FROM TO The meshing of ecological functions and inclusive resources in public space design HANA KETTERER Department of Landscape Architecture University of Oregon June 2021 II FROM D ~ I G TO O~N~~U~~~ The meshing of ecological functions and inclusive resources in public space design Hana Ketterer III IV APPROVAL Project Chair: Liska Chan Project Committee: Chris Enright and Kory Russel Submitted in partial fulfillment for the Master of Landscape Architecture Department of Landscape Architecture College of Design University of Oregon June 2021 The University of Oregon is located on the traditional indigenous homeland of the Kalapuya people. Following treaties between 1851 and 1855, Kalapuya people were dispossessed of their indigenous homeland by the United States government and forcibly removed to the Coast Reservation in Western Oregon. Today, descendants are citizens of the Confederated Tribes of Grand Ronde Community of Oregon and the Confederated Tribes of the Siletz Indians of Oregon. V VI ABSTRACT This project develops design strategies for landscape architects, planners, city officials, and public space designers that improve the provision of public space resources. Productive public landscapes that combine ecosystem services with inclusive community resources have potential to create more socially and ecologically resilient cities. Landscape architects have a major role in shaping how public spaces integrate these networks. Currently, there are 135 public parks in Eugene, Oregon. Yet they are used primarily for recreational purposes. With so many people facing precarity, I propose that a reassessment of what public space can provide for human and non-human users of a city. The design strategies I propose include 1) building urban food forests as novel ecosystems, 2) re-imagining urban waterways as a social and ecological artery, and 3) developing a cadence of amenities. As a speculative design project, I applied these design strategies through four facets of coexistence in public space: 1) spatial design and environment, 2) operations and maintenance, 3) program and activation, and 4) rights, rules, and accountability (Huttenhoff 2021). Using these design strategies, I developed a network of productive urban public spaces along Amazon Creek in Eugene, Oregon. Each space exemplifies a program of learning, harvesting, or sharing. Reframing Amazon Creek as a social and ecological artery of the city allows for human and non-human users to gain tangible resources such as food or habitat to support social infrastructure and ecological function. The strategies are intended to be transferable to projects and sites in a variety of locations that re-establish the potential of urban public space. VII In memory of Gene Reck. I would not be where I am today without your guidance and mentorship. VIII ACKNOWLEDGEMENTS Thank you to my project advisor, Liska Chan, for your continuous feedback, guidance, and all-around enjoyable conversations. Thank you, Chris Enright, for welcoming us our first summer and seeing us out our last term, I am incredibly thankful to have come full circle with you. Thank you to my amazingly talented cohort. I feel very lucky to have learned and grown alongside you these last three years, we have come a long way from this summer trip to Portland. Thank you, Iván. I could not have done the past three years without you. You push me to be a better person and designer every day. And lastly, thank you to my family and friends who have supported me from afar, your love and encouragement means so much to me. IX Table of Contents 01 Introduction 1 Introduction and Scope Significance Inquiry Methods 02 Concepts and Definitions 11 Urban Ecology Public Space Design 03 Design Strategies 25 Building Urban Food Forests as Novel Ecosystems Re-imagining Urban Waterways as Social and Ecological Arteries Developing a Cadence of Amenities X 04 Study Area 47 Eugene, OR Existing Social Resources Amazon Creek Introduce Design Scope 05 Design 63 Social and Ecological Artery Site 1: Learn Site 2: Harvest Site 3: Share 06 Reflection 111 Appendix 117 References 127 XI LIST OF FIGURES Graphics credit to Hana Ketterer, unless otherwise noted in text. Figure 1.1 Methods Workflow Diagram 8 Figure 2.1 Urban Ecology Attributes 14 Figure 2.2 Novel Urban Ecosystems 16 Figure 2.3 Example of Hostile Architecture 18 Figure 2.4 Facets of Coexistence in Public Space 21 Figure 3.1 Concepts to Strategies 27-28 Figure 3.2 Urban Food Forest Diagram 29 Figure 3.3 Beacon Food Forest’s Seven Level Beneficial Guild 34 Figure 3.4 Beacon Food Forest 2019 Yields 34 Figure 3.5-3.9 Beacon Food Forest site photos 36 Figure 3.10 Urban Waterways Diagram 37 Figure 3.11 SCAPE’s Design Proposal 38 Figure 3.12 ABC Functions of Streams 39 Figure 3.13 Indispensable patterns for Landscape Planning 40 Figure 3.14 Candence of Amenities Diagram 43 Figure 3.15 Amenities for Public Space Design 43-44 Figure 4.1 Eugene’s Median Household Income 50 Figure 4.2 Eugene’s Apartment Rent Ranges 50 Figure 4.3 Eugene’s Occupied Housing Units 50 Figure 4.4 Existing Social Resources 53-54 Figure 4.5 Amazon Creek Channelization 55 Figure 4.6 Amazon Drainage Basin 56 Figure 4.7 Existing and Potential Ecological Hotspots 58 Figure 4.8 Path Gap 60 Figure 4.9 Design Scope 62 XII Figure 5.1 Applying Design Strategies to Amazon Creek 65-66 Figure 5.2 Design Concept 68 Figure 5.3 Urban Design Interventions 69-70 Figures 5.4-5.9 Trail Connection Existing Conditions 72 Figure 5.10 Axon of Trail Connection | Mixed-Use Adjacent 73 Figures 5.11 Section of Trail Connection | Mixed-Use Adjacent 73 Figure 5.12 Axon of trail connection |single family homes 74 Figure 5.13 Section of trail connection | single family homes 74 Figures 5.14-5.19 Site 1 Existing Conditions 76 Figure 5.20 Site 1 Existing Conditions building and land use 77 Figure 5.21 Site 1 Existing Conditions Air Photo 77 Figures 5.22 Meandering Foodscape | Learn site design 79-80 Figure 5.23 Design Strategies implemented at Site 1 81-82 Figure 5.24 Diagram of Riparian Buffer before and after 84 Figure 5.25 Design Interventions for Amazon Trail 84 Figure 5.26 Design Interventions for the Family Center 86 Figures 5.27-32 Site 2 Existing Conditions 88 Figure 5.33 Site 2 Existing Conditions building and land use 89 Figure 5.34 Site 2 Existing Conditions Air Photo 89 Figure 5.35 Meandering Foodscape | Harvest 91-92 Figure 5.36 Design Strategies implemented at Site 2 93-94 Figure 5.37 Urban Food Forest and Public Orchard 96 Figure 5.38 Site 2 Section and Plant Palette 97-98 Figure 5.39 Seasonality of Plant Palette 99-100 Figures 5.40-45 Site 3 Existing Conditions 101-102 Figure 5.46 Site 3 Existing Conditions building and land use 103 Figure 5.47 Site 3 Existing Conditions Air Photo 103 Figure 5.48 Meandering Foodscape| Share 105-106 Figure 5.49 Design Strategies implemented at Site 3 107-108 Figure 5.50 Market Space and Community Park 110 Figure 6.1 ABC Functions of Streams 115 XIII 01 INTRODUCTION Introduction and Scope Significance Inquiry Methods 1 “Inclusion is not bringing people into what already exists; it is making a new space, a betteer space for everyone.” -George Dei 2 INTRODUCTION AND SCOPE Providing welcoming and unhindered access to public parks is not only a fundamental action towards environmental justice, but also for functional urban social and ecological systems (Beardsley 2007). I share Nina Marie Lister’s stance that by definition, our urban environments need to respond to the local environmental and social concerns of the community (2007). Access to gather in public space is a right (Kingwell 2009), and often, our society’s vulnerable populations are excluded from this right. While the term vulnerable populations encompass many members of our communities, people experiencing homelessness are a vulnerable community that rely heavily on public space and a focus of this project. In 2019, Eugene, Oregon reported the highest number of people experiencing homelessness per capita in the country with lack of stable and affordable housing as a leading cause of homelessness (Turner et al. 2019). While around 65% of the homeless population spends the night in shelters (Turner et al. 2019), public space needs to provide accessible space to gather and resources for people experiencing homelessness to access during the day. Urban parks currently lack amenities, resources, and comfort for this community. Furthermore, there are active measures in place to exclude people experiencing homelessness from public parks, such as hostile architecture and no loitering laws. Until homelessness is solved, landscape architects, especially those who design public space, have a duty to design equally for the people using public space for pleasure and those using it for survival. 3 Chapter 01 Additionally, with rapid urbanization, cities have a responsibility to serve their people and local ecosystems using resilient design (Ahern 2016). In alignment with this assertion, this project seeks to provide not only inclusive social resources for all members of the community but also ecosystem services for local ecologies. Drawing from concepts of urban ecology such as those conceived of by ecologist Richard Forman, and applied by Kate Orff, and Jack Ahern and intersecting them with inclusive resources in public space, this research provides key design strategies for combining these concepts and applying them to urban public parks. These strategies are tested through an urban park and riparian network along the Amazon Creek in Eugene, Oregon. Specifically, the possibilities of how urban space can serve social and ecological networks of a city are explored. While the primary need for people experiencing homelessness is a house, this project is not intended to provide housing for the unhoused. Instead it is intended to provide resources in public space for people experiencing homelessness through local ecosystem and social services. Until the systemic causes of homelessness are addressed, our communities need equitable access to coexist in public spaces regardless of their living situation. INTRODUCTION AND SCOPE 4 SIGNIFICANCE Contemporary landscape theorist, Nina Lister, states that intersecting the needs of our community’s vulnerable populations with ecosystems services is an essential step in the landscape architecture profession, serving both the ecological and social cultures of our cities (2007). As landscape architects, when we improve our public spaces for our community’s most vulnerable, we are improving for everyone (Huttenhoff 2021). This research contributes knowledge to the field of landscape architecture by developing tangible design strategies to integrate both urban ecological functions and inclusive social resources in urban park design. Recent research lead by SPUR and Gehl discuses that as designers of public space, it is our responsibility to create spaces that serve every user and celebrate their differences in the way they use public space (Huttenhoff 2021). Celebrating these different needs within an urban public space is essential to contribute to resilient cities socially and ecologically (Yao and Xu 2017, and Klinenberg 2018). For one, public space is where the unintended and unscripted interactions happen, contributing to resilient sociocultural cities (Beardsley 2007 and Klinenberg 2018). Common ground in a city provides for exchanges in ideas, resources, and culture; “there is a huge potential in the rich encounters and activities that make up the metropolis” (Chatterton 2010, p. 627). 5 Chapter 01 Moving towards a future projected to have a significant population increase in cities, we must understand the need for new concepts and structures of urban nature in its form and function (Ahern 2016). The physical infrastructure of our cities currently divides and lacks the ability to socially unify, “social infrastructure is the missing piece of the puzzle, and building places where all kinds of people can gather is the best way to repair the fractured societies we line in today” (Klinenberg 2018, p. 11). Landscape architects play a significant role in developing how to contribute to this shift and demand on urban nature to “feed, clothe, shelter, buffer, inspire, rejuvenate, and otherwise sustain a population of 10 billion humans” (Ahern 2016, p. 11). Specifically, through food and water landscapes, these re-imagined urban park design strategies can serve local ecosystem services and the needs of vulnerable populations to provide inclusive public space design that serves as social infrastructure for all users. SIGNIFICANCE 6 INQUIRY and METHODS This research is lead by the following questions: How can urban ecological function in public space design provide inclusive community resources? What strategies can landscape architects implement to provide inclusive resources through local urban ecologies in public space design? The primary method of inquiry for this project was research through design. A literature review defined concepts around urban ecology and public space design. These definitions and concepts lead to the development of three key design strategies to apply through public space design. These design strategies were applied to a network of site designs along Amazon Creek in Eugene, Oregon through speculative design. Figure 1.1 Methods LITERATURE REVIEW Workflow Diagram The literature review process combined books, articles, and conversations with members of the community relevant to the main concepts of this project: urban ecology, public space design and how it can provide inclusive resources for the community. Literature included defining urban ecology primarily through ecologist Richard Forman and professor and researcher Jack Ahern. Defining public space design theory pulled from a wide range of existing knowledge. This included, but is not limited to, the study of park design through the essays and case studies of Large Parks, edited by Julia Czerniak and George Hargreaves with contributions from landscape architecture practitioners and theorists. In addition to park design, the theory of a right to the city was explored through The Arsenal of Exclusion and Inclusion, by 7 Chapter 01                                ­                            -1    .. ····· ·······•. .     ..• · ··. .   .•• • ._. •.•. ,,       . ~. ·. . ... .   .. . .. ,  b:.•     Interboro, and complemented by many other public space theories and perspectives. Improving physical public space cannot be discussed without including the understanding of social infrastructure. Palaces for the People by Eric Klinenberg outlined the importance of physical design supporting the improvement of social infrastructure in cities. Lastly, the research by SPUR and Gehl discussing four facets of coexistence in public space provided a lens for these concepts and design strategies to be applied. Outlining these existing concepts and definitions was a key step to gathering fundamental knowledge on these topics to support a theoretical framework for developing design strategies and moving towards design. INQUIRY AND METHODS 8 CONCEPTS TO STRATEGIES Through literature review, conversation, and classification of existing concepts, the gap in knowledge was identified as the meshing of ecological functions and inclusive resources in public space design. To address this gap, three design strategies were developed to provide tangible ways to intertwine these existing theories. The design strategies are 1) building urban food forests as novel ecosystems, 2) re-imagining the urban waterway as a social and ecological artery and 3) developing a cadence of amenities. The first strategy urban food forests as novel ecosystems was developed through combining Clark and Nicholas’ and Beacon Food Forest’s implementation strategies of productive landscapes. Secondly, the strategy of re-imagining the urban waterway was formed through existing strategies implemented by Kate Orff and SCAPE and revisiting Jack Ahern and Richard Forman’s ecological water concepts. Lastly, developing a cadence of amenities grew from the social infrastructure theory of transient communities and networks. Providing amenities in public space, such as restrooms and seating, already exists but there is still more potential for amenities that compliment a social and physical network of a city. While these three strategies are not all encompassing of what is needed for inclusive public space design, they are the foundation that guided speculative design in this project. SITE BASED KNOWLEDGE To successfully apply these design strategies, place-based knowledge is necessary. An extensive look at Eugene, Oregon for existing environmental and social systems was performed to understand how to better integrate these systems with each other and supplement existing resources. Providing inclusive resources in public space requires identifying the communities’ most vulnerable populations. In Eugene, a 9 Chapter 01 vulnerable community is people experiencing homelessness. Once this was identified, mapping existing social resources serving people experiencing homelessness developed a spatial narrative that can be built upon. This site analysis informed opportunities to implement these design strategies along Amazon Creek to develop an ecological and social artery for the city. SPECULATIVE DESIGN Speculative design provides us an opportunity to explore the “what if ’s” of our profession. As stated by Dunne and Raby; “one is to use design as a means of speculating how things could be-speculative design. This form of design thrives on imagination and aims to open up new perspectives on what are sometimes called wicked problems, to create spaces for discussion and debate about alternative ways of being, and to inspire and encourage people’s imaginations to flow freely.” (2014, p. 2) Employing research through design, I applied the three design strategies, developed in the previous stage of research, across different scales to speculate a different future for Amazon Creek. This process produced an urban design strategy and three site scale designs. Through this speculation, this project generated knowledge for landscape architects and design practitioners on how urban public space design can provide multi-functional landscapes for its community’s social and natural environments. Discussion and critique of the site designs along Amazon Creek is provided to determine the success of these design strategies and how to improve upon them in future implementations. INQUIRY AND METHODS 10 02 CONCEPTS and DEFINITIONS Urban Ecology Public Space Design 11 CONCEPTS and DEFINITIONS “Moving forward, we need to think analytically about the interconnectedness of social and physical systems, knit these strands together, and derive new territories for action.” -Kate Orff 12 URBAN ECOLOGY Richard Forman’s work has provided accessible urban ecology concepts for many practitioners, including landscape architects. This section outlines those concepts and introduces how they led to ecological design strategies applied by many landscape architects, especially Kate Orff and Jack Ahern, whose work I will describe in Chapter 03. Kate Orff’s research and writing centers around the theory of “urban landscape design as a form of activism” (Orff 2016). She frames ecology as an opportunity to synthesize disciplines between landscape architects, urban designers, community organizers, etc. to use ecology in the built environment to impact social infrastructure and change from the community up. SCAPE uses a systems-based practice to join social and natural systems through their projects (Orff 2016). Jack Ahern is a recently retired professor for University of Massachusetts, Amherst in the Landscape Architecture and Regional Planning Department. His research centers around novel urban ecosystems and landscape ecologies and applying those concepts to urban planning and design. Richard Forman defines urban ecology as the “interactions of organisms, built structures, and the physical environment where people are concentrated” (Forman 2015, p. xii). Forman frames urban ecology into four defining features: land uses, built structures, permeating anthropogenic flows, human decisions/activities. Each feature is defined by a series of attributes, seen in Figure 2.1. From there, Forman lays out ninety urban ecology principles that describe typical conditions of ecological patterns in the urban environment, (which are recorded in the Appendix). These principles can be used to guide design decisions to improve ecological patterns in the urban environment. Some of the principles explained by Forman describe ideal 13 Chapter 02 situations, while others depict conditions in urban ecology that could be improved. For example, “stormwater runoff largely from impervious surfaces and low-friction pipes dominates water flows, and hardly any water cycling/ recycling occurs within an urban area” (Forman 2016, p. 1659) is a principle describing an existing condition that can be used to guide improvement of water quality in urban areas. Some principles can be drawn upon and combined with others or pushed further to improve urban ecology and provide resources in public landscapes. These include “trees cool air by shading wall, sidewalk and street, by transpiring water, and by accelerating airflow between tree crown and wall” and “diverse types of urban agriculture provide a distinctive flora, abundant herbivore populations, and nutrient-rich soil and water” (Forman 2016, p. 1657). The broader, organizing categories these 90 principles fall under are as follows: habitats, biodiversity, plants and vegetation, animals/wildlife, Land Uses Built Structures Water-supply sources area, development Buildings, roads and streets, pipes and and suburban areas, residential areas, com- pipelines, impervious surfaces, concentrat- mercial and industrial areas, greenspace ed diverse structures patches, green corridors and “stepping stone” sequences Permeating Anthropogenic flows Human decisions/activities Human-produced chemicals, human waste- Past societal actions/activities (or general water, human-produced noise and light, evolution of an urban area), current societal vehicles actions/activities, individual decisions Figure 2.1 Urban Ecology Attributes Forman’s categorizations of urban ecology attributes into four groups/features (Forman 2016) URBAN ECOLOGY 14 soils and organisms, chemicals and organisms, air and organisms, water and organisms, greenspaces, residential, commercial, industrial areas, and city and ring-around- the-city. All 90 principles, with distinctive ones identified that guided further research, are recorded in the Appendix. Very commonly habitat fragmentation arises as urbanization and density increases. Fragmentation decreases the landscape’s ability to sustain healthy native wildlife species through the diminishing size of habitat patches in urban areas, increased isolation of patches and complete habitat loss due to invasive species take over (Hennings and Soll 2010). Implementing patches, corridors, and the matrix are landscape ecology strategies used to tackle issues of habitat fragmentation and is further discussed in the Design Strategies chapter. Definitions are as follows: Patches are defined as “a relatively homogenous nonlinear area that differs from its surroundings” and provide many ecological functions such as “wildlife habitat, aquifer recharge areas, or sources and sinks for species or nutrients” (Ahern 2007, p. 271). A corridor is “a linear area of a particular land cover type that is different in context and physical structure from its context” (Ahern 2007, p. 271). The matrix is “the dominant land cover type in terms of area, degree of connectivity and continuity, and control that is exerted over the dynamics of the landscape” (Ahern 2007, p. 271). 15 Chapter 02 Remnant / Restored Native Abandoned / Ruderal Horticultural / Formal Green Infrastructure Definition             ­                                                               Examples                      Principal              Ecosystem                        Services        Design and                          Managment          Considerations       Figure 2.2 Novel Urban Ecosystems Table adapted from Ahern’s novel Urban Ecosystems (2016, p.14) Bolded are the areas of focus for this project Novel urban ecosystems are a landscape typology discussed by Jack Ahern that have the potential to assist cities in becoming more sustainable and resilient (2016). Novel urban ecosystems, as defined by Ahern, are “ecosystems that persist or arise in cities, resulting from – and structured by – intentional or indirect human management actions [...] with unique species composition and structure influenced by biotic introductions and invasions; and that provide a suite of ecosystem services / disservices resulting from interactions of biota with the altered abiotic urban environment” (2016, p. 13). Ahern’s further classification of typologies within novel urban ecosystems can be seen in Figure 2.2 and is used to inform design strategies. These urban ecology concepts discussed directed further research that developed public space design strategies, seen in Chapter 03. URBAN ECOLOGY 16 PUBLIC SPACE DESIGN Given the large amount of public land in U.S. urban areas and how little change there has been in the ways we use and perceive it, requires a re-evaluation as to how it is being used and how it can better serve the local communities and ecosystems that exist in the public realm (Nordahl 2009). As landscape architects, we have the privilege to shape and define not only the ways in which communities interact with existing public space design, but also the ways in which we all can view evolving public space in the future (Lindner and Meissner 2019). Having the ability to envision the potential of urban space is not the only way to shape a city; “urban life is shaped not only by the urban visions of planners, architects, or cartographers, but – just as significantly – through everyday actions of inhabitants [...]” (Lindner and Meissner 2019, p. 4). There is richness in the urban environments we create that stems from people living together, sharing resources, communicating, exchanging goods and ideas (Chatterton 2010). Our place, as public space designers, is to allow and celebrate those interactions in its most natural form through design. Our city’s public spaces, specifically parks are meant to celebrate the “unscripted interactions” that happen between all members of the community (Beardsley 2007). According to Nina-Marie Lister, large public parks need to be designed through an adaptive ecological design approach, which is defined as “sustainable design: long-term survival demands adaptability, which is predicated on resilience” (Lister 2007, p. 36). When applying an adaptive ecological design approach to public parks, one cannot just rely on ecological survival as a measure of success, but also economic health and cultural vitality to deem a park as thriving (Lister 2007). 17 Chapter 02 Therefore, public space design needs to encompass ecological and programmatic complexity for both biological and social communities to interact and thrive (Lister 2007). Public spaces are just that: Public. Yet designers regularly design spaces that exclude certain members of the community. Physical and spatial design elements in public parks significantly impact user perception and behavior in these spaces (Huttenhoff 2021). This happens in many forms; one example is hostile architecture. One case of hostile architecture, as seen in Figure 2.3, is a bench discouraging individuals to sleep or sit on it in a certain way. This is scripting a particular way of using and existing in public space, exclusive design. This specific example is a strategy designing against people experiencing homelessness. This leads me to the following question: On a site scale, how can our designs better reach the members of our community that have often been designed out of spaces for so long? Figure 2.3 Example of Hostile Architecture (source: Ethan Levey) PUBLIC SPACE DESIGN 18 Ways to exclude certain users from public spaces vary. They can be physical, like the ones I described above, or in the form of signifiers. One such example is loitering. The definition of loitering varies but generally, loitering is occupying a public space for an elongated time with no apparent purpose (Armborst et al. 2017). The specifics and legality of this differs from state to state but essentially it allows for and encourages unfair law enforcement, “anti-loitering efforts notoriously target teenagers, the homeless, and people of color” (Armborst et al. 2017, p. 232). In Oregon, no loitering efforts concentrate on school property or outdoor space of businesses. There are additional strategies to ban loitering without posting “no-loitering” signs, this includes resident- only parks (Armborst et al. 2017, p. 232). No matter the mask it is hiding behind, these movements all fall under exclusive design, intentionally restricting access to public space to certain members of the public, commonly allowing this restriction based on perception. As landscape architects, we hope for people wanting to spend time in our designed public spaces for no other reason than to just spend time in the outdoors. While, legally, these are difficult hurdles for public space designers and landscape architects, these unfortunate regulations shape the cities we exist in and design for. We can attempt to combat these exclusions through encouraging interactions that celebrate our differences in public space rather than displaying what some may subjectively perceive as undesirable behavior. Behavior described above can be regularly seen throughout Eugene. People experiencing homelessness has been an increasing circumstance all over the country, but especially in Eugene in recent years. As I discussed previously, people experiencing homelessness often are designed out of public space through hostile architecture, exclusive design, or policing such as no loitering laws. Public space has a much greater potential to provide resources for all members of 19 Chapter 02 We can attempt to combat these exclusions through encouraging interactions that celebrate our diff erences in public space rather than displaying what some may subjectively perceive as undesirable behavior. the community, specifically vulnerable populations such as people experiencing homelessness, through inclusive design strategies. This concept led further research into stigmas behind homelessness as well as resources these communities desire in public space. Becoming homeless is the result of multiple complex factors and does not happen overnight (Williams et al. 2018). These circumstances include but are not limited to structural factors (i.e. lack of aff ordable housing), systems failures (i.e. lack of support from health care systems), and unique individual and family circumstances (Williams et al. 2018). While the road to homelessness is so complex and specific to everyone, a leading cause is the increase of housing costs and lack of aff ordable housing. Housing aff ordability is defined by comparing a household’s income to the cost of housing. If a household spends 30% or more of its income on housing, it is referred to as “cost burdened”, when it is 50% or more it is “severely cost burdened” (Williams et al. 2018). While the primary need for people experiencing homelessness is a house, there are many other ways public space designers and planners can design public space more catered towards homeless communities. An individuals’ living condition does not warrant them being denied the use of public space (Huttenhoff 2021). PUBLIC SPACE DESIGN 20 Facets of Coexistence .. . •• Dialogue •• . .. Figure 2.4 Facets of Coexistence in Public Space (source: Huttenhoff 2021) . . . . . . . . . . . .. Houseless communities move and exist completely in the public realm, their private tasks and belongings live in public space (Erlhoff et al. 2008). Until the unhoused are housed, all members of the community need to coexist in public space. Recent research by SPUR and Gehl on coexistence in public space lead to four overarching facets to guide public space design: 1) spatial design and environment, 2) operations and maintenance, 3) program and activation, and 4) rights rules and accountability, (Huttenhoff 2021) as seen in Figure 2.4. My design strategy is strongly influenced by these four facets. The design strategy implementation along Amazon Creek is discussed as a systems approach through these facets. 21 Chapter 02 01 Spatial Design and Environment: This facet focuses on the relationship between the physical space and human experience, this includes elements such as seating, lighting, wayfinding, etc. Typically, this facet is envisioned and developed by urban designers, landscape architects and engineers, yet it needs to respond to the behaviors of the people using the space. 02 Operations and Maintenance: The groups responsible for maintenance are often different than those who design the space. This facet includes repairs, landscaping, cleaning and waste management, all carried out by public works, parks department, volunteer groups, etc. 03 Program and Activation: Parks and public space have the opportunity to re-imagine the programming that activates the space to draw people in. “The opportunity for such public space managers is twofold: to create invitations for many types of users – including the unhoused – and to assign responsibility for program management to the most appropriate stakeholders.” (Huttenhoff 2021) 04 Rights, Rules, and Accountability: While everyone has, or should have, the right to access and use public space, there are behaviors that unacceptable or unsafe in public space that should be codesigned by communities to allow for a safe and functional space. PUBLIC SPACE DESIGN 22 An article entitled “The Homeless Want More Than Housing” articulates specific resources desired by people experiencing homelessness (Gilmartin 2016). Some desired resources are physical infrastructure in the right of way (such as speed bumps and curbs that narrow the street to cause for slower traffic, and more shaded sidewalks). Others are simple, like storage units, drinking fountains and charging stations (Gilmartin 2016). Additionally, other resources can be incorporated into and strategized with local urban ecologies to provide benefits not only to the homeless communities, but also the local environment. These resources include vegetable gardens or fruit trees (Gilmartin 2016). Landscapes have the potential to provide resources and connect communities to existing social infrastructure and programming to supplement it. Not only are physical resources such as fruit bearing trees and storage units in public space desired by people experiencing homelessness, but also social gathering spaces to build community (Kingery-Page and Brown 2019). Creating a landscape that can support the building of social ties and communities should be an important goal for landscape architects in public space designs. 23 Chapter 02 “Public spaces should be comfortable and engaging for people with homes and – until we solve homelessness – for those without homes.” -Michelle Huttenhoff , 2021 PUBLIC SPACE DESIGN 24 03 DESIGN STRATEGIES Urban Food Forest as a Novel Ecosystem Re-Imaginging Urban Waterways Cadence of Amenities 25 “Structurally integrating ecosystem services into landscape planning, management, and design is critical to improving urban landscape sustainability and resilience, and improving human well-being.” -Kyle H. Clark and Kimberly A. Nicholas, 2013 26 CONCEPTS TO STRATEGIES After I gathered existing research in urban ecology and public space design through literature review, I generated three design strategies to apply to urban public space. Within each existing concept I took note of key themes, issues, and opportunities that informed three main design strategies of: building Urban Food Forests as Novel Ecosystems, Re- Imagining Urban Waterways as a social and ecological artery, and developing a Cadence of Amenities, as seen in Figure 3.1. My goal with these strategies is for landscape architects to incorporate them into public space design, no matter the client, program, or audience. As discussed in Chapter 02, SPUR and Gehl’s facets of coexistence in public space will provide a lens through which design implementation of these strategies is discussed in Chapter 05.       …  Figure 3.1 Concepts to Strategies Diagram showing existing knowlege   „ …  guiding design strategies            27 Chapter 03                                                ­€ ƒ         ‚   „  “Building real connections requires a shared environment - a social infrastructure.” -Eric Klinenberg, 2008       …    „ …             CONCEPTS TO STRATEGIES 28                                                ­€ ƒ         ‚   „  URBAN FOOD FOREST AS A NOVEL ECOSYSTEM According to Clark and Nicholas (2013), there is a large untapped potential for urban food forests to serve local ecologies while also providing resources for communities in public space. Currently, cities are still highly dependent on land from rural communities to produce food, goods, 00000000000000000000 0000000••• 0000000000 and resources. This is due to the compartmentalized eff ects 000000•••• 0000000000 of zoning on cities, which prohibited agriculture within 000000•••• 0000000000 urbanized neighborhoods, followed by suburban sprawl that 000000•••• 0000000000 0000000••• 0000000000 pushed agriculture activities even further (Nordahl 2009). oooooooooo eeoooooooo Multifunctional landscapes will be a key player in the shaping 0000000000 ••• 0000000 of a resilient future for our social and natural environments. oooooooooo eeoooooooo 0000000••• 0000000000 Urban food forests can provide ecosystem services for local 00000••·•• 0000000000 ecologies as well as resources and services for the social 000••···•• 0000000000 culture of a city (Nordahl 2009). 000••···•• 0000000000 000••···•• 0000000000 000••···•• 0000000000 Urban food forests provide ecosystem services such as 0000••··•• 0000000000 0000000••• 0000000000 improving air quality, water and micro-climate regulation, 0000000000 ••00000000 oxygen production, erosion control, nutrient-rich soil, and 0000000000 •••0000000 biodiversity habitat (Clark and Nicholas 2013, Forman 2016). 0000000000 ••·••00000 0000000000 ••·••00000 Socially, urban food forests can provide opportunities in 0000000000 ••·••00000 public space for cultural and recreational resources through 0000000000 ••••000000 oooooooooo eeoooooooo harvesting, maintenance, and food all on common, public 00000000000000000000 ground (Clark and Nicholas 2013), while also contributing 00000000000000000000 to a more sustainable socio-ecological future (Lindner and Meissner 2019). Nordahl, comparing flowers to fruit, states; “if Figure 3.2 Urban Food flowers can be an accepted symbol of goodwill and inspire all Forest Diagram who gaze upon them, can fruit become an accepted symbol of equity, for all to eat?” (2009, p. 2) Providing food in public space must first come with a change in what we expect from plants in public space; they cannot just be for aesthetics, but also have the ability to provide resources such as nutrition (Nordahl 2009). 29 Chapter 03 Additionally, growing and cultivated food in community gardens or food forests creates stronger, more resilient social ties and helps create an inclusive and resilient space (Hou 2017), another resource people experiencing houselessness are seeking (Kingery-Page and Brown 2019 and Huttenhoff 2021). The social significance of urban gardening ranges from health and access to fresh food to improving community development and resilience (Hou 2017). Nordahl argues “food choices in our urban surrounds can give citizens a more bountiful life” (2009). Ecosystem Services Social Resources improving air quality public space for cultural and recreational resources through water and micro-climate harvesting, maintenance regulation food all on common, public ground oxygen production cultivating food in community erosion control gardens or food forests creates stronger, more resilient social ties nutrient-rich soil helps create an inclusive and resilient biodiversity habitat space (Clark and Nicholas 2013, Forman 2016) (Hou 2017, Clark and Nicholas 2013) URBAN FOOD FOREST 30 CLARKS AND NICHOLAS Specific design strategies for urban food forests have come from a variety of sources including Kyle Clark and Kimberly Nicholas and the Beacon Food Forest located in Seattle, WA. Clark and Nicholas’s approach to urban food forests suggests the intersection of urban forestry, urban agriculture, and agroforestry create a novel landscape in urban environments (2013). Their definition of urban food forestry is “the intentional and strategic use of woody perennial food-producing species in urban edible landscapes to improve the sustainability and resilience of urban communities” (2013). Clark and Nicolas’ strategies are as follows: ................................................................................................ 01 Emphasis on multifunctional species that serve urban forestry through air quality, water and climate regulation, oxygen production, erosion control, and biodiversity habitat and urban agriculture through increasing community food security, public health, social capital, and microenterprise opportunities, and lastly, integrating agroforestry to further ecosystem services (Clark and Nicholas 2013) 31 Chapter 03 02 Planting fruiting trees at high-density (1 m spacing or less, “fruiting walls”) includes advantages such as much shorter trees (2-3 m high) with more accessible fruit and lower maintenance requirements and is able to achieve substantial yields within the first two to four years, and full production by year five. This allows for more accessible engagement from members of the public to interact with and access this public produce (Clark and Nicholas 2013) 03 Clarks and Nicholas created a reference table of perennial food- producing plants including urban trees, shrubs, and vines (this table can be found in the Appendix). It is used to help determine the plant list for the site designs along Amazon Creek in Eugene, Oregon. While assessing other plants suitability not included in this table due to the geographic difference between their study area and mine, I can refer to their criteria which includes: 1) Fit for human consumption 2) Commercial cultivation and breeding for human food 3) Wide recognition and marketing 4) Fruit or nut palpability when eaten raw 5) Edibility without special preparation (peeling or cooking) (Clark and Nicholas 2013) URBAN FOOD FOREST 32 BEACON FOOD FOREST Beacon Food Forest is located in Seattle, Washington and is a grassroots project almost entirely powered by volunteers. It identifies as a demonstration site and learning community that re-imagines the potential of what urban green spaces can offer. Working with a 7-acre plot of land, the design process was based on the principles and ethics of permaculture. Their planting strategy includes a seven-level beneficial guild for a forest garden, as seen in Figure 3.3. The seven levels include: a canopy, a low tree layer, a shrub layer, a herbaceous layer, the rhizosphere, the soil surface, and a vertical layer. Currently just over 3 acres of the land are being used as a food forest, giving garden, and P-Patch plots (plots managed by the city of Seattle and acquired through volunteering time). A Figure 3.3 Beacon Food majority of those 3 acres are deemed “open harvest”, which Forest’s Seven Level Benefical Guild (source: means anyone can forage freely from the site. Beacon Food Beacon Food Forest) Forest partners with the city’s Department of Neighborhoods to help provide utilities and run the P-patch community Figure 3.4 Beacon Food Forest 2019 Yields garden program. This partnership acts as a precedent of (source: 2019 Annual how to integrate similar productive landscapes into Eugene Report) communities and organizations. In 2019, 7,072 volunteer hours were recorded. While there is a staff at Beacon Food Forest, a lot of their maintenance is dependent on volunteers and P-Patch plot owners. Community engagement is a huge aspect of their mission to inform and encourage as many community members as possible to harvest, volunteer, and engage with the food forest. Educational classes are also a part of the programming hosted by volunteers. There was an estimated 2,823 lbs of fruit, vegetables, and herbs that were harvested in 2019. The breakdown of the produce contribution is seen in Figure 3.4. 33 Chapter 03 I, CA,.JOf'J ( LAR(r£ FR.Vii o !JU, TREES) 2. Low T~fE LAYtA. ( DwAl{F F(vlf T.> l3ffT5, HEf{.(3~) S', RHIZ.05 PHE:R.E" ( R._OOT VECrETAf3LEj) 6 . .Sol/_ SUR..Ff'l CE C& R.ovrv o We estimate that a tot(aOl voff. R2,,E8v2-1, 35 TlbRs/I IAo/f6 EfrAuAitY, ,v e€gTeCt)a bles and herbs were harvested at the Beacon Fo7o.d V FEoRr.Tels tC AinL 2 0L1A9YE, Rm, ainly by neigh- bors visiting the site and collectin(g ( plrlto'td0uEcRe Sa,c cVoI rtd-JinOg )t o their needs. Our on-the-vine food sharing strategy continues to be successful in sharing public food on public land with virtually nothing going to waste. In the future, we hope to develop a tracking system that allows us to record the exact harvest quantities and number of visitors on site, while continuing to keep the food forest and garden open to fLo ragers 24/7. TH€ fOREST G-AR.D£/\J: A SEV€tJ LfV£L BENE.FIC.IAL G-u11• . D Quantity (lbs) Produce Quantity (lbs) Produce Helix Garden 50 Apples 1200 (beans, peas, beets, kale, chard, collards, squash, tomatoes) 10 Artichokes 20 Horseradish 150 Aronia 20 Honeyberries 1 Asparagus 100 Jostaberries 30 Autumn Olive 1 Kiwi 100 Blackberries 20 Medicinal Herbs 50 Blueberries 3 Medlar 20 Boysenberries 30 Mulberries 10 Burdock 2 Nettles 1 Butternuts 3 Peaches 250 Cardoon 20 Pears 2 Chocolate Berries 2 Persimmon 20 Culinary Herbs 200 Plums 50 Currants 125 Quince 30 Elderberry 75 Raspberries 10 Figs 8 Rhubarb 10 Fuki 1 Seabuckthorn 3 Goji Berries 1 Shipova 5 Goumi 150 Sunchokes 15 Grapes 10 Thimbleberries 5 Edible Flowers 10 Wineberries TOTAL 2823 lbs 15 URBAN FOOD FOREST 34 Beacon Food Forest’s funding comes a variety of sources including the Food Forest Collective, GROW fiscal sponsor, grants, programming revenue, and donations. The funding covers two part-time employees of the Beacon Food Forest primarily through the Bullitt Foundation. These roles primarily focused on outreach, volunteer, and development coordination. These responsibilities take just as much time as physical maintenance of the land, emphasizing the need for planned maintenance and volunteer coordination for implementing urban food forest strategies on public land. “He decides to plant the vine right behind a public bench, his logic being this location aff ords some protection to errant vandalism yet is close enough for people to reach their arm over the backrest if they want a quick snack.” -Darrin Nordahl, 2009 Figures 3.5-3.9 Beacon Food Forest site photos (source: Jonathan H. Lee) 35 Chapter 03 URBAN FOOD FOREST 36 RE-IMAGINING URBAN WATERWAYS According to Kate Orff, urban hydrologic waterways and systems have great potential to provide improved ecological performance and social life of a city (Orff 2016). Urban rivers and creeks have an immense amount of potential to serve their immediate surroundings through filtering urban •• • • stormwater runoff, providing vegetal and aquatic life, as well ........ •• •• as provide aesthetic and even recreational value to the urban ..•• • fabric. . •• • ... . .. .. In the urban landscape, there are multiple opportunities for •••• • • • water systems to promote resilient urban public spaces (Yao •.. and Xu 2017). When valued in the urban fabric, water is an . •• environmental and civic common asset that can be leveraged •• ••• • to regenerate biological and social life. SCAPE’s design ........ ..... • process is “unlocked” by water through observing the way .•• in which it reveals environmental and cultural histories in the •• • •• .. built environment (Orff 2016). In cities, rather than desiring .. .. .. .. • to restore water landscapes, we must look to revive. While •... still allowing the water to reveal its’ history, reviving allows for ........ • •••• creative and innovative design that moves us forward, rather .•• than back. Additionally, reframing hydraulic systems in urban . •• landscapes can improve ecological performance and spark •• .. .. interest in the community towards these systems (Orff 2016). •••• • • Yao and Xu believe that a key design strategy to promote •. resilience of urban public spaces is to de-channelize water Figure 3.10 Urban into natural, meandering rivers and streams (2017). Since Waterways Diagram water crosses all boundaries and scales, there is opportunity to plan and design with water from regional networks to interacting directly with the water at a site scale. Designing at the site scale in the public realm allows for strategies such as daylighting culverts, demolishing pavement, and adding more absorptive edges (Orff 2016). Looking at projects by SCAPE, such as Town Branch Commons in Lexington, Kentucky, as seen in Figure 3.11, we can draw from concepts and strategies 37 Chapter 03 for innovative design moves with water in public urban space. Similar to Amazon Creek in Eugene, Oregon, the Town Branch has been hidden from the public and channelized for much of the city’s recent history (Orff 2016). The primary concept for the Town Branch revival project is revealing the way in which water moves through the landscape and contributes to its’ regional system. Revealing is accomplished through strategic actions of retaining, capturing, slowing, or even quickening for dramatic effect to align with urban space typologies (Orff 2016). Slowing the stream allows for understory shrubs and riparian habitat to establish (Orff 2016). Diverting and slowing the water helps to resolve the negative impacts that channelization and impervious surfaces have on urban waterways (Forman 2016). By introducing infrastructures such as filtration gardens and natural pooling provides for cleaner urban water systems and unique effects on public gathering (Orff 2016). ii CLEAN Figure 3.11 SCAPE’s Design proposal for Town Branch Commons in Lexington, KY (Source: https://www.scapestudio.com/projects/toward-urban-ecology/) URBAN WATERWAYS 38 As it sits currently in the urban core, the Amazon Creek flows through an entirely impervious surface for approximately 12 blocks, which intensifies disturbance by humans and limits aquatic fauna through limited littoral and vegetation zones (Forman 2016), and limits the abiotic, biotic, and cultural (ABC) functions it provides (Ahern 2007). We can place Amazon Creek on Ahern’s continuum of hydrological/stream types as it functions now, seen in Figure 3.12. Revealing and de-channelizing the creek can allow for an ecologically rich riparian corridor to revive the water and species it hosts, while also reconnecting the people of Eugene to its’ local hydrologic systems and help improve its position on the continuum of ABC functions. Since each function responds diff erently across the continuum, as designers we need to implement an array of strategies across one stream to best realize its ability to serve each function type (Ahern 2007). For example, one portion of Amazon Creek might better serve cultural functions while another best serves abiotic functions, etc. Green infrastructure interventions are a key part in re-imagining urban waterways and design for a successful urban riparian network. e Amazon Creek Existing Conditions I u I ~ § 0 :a I E § / ::, "- Vl / / l / --- Figure 3.12 ABC Functions of Streams Adapted from Ahern’s continuum of hydrological/ stream types and associated abiotic, biotic and cultural Engineered, linear, sealed, Open, dynamic, meandering. functions applied to the study isolated, segregated diverse, geomorphologic area of Amazon Creek 39 Chapter 03 Figure 3.13 Forman’s “indispensable” patterns for landscape planning: (1) large patches of G 0 natural vegetation, (2) stream/ 0 river corridor, (3) connectivety 0 c) between patches and stepping I) 3 stones, and (4) small “bits of !) 9 B nature” (Forman 1995, p. 452) 0 (J 8 Green infrastructure is an integral concept in successful public space design that links-built infrastructure with ecological functions and has the ability to achieve abiotic, biotic, and cultural goals of a community (Ahern 2007). According to Ahern, green urban infrastructure pulls from landscape ecology principles such as “a multi-scale approach with an explicit recognition of pattern: process relationships and an emphasis on physical and functional connectivity” (Ahern 2007, p. 267) to apply to urban design. A multi-scale approach applied to urban environments acts at the larger metropolitan region, districts and neighborhoods, as well as individual sites (Ahern 2007). Understanding how systems work at each of these scales is necessary to understand the existing hierarchy of urban operations such as transportation and non-human species movement through urban environments. To address issues such as habitat fragmentation, we can strategically organize green infrastructure interventions into the urban fabric to fill these gaps (Ahern 2007). Interventions such as patches, corridors, and the matrix can be implemented, as defined by Ahern in the Concepts and Definitions chapter. These strategies can be complimented with Forman’s indispensable patterns, as seen in Figure 3.13. Improving the riparian buffer not only provides habitat URBAN WATERWAYS 40 patches and corridors in the urban core, but also leads to better habitat connectivity from surrounding natural areas. “The optimal spatial arrangement of a cluster of steppingstones between large patches provides alternate or redundant routes, while maintaining an overall-linearly- oriented array between the large patches.” (Dramstad, Olson, and Forman 1996, p. 38) Spatial forms of patches and corridors that address not only habitat fragmentation, but also other ABC functions are seen in Forman’s indispensable patterns theory in Figure 3.13. Ahern lays out 5 key guidelines for planning and designing urban green infrastructure that are based on landscape ecology principles (2007). 01 ARICULATE A SPATIAL CONCEPT Articulated as metaphors (ie. Green heart, ring city), they can structure and inspire the planning process, especially with public engagement and participation (2007). 02 STRATEGIC THINKING “Protective, defensive, offensive, or opportunistic strategies” (Table 17.3 on p. 271), places planning in a broader context, aware of macro divers of change with respect to a particular goal in a certain place. “When the existing landscape is already fragmented, and core areas already limited in area and isolated, a defensive strategy is often applied.” (2007, p. 271) While offensive strategies are based on a vision, opportunistic strategies seek new or innovative opportunities to provide ABC functions in and with urban infrastructure (2007). 41 Chapter 03 03 THE GREENING OF INFRASTRUCTURE Stormwater: rather than just controlling runoff, how can we improve and/or provide more ABC functions through green roofs, infiltration wells, vegetated bioswales, small ponds and created wetlands (2007) 04 PLAN FOR MULTIPLE USE “How can new functions be added when the built environment has already displaced or replaced ‘natural’ areas and functions?” (2007, p. 275) One way is vertical integration, multiple functions can be stacked in one location. “Innovative scheduling can also be employed to integrate and coordinate the time dimension of ABC functions. Examples of infrastructure scheduling include limited human use of hydrological systems during periods of high flows, restrictions of recreational use of habitat areas during sensitive breeding periods.” (2007, p. 275) 05 LEARN BY DOING Transferability of ecological practices and concepts aren’t seamless between different regions, climates, cultures, etc. A transdisciplinary approach is necessary to understand the specifics of regional ecological context to best apply strategies. For example, a corridor system for Koalas in Australia has extremely different needs to moose corridor in northeastern USA (2007). URBAN WATERWAYS 42 CADENCE OF AMENITIES According to Robert Garcia, Director of Center for Law in Public Interest in Los Angeles, webs of smaller urban parks providing recreation and facilities could better serve low- /_,,,, ... - -- ........... ,\ income and minority populations than larger, more distant ,, ' ' parks (Beardsley 2007). Our cities’ hard infrastructure I' I' 'j I I \ I I l \ / J I \ / / I ' ✓ I currently isolates members of the community with transitory \,, ,,''_,____ -::::,,, ,,'/ patterns based on the vehicle and planning strategies based ,),,, ).,, ,' ' .......... __ _ __ ...... ✓ \, on single-family homes, which are not accessible to everyone /,,,,✓✓-✓---- -- ...... ,,,,\ (Klinenberg 2018). While these systems and infrastructures ,l/ ~', I \ I \ I \ I \ are designed to be eff icient, they isolate us and don’t allow I \ I \ communities to build social ties. Physical infrastructure ( ',,'-,>~ -~--/ , , ' ' social resources in place providing services to vulnerable ,, ' ' ' ' populations, such as people experiencing houselessness (see Chapter 04: Existing Social Resources). What is lacking is the physical infrastructure and wayfinding that supports the existing social infrastructure opportunities. Successful Figure 3.14 Cadence of urban design trends include providing networks or physical Amenities Diagram arteritis that connect people, neighborhoods, and resources that might otherwise remain divided (Klinenberg 2018). On a large metropolitan scale, New York City’s subway system is an example of this. Subway travelers have formed “transient -------------" ~ Jb IES" WATER BIKE REPAIR STORAGE SEATING WAYFINDING SHADE LIGHTING FRUIT TREES RESTROOMS BIKE AND WALK FOUNTAIN STATIONS LOCKERS TRANSPORT 43 Chapter 03 communities” as they commute on a crowded train “help[ing] passengers learn to deal with diff erence, density, diversity, and other people’s needs. It fosters cooperation and trust. It exposes people to unexpected behavior and challenges stereotypes about group identity” (Klinenberg 2018, p. 18). This phenomena can be applied to a smaller, natural artery of a city like a river or creek to act as a physical connection to existing social and natural resources in the community as well as provide a social infrastructure through bike and walk transit as well as gathering. Much like non-human species need habitat corridors and patches, this artery can also act as a corridor of amenities for human users. Supplementing wayfinding and connections to existing resources, a cadence of amenities can be developed on this social artery through a city. This corridor can be centered around a natural physical feature such as Amazon Creek that runs through the urban core of Eugene and currently acts as a major transitory corridor for all members of the community. Amenities included in this cadence can be seen in Figure 3.15. A cadence of amenities allows these resources to be evenly distributed throughout a city’s multiple neighborhoods, no matter the demographics. Figure 3.15 Amenities for Public Space Design WATER BIKE REPAIR STORAGE SEATING WAYFINDING SHADE LIGHTING FRUIT TREES RESTROOMS BIKE AND WALK FOUNTAIN STATIONS LOCKERS TRANSPORT CADENCE OF AMENITIES 44 DESIGN STRATEGIES | OVERVIEW Building Urban Food Forests as Novel Ecosystems High density planting for sooner and Fruit or nut palpability when eaten raw, more accessible yields without special preparation Multi-story production with multi- Open harvest of food forest functional species Partner with local communities for Use of food producing perennials maintenance throughout the whole site Developing a Cadence of Amenities Evenly distributed amenities Space for programmed and passive social activities Spatial design and Environment WATER BIKE REPAIR STORAGE SEATING WAYFINDING SHADE LIGHTING FRUIT TREES RESTROOMS BIKE AND WALK FOUNTAIN STATIONS LOCKERS TRANSPORT 45 Chapter 03 Re-Imagining Urban Waterways as Social and Ecological Arteries De-channelize water into natural, Daylight culverts and demolish pavement meandering rivers and streams Slow water flow to allow for understory Articulate a spatial concept shrubs and riparian habitat to establish Improve access and interaction with Absorptive edges through filtration water gardens and bioswales Re-frame hydrologic systems for Multi-scale and Multi-Use Approach ecological performance and public interest      DESIGN STRATEGIES 46 04 STUDY AREA Eugene, OR Existing Social Resources Amazon Creek Design Scope 47 “[...] parks provide the necessary room for contest and struggle that allow people an opportunity to produce their own meanings and uses for public space. Whatever their flaws, parks remain among the most reliable places we have for the unscripted interactions that oil the creaky machinery of democratic social life.” -John Beardsley, 2007 48 EUGENE, OREGON Eugene is located on the traditional indigenous homeland of the Kalapuya people, many of whom are now citizens of the Confederated Tribes of Grand Ronde and the Confederated Tribes of Siletz Indians. Eugene sits at the southern end of the Willamette Valley in Lane County with a population 165,997 individuals in 2018. Being a college town hosting the University of Oregon, home ownership is 47.9%. Eugene and, like a lot of other cities and states, suffers from lack of affordable housing with the cost to buy a house rising 73% in the last 20 years and rent prices up by nearly 50% (Eugene, OR Census Place 2020). As recent as January 2021 the average rent for an apartment in Eugene is $1,405 per month with an expected increase each year (Eugene, OR Rental Market Trends 2021). For a family to affordably rent a two-bedroom apartment and still have funds for other needs, they must earn around $23 an hour (Adams 2019). And for families or individuals who have no other financial choice but to rent, they are required to keep up with increasing rent prices that eventually become inaccessible. Eugene has an interesting social landscape with a very wide range of median household income, and at the same time many people experiencing homelessness. Lack of affordable housing is one of the leading causes of homelessness and in 2019. Eugene ranked number one in the country for people experiencing homelessness per capita (Turner et al. 2019). Spatially, as seen in Figure 4.1, Amazon Creek in the urban core is directly surround by the two lowest brackets of median household income. Additionally, the urban core is where the highest concentration of people experiencing homelessness occupy. Amazon creek currently acts as a divider of Eugene, physically and socially. 49 Chapter 04               Eugene, OR Apartment Rent Ranges Eugene, OR Occupied Housing Units • < $500 1% 0 • $501-$700 1% • Renter-occupied 48% • Households $701-$1,000 10% • • Owner-occupied 51% $1,001-$1,500 62% Households • $1,501-$2,000 17% • > $2,000 10% Figure 4.1 Eugene’s Median Household Income in 2019 inflation adjusted dollars (data source: data.census.gov) Figure 4.2 Eugene’s Apartment Rent Ranges (image source: Data from the Census Bureau ACS 5-year Estimate) Figure 4.3 Eugene’s Occupied Housing Units (image source: Data from the Census Bureau ACS 5-year Estimate) EUGENE, OREGON 50 EXISTING SOCIAL RESOURCES White Bird Clinic “White Bird is a collective environment organized to enable people to gain control of their social, emotional and physical well-being through direct service, education, and community. White Bird provides compassionate, humanistic healthcare, and supportive services to individuals in our community, so everyone receives the care they need.” White Bird provides substance abuse and mental health care services, counseling, crisis service center, dental clinic, and many other services. Cahoots Cahoots, an extension of White Bird, is a mobile crisis intervention van in Eugene that responds to non-criminal situations including substance abuse, welfare checks, and dispute facilitation. St Vincent De Paul: First Place Family This day center provides resources for houseless or low- income families such as showers, laundry, preschool, meals, emergency night shelter, and much more. “First Place Family Center is a refuge and place of support for children and their families who are low income, at risk of losing their housing or are already in transition between homes due to job loss, health issues and other critical problems.” ShelterCare © ShelterCare is a private, non-profit human-services agency run and directed by volunteers offering housing and support services for individuals or families who are homeless, or on the verge of homelessness, with a committed focus on individuals living with mental illness. with mental illness. 51 Chapter 04 Eugene Mission Eugene Mission’s goal is to “provide holistic long-term solutions that lead to the long-term wellness of our guests.” They provide rescue shelter and meals all while building relationships with guests and providing life skills and tools for the future. Hosea Youth Services Project®@@(i) “Helping the at-risk and homeless youth of Lane County, ages 16-24, create and sustain healthy lives away from the streets.” Community Supported Shelters © CSS’s mission: “Fostering opportunities for community development and safe, functional shelter for those experiencing homelessness.” They oversee multiple Safe Spot Communities throughout Eugene. Safe Spot Communities are legal designated places for people who are without a conventional form of housing. Each of these sites focuses on a different demographic, people with disabilities, a site for veterans, and another site for a mixed population. The number of sites continues to grow. Warming Center Warming Center is a homeless shelter hosted in First Christian Church. They provide a place to sleep and hot meals. Geographically, as seen in Figure 4.4, Eugene’s community resources are distributed throughout Eugene. These resources provide many tangible and social benefits to the community, especially for individuals experiencing homelessness. However, the physical infrastructure to navigate to these services is lacking and not accessible. There is potential to use Amazon Creek as a transitory corridor and wayfinding navigation tool to connect the community to the many social resources Eugene provides. EXISTING SOCIAL RESOURCES 52  „    0       „ƒ      {)   „   •    •• -- r --  W l illame  t.A-    te Ri  ver T     Am - - - .:.-==._a. -z_ _o__ n Cree I I --- -=-k;.=-- -;...~~. . •   W 18TH AVE ' t I_ I I I -  ‚ƒ  ƒ I .l 1 , ­   I E 24TH AVE      / ) Amazon Park    €  \ ,' \) ) I i I / Figure 4.4 Existing Social Resources   53 Chapter 04 CHAMBERS ST ADAMS ST WILLAMETTE ST  „          „ƒ        „        W il  lame  t   te Ri  ver     Amazon Creek   I I W 18TH AVE  ‚ƒ   ƒ  I I ­  j j_  • E 24TH AVE      Amazon Park    €  I I •   EXISTING SOCIAL RESOURCES 54 CHAMBERS ST ADAMS ST WILLAMETTE ST AMAZON CREEK Existing Conditions Amazon Creek, located in Eugene, Oregon, stretches almost 12 miles from the south hills to the West Eugene Wetlands and Fern Ridge Reservoir. The creek receives most of the city of Eugene’s stormwater. 93% of the land that drains into the creek lies within the Urban Growth Boundary (UBG), as seen in Figure 4.6. The portion of Amazon Creek on which this project focuses spans from 33rd Ave north to 18th St where it turns west and continues to Oak Patch Rd. To mitigate flood risk for the urban core of Eugene, Amazon Creek was channelized in the 1950s from 33rd Ave to Fern Ridge Reservoir. The dense commercial and residential area from Amazon Parkway to Jefferson St was additionally channelized with a concrete- walled channel to further improve flood conveyance in the urban core. The existing conditions of the concrete channel can be seen in Figure 4.5. ~ ,,------ I           1 inch = 20 feet Figure 4.5 Existing conditions of channelized portion of Amazon Creek 55 Chapter 04 Urban Growth Boundary Amazon Creek Willamette River ~ Amazon Drainage Basin of the Amazon Creek Drainage Basin is C) within the UGB Figure 4.6 Amazon Drainage Basin AMAZON CREEK 56 Vegetation The channelizing of Amazon Creek has caused a significant decrease in quantity and quality of riparian plant communities. The headwaters in the south hills provide the only example of a successful, intact riparian forest with a native canopy and understory. This well-developed native community provides high resource value by shading the creek causing cooler water temperatures for aquatic organisms. From 30th Ave to 24th Ave Amazon Creek meanders through Amazon park with three large ash groves, native wet prairie areas, and a patch of the federally endangered species Bradshaw’s lomatium (Lomatium bradshawii) just south of 19th Ave. Moving northwest along the creek we see the lack of vegetation and soil caused by the channelization leading to very low habitat value. The concrete channels and large amount of impervious surface surrounding the creek from 19th Ave to the Jefferson St doesn’t allow for any natural riparian vegetation to grow. This causes a large gap in species habitat from Amazon Park to Oak Patch East, as seen in Figure 4.7. Implementing green infrastructure strategies along Amazon Creek through the urban core will provide potential habitat patches and corridors (Holts et. Al 2014). Water Quality Lack of mature vegetation throughout the urbanized creek and low water levels not only increase the water temperature but also causes lethal conditions for fish and other aquatic species. Approximately 1/3 of the Amazon drainage basin is impervious surfaces leading to high peak flows, increased erosion, and high sediment levels. Run-off from these impervious surfaces contains non-point pollution from urban development. The low water quality throughout Amazon Creek is violating the Department of Environmental Quality Standards. Overall, the high-water temperatures caused by lack of vegetation do not support any aquatic species. For water quality to improve, the temperature of the water needs 57 Chapter 04 POTENTIAL Habitat Patches - Habitat Corridors EXISTING ~ Wetland Designated for Protection - Significant Riparian Corridor Amazon Creek - Parks ~ Habitat Patches Figure 4.7 Existing and Potential Ecological Hotspots Data Source: Goal 5 Water Resources Conservation Plan AMAZON CREEK 58 to decrease through shading and less concrete with more absorptive edges. (Holts et. Al 2014) Transitory Corridor Currently, there exist two major non-vehicular paths along Amazon Creek, the Fern Ridge path beginning/ending at Jefferson Park and traveling out to the West Eugene Wetlands and the Amazon Trail beginning/ending abruptly at 19th Street, running through Amazon Park and connecting with Ridgeline Trail System. There is a gap waiting to connect these two heavily trafficked trails through the urban core along Amazon Creek from 19th St to Jefferson Park. These trails currently act as a heavily trafficked public pathway, specifically for members of the community experiencing homelessness. This was a key reason for Amazon Creek as the site selection. It currently acts as a corridor for some of Eugene’s vulnerable populations, yet it has much more potential to serve people experiencing homelessness. Spatial and Soical Narrative Through the research of Elizabeth Stapleton on the social narrative of the Amazon Creek, she discusses the ways in which water has affected the spatial justice in urban Eugene (2020). As mentioned, in the 1950’s Amazon Creek was channelized by the Army Corps of Engineers to alleviate flood in the urban core. However, even prior to this, it was seen as a forgotten landscape. Channelization efforts of dredging and straightening have been implemented for the last century, with the earliest in 1902. Due to this physical constriction, Amazon Creek has experienced little to no programmatic use. This relationship, or lack thereof, with Amazon Creek and Eugene community members degrades the human nature relationships in urban environments. This lack of care and attention contributes to the urban stream syndrome, which perceives urban environments as unnatural and unworthy of preservation (Stapleton 2020). 59 Chapter 04 CIRCULATION Fern Ridge Path Amazon Trail Potent ial Connection HABITAT Wetland Designated for Protection Significant Riparian Corridor - Amazon Creek Parks C=:J Existing Habitat Patches Potent ial Habitat Patches Potent ial Habitat Corridors Figure 4.8 Fern Ridge Path and Amazon Trail along Amazon creek with the gap between the two shown in the dashed line. AMAZON CREEK 60 There is an unfortunate link between restoration and development along parts of Amazon Creek, contributing to an unjust spatial narrative. Efforts of restoration or improvement are distributed unevenly across different regions of the creek, with a large contrast between the southern and western regions. These different regions of the creek are discussed very differently. The headwaters, in the southern region, are home to the most natural riparian habitat along Amazon Creek. As the creek runs north towards the urban core and turns west towards industrial west Eugene, it differs drastically from the natural meandering creek in the south. It is more polluted and primarily surrounded by heavy industrial and commercial uses. Additionally, west Eugene hosts more multi-family housing and a lower median household income than south Eugene, as seen in Figure 4.1. This drastically changes the perception of Amazon Creek based on location. The south is perceived as more natural and contributing to an open space network. In contrast, the west is viewed as unsafe, less desirable, and unnatural, focusing on the human users of the space rather than natural amenities (Stapleton 2020). Design Scope Following site analysis, I selected three sites along Amazon Creek that not only provide opportunity to apply the three design strategies, but also show a need for such interventions. The three sites, seen in Figure 4.9, include the land surrounding St Vincent De Paul: Family Day Center between 24th St and South Eugene High School, Jefferson Park and the land South of Lane County Events Center, and Oak Patch East and Berkeley City Park. 61 Chapter 04 - SITES St Vincent Depaul's First Place Family Center Trail Connection - Jefferson Park - Oak Patch East CIRCULATION Fern Ridge Path Amazon Trail Potential Connection HABITAT c:::::::J Wetland Designated for Protection - Significant Riparian Corridor - Amazon Creek Parks c:::::::J Existing Habitat Patches Potential Habitat Patches Potential Habitat Corridors Figure 4.9 Design Scope, introducing three site selections and trail connection for design intervention AMAZON CREEK 62 05 DESIGN Social and Ecological Artery Site 1: Learn Site 2: Harvest Site 3: Share 63 “Water infrastructure is more than just pipes, conduits, and tunnels - it is the often-invisible skeleton of a city.” -Sarah Dunn and Martin Felsen, 2007 64 APPLYING DESIGN STRATEGIES 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • 0 0 0 0 0 0 0 0 0 0 0 0 0 • • 0 • • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • • • 0 0 • • 0 0 0 0 0 0 0 0 0 0 0 0 0 • • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • • • • • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 • • 0 0 0 0 • • 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 URBAN FOOD FOREST 0 0 ... -.. "' .. ~ ' ' .. -... - ......... , , , ,, ' , ' ' , , ' ' , ' ........ ' ' ' , , ' .... - .. -... ' ' ..... ___ _ ' ' ' ' URBAN WATERWAY ' ,' 65 Chapter 05 , , , , ,',, ,,I ,,, ------- CADENCE OF AMENITIES Figure 5.1 Applying Design Strategies to Amazon Creek The design strategies were established to allow for transferability across sites and context. However, this does not come without its’ restrictions and challenges. Landscape design strategies cannot be a universal, one-size fits all prescription. The site analysis discussed in Chapter 04, helped decipher how these design strategies can be applied to Amazon Creek. This chapter is organized as such: discussion of overall spatial design concept, urban design proposal of a social and ecological artery, a trail connection strategy, followed by site designs for each of the three sites. SOCIAL AND ECOLOGICAL ARTERY 66 DESIGN CONCEPT The design strategies discussed in Chapter 03 led design decisions over the social and ecological network for the trail connection as well as each of the three sites. These strategies further developed into a design concept to spatially organize all the elements of each site. Combining the current and proposed elements of the water, circulation and vegetation, the proposed concept explores the contrast between a natural meander of a creek and the traditional gridded nature of orchards or productive landscapes, as seen in Figure 5.2. These two spatial patterns come together to form the Meandering Foodscape. This spatial concept is applied to a design proposal for each site through their unique programmatic elements of learning, harvesting, and sharing. Each design proposal is discussed through SPUR and Gehl’s facets to coexistence in public space which are spatial design and environment, operations and maintenance, program and activation, rights, rules, and accountability. The site’s program and immediate context decipher how I address each of these facets through the design strategies of urban food forests, urban waterways, and a cadence of amenities. Social and Ecological Artery I began the design process at an urban design scale looking at Amazon Creek as a potential social and ecological artery connecting Eugene. In addition, to connecting Amazon Trail and the Fern Ridge Path, there is a proposed improvement of bike and walk infrastructure along the dashed lines seen in Figure 5.3. This network connects to Eugene’s existing social resources using Amazon Creek as the spine of these connections. This improvement of infrastructure for bikers and walkers, rather than cars, will help with wayfinding and a sense of place for those who travel through Eugene on foot or bike. It also connects neighborhoods of Eugene that currently sit Figure 5.2 Design divided. Concept 67 Chapter 05 MEANDER 0 0 00000000000000 00000000000000000000 0000000000000000000000 00000 00000000000000000000000 0000000000000 000000000000000000000000 000000000000000 00000000000000000000000000000000000000000 0000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000 0000000000 0000000000000000000000000000 00000000000000000000000000 000000000000 0000000000 000000000 0000000 ORCHARD GRID 0000000 00000000 00000000 0000000 00000000 0000000 000000 0000000 0000000 000000 CIRCULATION MEANDERING FOOODSCAPE SOCIAL AND ECOLOGICAL ARTERY 68 SHARE 0 1/ 2 mile lmile Figure 5.3 Urban design scale interventions 69 Chapter 05 HARVEST LEARN TRAI L CONN ECTION SOCIAL AND ECOLOGICAL ARTERY 70 SOCIAL AND ECOLOGICAL ARTERY Trail Connection Both Fern Ridge Path and Amazon Trail begin/end abruptly, as discussed in Chapter 04. I first propose to connect the two with a walk/bike trail along Amazon Creek. Features of this trail connection will include separate bike and walk lanes, a cadence of amenities such as drinking fountains, wayfinding, bike repair, etc. The reason there is not an existing connection between Fern Ridge Path and Amazon Trail along Amazon Creek is that it runs through private commercial and residential properties. Also, it is not pleasant to be near. The alignment and format of the trail connection will depend on it’s surrounding properties and buildings. If it is a mixed- use block, which is currently a parking lot, the trail will run alongside the creek, shaped by water filtration gardens and bioswales that filter rainwater and runoff before it enters the creek through the outflow pipes, as seen in Figures 5.10 and 5.11. There are a couple blocks between Lawrence and Jefferson St where the channelized creek runs between private backyards. For this stretch of the trail a slightly narrower, elevated path will run over the creek with dense vegetation on either side, maintaining privacy for the residents, as seen in Figures 5.12 and 5.13. This elevated trail will also help shade parts of the creek, cooling water temperatures in otherwise extremely exposed environments. Throughout the trail connection, there are several opportunities where there is left over space between the creek and a sidewalk, back yard, etc. that will transform to a bioswale adding more vegetation to the corridor, as well as filtering rainwater and run-off. Figure 5.4-5.9 Trail Connection Existing Conditions (photos by author) 71 Chapter 05 MIXED-USE ADJACENT   Bioswale Seating Bioswale Amazon Creek Trail Amenities varies 18' 16' varies Figure 5.10 Axon of trail connection with Mixed-Use buildings adjacent Figure 5.11 Section of trail connection with Mixed-Use buildings adjacent 73 Chapter 05 SINGLE FAMILY HOMES ADJACENT   Private Backyard Amazon Creek Private Backyard va ri es 18' varies Figure 5.12 Axon of trail connection with single family homes adjacent Figure 5.13 Section of trail connection with single family homes adjacent SOCIAL AND ECOLOGICAL ARTERY 74 Site 1: St. Vincent De Paul First Plance Family Center Existing Conditions The first of the three sites is between 24th and 19th St along the beginning of the channelized portion of the Amazon Creek, as seen in Figure 5.21. Immediate context of the site includes St. Vincent De Paul: First Place Family Center, a community facing day center providing services to un- housed and low-income families, see Chapter 4: Existing Social Resources for more information, and South Eugene High School, as seen in Figure 5.20. Currently, The St. Vincent family center is very exposed to Amazon Parkway and is very closed off from Amazon Creek. It is surrounded by land that has much more potential to serve the families and employees of the family center. The creek is almost hidden on the site in concrete channels and a chain link fence. There is one bridge crossing the creek that is the only connection to the water on the whole site. This portion of the creek also lacks any sort of riparian buffer, other than the federally endangered Bradshaw’s lomatium just south of the family center, and the water is extremely exposed to urban conditions. All parcels on this site are currently zoned as public land and owned by Eugene 4J School District and the City of Eugene. More visual and spatial existing conditions can be seen in Figures 5.14- 5.21. Figures 5.14-5.19 Site 1 Existing Conditions Photos (photos by author) 75 Chapter 05 EXISTING CONDITIONS Vehicle Circulation •••• Amazon Trail - Amazon Creek Figure 5.20 Site 1 Existing building and land use Figure 5.21 Site 1 Existing Conditions Air Photo 77 Chapter 05 Spatial Design and Environment The first design strategy I propose is to de-channelize this portion of the creek to develop a natural meander. Along with this natural meander, the Amazon Trail will mimic a meander in weaving pattern with the creek. Following the spatial concept of Meandering Foodscape, public orchards will be placed south of the day center and high school. Amazon Creek, especially in this section, suffers from lack of riparian buffer due to the concrete channel and urban conditions. The riparian buffer will be expanded to not only improve water quality and provide habitat, but also to provide a buffer from the traffic on Amazon Parkway, as seen in Figure 5.22 and 2.24. In addition to the riparian buffer expansion, the path of Bradshaw’s lomatium will continue to be protected and expanded along the creek. After speaking with an employee of St. Vincent De Paul, I gathered key design moves that would be helpful for employees and community members that access the day center. One of the biggest desires from these users is a more privatized parking lot. The parking lot currently sits right along Amazon Parkway and is extremely visible to vehicles driving by, people waiting at the bus stop, and even from the parking lot of the new YMCA Kids Sports Center across the street. A common stigma surrounding people experiencing homelessness living out of their car is messy-ness. Sometimes cars are filled with every belonging someone owns which can become crowded and not something you want on display. Proposing to screen the parking lot with vegetation is a simple way to create a sense of privacy to a lifestyle that is otherwise very public. Lastly, I propose an amenity hub with restrooms, bike repair station, seating, storage lockers, and shade on the corner of 19th and Amazon Parkway. SITE 1: EXISTING CONDITIONS 78 MEANDERING FOODSCAPE | Learn 0 100' I Figure 5.22 MEANDERING FOODSCAPE | Learn Cadence of Amenities Restrooms, Fruit Trees, Bike Repair, Storage Lockers, seating, water fountain, lighting Space for community programmed and passive social activities Bike and Walk Transport, Wayfinding I -I Urban Waterway De-channelize water into natural, meandering rivers and streams Slowing water flow to allow for understory shrubs and riparian habitat to establish Articulate a spatial concept Improved access and interaction with water Demolishing Pavement Absorptive Edges through filtration gardens and bioswales Figure 5.23 Design Strategies implemented at Site 1 81 Chapter 05 Urban Food Forest High density planting for sooner and more accessible yields Use of food producing perennials throughout the whole site Partner with local organizations for learning, harvest, and maintenance SITE 1: LEARN 82 MEANDERING FOODSCAPE | Learn Operations and Maintenance The proposed programmatic concept of this site is Learn, therefore operations and maintenance of the orchards will be accomplished through learning opportunities. While both orchards will be open to public harvest, the day center and South Eugene High School will lead and oversee maintenance and harvesting operations through learning opportunities with their users, families and students, as well as the community. Program and Activation South Eugene High School and St. Vincent’s Family Center inspired the programmatic concept of Learn. The Day Center serves families, which means it hosts a lot of programming for children. There is currently a play set located in a very small fenced in portion along the creek. They desire a larger open area for kids to run around that is still fenced or screened in, to prevent children from wandering far near the busy intersection of 19th St and Amazon Parkway. RIPARIAN SPECIES Salix spp. | Willow Rhamnus purshiana | Cascara Buckthorn Crataegus douglasii | Douglas Hawthorn Sambucus caerulea | Blue Elderberry Spirea douglasii | Douglas Spirea Figure 5.24 Diagram of Philadelphus lewisii | Mock Orange Riparian Buffer before Physocarpus capitatus | Pacific Ninebark and after Cornus sericea | Red-Twig Dogwood Alnus rhombifolia | White Alder Figure 5.25 Design Populus trichocarpa | Black Cottonwood interventions for Fraxinus latifolia | Oregon Ash Amazon Trail 83 Chapter 05 Concrete Channelized Creek Absorbative Edges i ' MEANDERING FOODSCAPE | Learn Moving the enclosed play area to the north side of the building will provide more space for the children as well as open an opportunity for an improved connection to the creek. The play area will be enclosed through a combination of vegetation and fencing and host a play set, open space, and some community garden plots for families that access the day center. Opening the space behind the building will allow for a unique connection between the happenings inside the day center with the natural creek, as seen in Figure 5.26. South Eugene High School will have orchards, vegetable gardens, and an outdoor classroom to host urban farm programming through classes and organizations. This will not only activate the space but also will contribute to maintenance and harvesting of the productive land. Teaching students about urban farming practices broadens their horizons to where food can come from and possibly contribute to more sustainable and local future food consumption practices. Throughout the rest of the site, the program will include recreation along Amazon Trail and connections to the water. The new trail will continue the aesthetic nature of Amazon Trail to the south, allowing for simultaneous transit, recreation, and exploration. Rights, Rules, and Accountability All public space needs realistic standards to be met to ensure successful activation and use of the space. The school orchards will be open from dawn until dusk. The day center play area will be open during their operating hours and the amenity hub open 24/7. Figure 5.26 Design interventions for the Family Center and Amazon Trail along Amazon Creek 85 Chapter 05 AMAZON TRAIL HEADING 86 AMAZON CREEK Site 2: Lane Events Center and Jefferson Park Existing Conditions The second site is located at Jefferson City Park. This site was chosen for multiple reasons: it is where the Fern Ridge Path abruptly begins/ends at 15th and 16th Ave, as seen in Figure 3.33. Just north of the site is Lane Events Center, a public facing space that has served the community through COVID and the recent 2020 wildfire season. Also, to the north of Jefferson Park and the creek are warehouse buildings hosting ski swaps and other commercial uses. Lastly, what is currently Jefferson Park, the piece of land south of the creek is significantly under-utilized, as seen in Figure 5.34. The main use of that space is during fair season for excess parking or displays of logging equipment during another annual event. Surrounding the site to the south is single-family residential homes and O’Hara Catholic School. While there is a small riparian community along the creek, it is very narrow and doesn’t allow for interaction of the water. There are a couple bridges across the creek and only connect with private entrances to the warehouses. The two parcels that make up this site are both zoned public land and owned by Lane County and the City of Eugene. This space has much more potential to serve its local ecologies and community. More visual and spatial existing conditions can be seen in Figures 5.27- 5.34. Figures 5.27-5.32 Site 2 Existing Conditions (photos by author) 87 Chapter 05 HEADING 88 EXISTING CONDITIONS ~ Community Park/Sports Field Rink Exchange Pedestrian Circu lation •••• Fern Ridge Path Vehicle Circulation - Amazon Creek Jefferson City Park Figure 5.33 Site 2 Existing Conditions building and land use Figure 5.34 Site 2 Existing Conditions Air Photo 89 Chapter 05 Spatial Design and Environment Through the continuous concept of Meandering Foodscape, the production of food will be celebrated through public space and harvesting as a communal activity. As seen in Figure 5.35, a natural meander is restored to the creek to create a new and unique definition of space. I propose an improved riparian buffer and program of Harvest. Much of the will be an urban food forest and public orchard. Complimenting these will be public crops and a community garden that serves the immediate neighborhood through individual plots. Near the community garden, I propose a pavilion to allow for community gathering and events. Along the new meanders there will be access points down to the water to improve our interactions and perception of Amazon Creek. With some points very accessible to the creek, others will be inhabited by green infrastructure strategies such as bioswales to clean run-off before entering the creek. These processes will still play into an improved perception of the local creek ecology. Lastly, this site will have an amenity hub at the end of 16th Ave with restrooms, bike repair station, water fountain, seating, and shelter from the rain. Operations and Maintenance Productive lands require a lot of hard work and maintenance to allow continued successful harvests and yields. This site will be overseen by a live-in caretaker. While the entire food forest will be public, the caretaker will oversee maintenance and coordinate with community organizations that will provide programming and volunteer hours through harvesting and maintenance. The caretaker will live in a home on the east end of the site between 15th and 16th St, as seen in Figure 5.36. SITE 2: EXISTING CONDITIONS 90 MEANDERING FOODSCAPE | Harvest Fig9u1 re 5.C3h5apter 05 MEANDERING FOODSCAPE | Harvest ): L MEANDERING FOODSCAPE | HARVEST 92 Cadence of Amenities Restrooms, Fruit Trees, Bike Repair, Wayfinding Space for programmed and passive social activities Bike and Walk Transport t I ,;. I I t Urban Waterway De-channelize water into natural, meandering rivers and streams Slowing water flow to allow for understory shrubs and riparian habitat to establish Articulate a Spatial Concept Improved access and interaction with water Re-framing of hydralic systems for ecological performanceand public interest Absorptive Edges through filtration gardens and bioswales Figure 5.36 Design Strategies implemented at Site 2 93 Chapter 05 ,.#2"- Urban Food Forest High density planting for sooner and more accessible yields > Multi-story production with multi-functional species Use of food producing perennials throughout the whole site Fruit or nut palpability when eaten raw, without special preparation Open harvest of food forest and public orchard Partner with local communities for harvest / SITE 2 : HARVEST 94 MEANDERING FOODSCAPE | Harvest Program and Activation With the proposed theme of Harvest, programming and activation of the space will center around harvesting on the productive land as a community. This will happen through workshops hosted by local organizations that will contribute to maintaining the land as well as teaching the community how to harvest these specific productive plants. This proposal includes open harvest on the food forest, orchard, and vegetable crops. The buildings on the north side of the river are currently used for flea markets and ski swaps. These buildings will transition to also host rotating workshops such as pruning, and cooking classes based on the lands produce and season. Rights, Rules, and Accountability While the main goal of this work is to celebrate public harvest, that comes with the need to protect the space from undesirable events or intrusions. The areas of vegetable crops and community garden will be fenced in and closed from dusk to dawn. These plants and design of the spaces will be most susceptible to animal or pest intrusion. The food forest and public orchard will re-main open with the hope that the amenity hub near by will provide the resources for any human users looking for a restroom or an overheard shelter from rain. Through signage, ongoing community workshops, and conversation, acceptable behaviors will be learned for harvesting and co-existing on public land. The proposed urban food forest plant list seen in Figure 5.49 was created based on Clarks and Nicholas’ Climate-Food- Figure 5.37 Urban Species matrix, seen in the Appendix, and Oregon native Food Forest and Public Orchard food producing species. It is divided into categories based on 95 Chapter 05 HEADING 96 URBAN FOOD FOREST CANOPY Malus domestica | Apple Pyrus communis | European Pear Morus alba | White Mulberry PUBLIC ORCHARD Morus nigra | Black mulberry Diospyros virginiana | Common Persimmon LOWER CANOPY/ORCHARD Malus domestica ‘Gala’ | Semi- SHRUB Dwarf Apple Vaccinium angustifolium | Lowbush Blueberry Prunus cerasus | Sour Cherry Vaccinium corynbosum | Highbusy Blueberry Pyrus pyrifolia | Asian Pear Vaccinium membranaceum | Black Huckleberry Lycium barbarum | Goji Berry Vaccinium ovatum | Evergreen Huckleberry Prunus armeniaca | Apricot Amelianchier alnifolia | Serviceberry Ficus carica | Fig Rubus spectabilis | Salmonberry Prunus cerasifera | Cherry Plum Rubus parviflora | Thimbleberry ✓ ... - -.l ~ - C 1 :r:: ~ GROUND COVER I o... Fragaria vesca | Alpine Strawberryw Fragaria chiloensis | Beach Strawberry 18 Fragaria vesca | Woodland Strawberry 0: z 0: 97 w I LL Beacon Food Forest’s planting categories. This list is a starting point for Oregon based projects. Transferability of these design strategies will require re-working of the plant list based on local natives. Seasonality is an important consideration when selecting plants for public landscapes to ensure harvesting time can vary slightly for longer seasons of production and enough manual labor is available to successfully collect all the yields. Various bloom and fruiting time for this plant palette can be seen in Figure 5.39. Figure 5.38 Site 2 Section and Plant Palette 9988 FERN RIDGE PATH ~ 1, AMAZON CREEK ~ ~ ~1 SEASONALITY Ma/us domestica I Apple Pyrus communis I European Pear Prunus cerasus I Sour Cherry Prunus armeniaca I Apricot Ficus carica I Fig Lycium barbarum I Goji Berry Vaccinium angustifolium I Lowbush Blueberry Amelianchier alnifolia I Serviceberry Rubus parviflora I Thimbleberry Fragaria vesca I Woodland Strawberry JAN FEB MAR APR MN 99 Chapter 05 - {j HARVE ST - -- 10 ( I> -- -- 8 ,..-... Cf) Q) - v - ..c - u - - C / '--" ' / -- 6 C 0 :Ill• - - - -/ ·_.::::; - co -- :t:: - - 0... u,._ / -- 4 Q) Q_ V Q) - -- 0) ,c._o ~ Q) > ~ -- 2 <( V ------__,/ ---------...- -.-- { JUN JUL AUG SEP OCT NOV DEC Figure 5.39 Seasonality of Plant Palette SITE 2: HARVEST 100 Site 3: Oak Patch East and Berkely City Park Existing Conditions The third and final site is the most distant and disconnected from existing social resources in the urban core and fresh food options. Additionally, according to Figure 4.1 in the Chapter 04, this area has some of the lowest median house- hold income in Eugene. The land surrounding the Amazon Creek at this site is significantly more impervious than other parts of Eugene. There is a need for more filtration of urban stormwater runoff entering the creek. On this impervious land to the north is W 11th St, a high traffic bus and vehicular route travelling into or out of Eugene with a lot of big-box commercial stores or industrial businesses. Multi and single- family residential neighborhoods surround the site to the south. Berkeley City Park is also a part of this site. The park has a playground and basketball courts, that are frequently used by surrounding neighborhoods. The rest of the site sits as open, underutilized lawn space with little to no interaction with the creek. Fern ridge Path travels through the site along Amazon Creek, connecting downtown with west Eugene neighborhoods. Like the second site, there is a small riparian community. This site provides unique opportunities to fill in those ecological and social gaps. The three parcels that make up this site are either zoned low-density residential, medium- density residential, or public land. The public land parcel is owned by the City of Eugene, while the residentially zoned parcels are owned by EDCO Properties. More visual and spatial existing conditions can be seen in Figures 5.40- 5.47. Figures 5.40-5.45 Site 3 Existing Conditions (photos by author) 101 Chapter 05 HEADING 102 EXISTING CONDITIONS Oak Patch East Figure 5.46 Site 3 Existing Conditions building and land use Figure 5.47 Site 3 Existing Conditions Air Photo 103 Chapter 05 Spatial Design and Environment After learning and harvesting, the third site in the Meandering Foodscape network will be centered around sharing. This space will offer not only more opportunity for productive land, but also will lay the foundation for a distribution system, moving the fresh food produced on all these sites to the residents and people experiencing homelessness in the community. Continuing the naturalistic meander of the creek from site 2, the Fern Ridge Path will continue along an improved riparian buffer and green infrastructure implementation of bioswales. Due to the abundant impervious surfaces on the north side of the creek, I propose less human occupied spaces and more filtration gardens and bioswales, while still connecting to W 11th St, a highly trafficked bus route. Just south of the creek there will be two large overhead structures to host organized or pop-up markets selling and distributing the produce harvested from any of the three sites. When markets are not taking place, the structures will be used as a gathering space. Adjacent to the open structures will be public orchard, community garden plots, and a community park that will allow for spill over from market events and retaining open green space for the neighborhood from the park that exists there currently. Additionally, there will be a proposed outdoor kitchen near the amenity hub to allow for outdoor cooking and preparing of harvested food. Operations and Maintenance Out of all three sites, this third site will require the least amount of productive land and will require the least amount of maintenance in terms of harvesting. The outdoor kitchen will be regularly cleaned and maintained by the parks department. SITE 3: EXISTING CONDITIONS 104 MEANDERING FOODSCAPE | Share ) ~ Fi1g0u5re 5.C4h8apter 05 MEANDERING FOODSCAPE | Share MEANDERING FOODSCAPE | SHARE 106 Cadence of Amenities • > ::/ Restrooms, Fruit Trees, Bike Repair, Wayfind•in g ~<'ect,on to W ~ .. "' G0 1 ,,~ ----- .. ,I '\, "' r-- Satellite locations for White Bird, \, ~,... ~ ~ Kahoots, and other organizations Space for programmed and passive social activities Bike and Walk Transport, connecting to high traff ic bus route Urban Food Forest Strategies High density planting for sooner and more accessible yields Open harvest for public orchard Partner with local communities for distribution Figure 5.49 Design Strategies implemented at Site 3 107 Chapter 05 Re-Imagining the Urban Riparian Network De-channelize water into natural, meandering rivers and streams I Slowing water flow to allow for understory shrubs and riparian habitat to establish ,, ' Articulate a spatial concept Improved access and interaction with water Re-framing of hydralic systems for ecological performanceand public interest Absorptive Edges through filtration gardens and bioswales SITE 3: SHARE 108 MEANDERING FOODSCAPE | Share Program and Activation Regular markets will activate the space hosted by community members and organizations distributing excess yields from sites 1 and 2. In addition to distributing foods, local organizations, such as White Bird or Hosea Youth services, are able to rent out the structures or kitchen to host events or distribute their services to west Eugene community members or people experiencing homelessness. This site allows for the most open-ended program through covered and green open space for the community to share and distribute resources when organized or to celebrate the unscripted interactions between members of the community. Rights, Rules, and Accountability Like the previous two sites, signage, continued use and conversation will guide appropriate harvesting for the productive lands. The kitchen and community garden plots will be closed at night while the overhead structures will remain open. These structures will most likely host people experiencing homelessness at night and provide programming and resources for them and nearby residents in the day. These shared spaces that allow for multiple uses allow us to celebrate our differences as a community. Figure 5.50 Market Space and Community Park 109 Chapter 05 ---./ _,, --, ---- --.,J. ~ -..._ ---- )., r ' ✓ ~)., " HEADING 110 06 REFLECTION 111 “We do not learn from experience ... we learn from reflecting on experience.” -John Dewey 112 REFLECTION With this project, I aimed to develop a toolbox of design strategies to apply to public space design that cohesively improve the ecological and social function of communities. This was done through gathering existing knowledge in urban ecology and public space design and pulling key themes from these concepts to turn into design strategies. The three design strategies I developed are urban food forests as novel ecosystems, re-imagining the urban waterway, and developing a cadence of amenities. Applying these strategies to sites in Eugene, Oregon allowed me to speculate on strengths and weaknesses, or areas for further study, of these design strategies. Strengths It is clear that public space design can complement already existing social resources serving vulnerable populations in the community. People experiencing houselessness rely heavily on public space. In Eugene, there are established organizations serving these communities throughout the city. My design strategy took Amazon Creek, an existing feature currently physically and socially dividing the city and transformed it into a form of connection. I found the combined social and ecological network has strong potential to connect vulnerable communities to social resources, while improving ecosystem services for local ecologies. The strengths of this project include meeting people where they are, creating and supplementing habitat corridors, and improving the ecological and social health of Amazon Creek. Meeting people where they are The banks of Amazon Creek host a lot of people in Eugene experiencing homelessness. The underutilized public space along the creek has potential to serve the community in much more fruitful ways. Having food forests near where people 113 Chapter 06 where people camp provides accessible and nutritional resources for people experiencing homelessness. It also provides opportunities to learn new skills such as harvesting and pruning, as well as partake in a community effort on public land with fellow members of the community. For example, observed near Site 2 on one site visit at one particular time there was about a dozen people experiencing homelessness that could benefit from an open harvest food forest. Habitat Corridors Amazon Creek currently provides little to no benefit for non- human species navigating through the urban environment. With concrete encasing the waters through the urban core, no riparian vegetation is allowed to grow to provide habitat patches or corridors for migrating birds or other species. Connecting the existing trails along Amazon Creek with green infrastructure interventions provides potential for these corridors. Amazon Creek The designs I propose demonstrate the overlapping benefits these three design strategies can have on both the social and ecological health of Amazon Creek. Currently the creek’s temperatures are too high to support any biotic life. Shading strategies such as building a path over the creek and increasing bioswales surrounding the creek provide constructed and natural shading, allowing more plant and animal life to flourish. Additionally, the proposed strategy of de-channelizing the creek to a more meandering form, slows water speeds that benefit riparian plant species. I predict with interventions such as these, it will improve the perception of Amazon Creek to be a healthier natural amenity to the city. Following the proposal of these design strategies along Amazon Creek, I re-visited Ahern’s ABC functions of a stream to move Amazon Creek on the continuum based on the REFLECTION 114 --, ..c bO o\'e, _.- I :i: e 1>--'o'.---Existing Conditions I e Post Design Implementation / _.,----··/ f u cri ~ -------:--- <( 0 0 ·-e E § / :, u.. Vl / / l / -o- - Figure 6.1 ABC Functions of Streams Adapted from Ahern’s continuum of hydrological/stream types and associated abiotic, biotic and cultural functions applied showing Amazon Engineered. linear. sealed. Open. dynamic. meandering. Creek pre and post design isolated, segregated diverse, geomorphologic proposed design. As seen in Figure 6.1, re-imagining Amazon Creek using these design strategies has the potential to drastically improve the abiotic, biotic, and cultural function of the creek. Weaknesses | Areas for Further Study If I had more time, I would develop post-implementation management strategies for the maintenance of these spaces. Productive public space is not a new idea, yet it has not been applied for close to a century in this country. Without continuous knowledge the concept of ongoing maintenance of productive landscapes would be new to most municipalities. Eff orts like urban food forests require not only ample support to implement, but also continued maintenance and operations to keep it, literally and figuratively, alive. Next steps in the project might include gaining a better understanding of specific plant combinations’ maintenance needs to establish a social infrastructure of maintenance. This project could also further benefit from future research on establishing a plan for pest and rodent control while still celebrating open and public harvest. In addition to maintenance and pest control, areas of further study should include broadening the 115 Chapter 06 perceptions of public space beyond recreational and growing upon these design strategies to develop a larger toolkit. Public Space Perception Design strategies discussed in this research require substantial social and political support. Public space is a unique part of any city with opposing forces of open-ended program and many restrictions. “Too much control obviously diminishes the public realm, but a certain amount of control is necessary.” (Allen 2004, p. 13) In order for public orchards and urban food forests to flourish, there is a need for shared understanding of appropriate behaviors and practices, which takes time to establish. Spaces like these require shared accountability from the public, which takes time to be learned. Kit of parts Another opportunity for further study is developing a larger toolkit for converting current open space to more productive space. The transferability of these strategies needs further development if they are to be used on sites of differing density and ecological context. These strategies could also be used as with a kit of parts approach. For example, not all public spaces need to be near an urban waterway to implement components of the urban food forest strategies and vice versa. But rather a larger toolkit can allow planners, landscape architects, and city officials to mix and match public space design strategies to better serve their specific ecologies and social communities. Lastly, as this project discusses vulnerable populations such as people experiencing homelessness, it does not solve the issue of homelessness. What people experiencing homelessness really need are houses. This project aims to address the role of landscape architects as public space designers, and how we can better sculpt our cities to accommodate and provide resources for these vulnerable communities. REFLECTION 116 APPENDIX 117 118 Urban ecology principles developed plantings, and abundant nonnative species. since the field’s 1970s origin (Forman 10. Plant and animal biodiversity is typically 2016, p. 1657-1660) high in neglected sites, and (excluding Bolded are principles used to guide further zoos and botanical gardens) decreases research with more design, planning, management, and/or maintenance. Habitats 11. Numerous low-population-size species, 1. More buildings and tall structures create both especially plantings and recent nonnative more habitats and hazards for organisms. arrivals, coexist with, some common species, 2. Hospitals, veterinaries, zoos, structures with and few highly abundant species. food, and human wastewater greatly enrich 12. Species populations commonly exhibit high microbial diversity and ecology. mortality, so unplanted rich native biodiversity 3. Both rectilinear networks of different largely depends on ‘‘species rain” inputs, form and the arrangement of buildings especially from surrounding semi-natural areas. strongly affect species distributions and 13. Almost all rare native species seem movements. doomed to local extinction due to 4. A concentration of numerous tiny and concentrated human impacts, whereas rare diverse human-made objects creates high nonnative species may disappear, persist, microhabitat diversity. or spread. 5. Trees and shrubs, typically in straight lines along streets and roads, with associated Plants and vegetation animals are increasingly stressed by more 14. Shrubs are commonly limited in abundance, traffic and diverse related pollutants. especially near walkways and public spaces, 6. House plots (lots), street blocks, due to human security concern. neighborhoods, cities, and urban regions 15. Despite considerable tree mortality, dead support relatively different vegetation and trees, branches and logs, along with their associated animals at each spatial scale. associated fauna, are normally scarce due to human removal. Biodiversity 16. Abundant flowers with pollinators commonly 7. Planted native and nonnative species, persist much of the year, due to urban heat along with diverse spontaneous colonizers, and/or gardens and plantings with sequential coexist, interact, and together provide the flowering. benefits offered by limited urban plant 17. Seed dispersal is greatly facilitated by people cover. and vehicle movement, plus stormwater runoff 8. Few specialist species and mostly and accelerated airflow associated with built environmental generalists predominate in structures. cities, with some pre-adapted and some in situ 18. Green roofs (vegetation covered) and city-adapted species present. green walls help reduce urban heat buildup, 9. Despite widespread species-scarce sites, stormwater runoff, and air pollution locally overall biodiversity is high, mainly due to high within an urban area. habitat diversity, native species inputs, 119 19. Most vegetation patchiness and infrastructure networks. succession results from human activity, i.e., 30. Streets and roads are barriers against, site clearance/alteration/construction and/ and conduits for, animal movement, in both or ongoing management/maintenance/ cases with more traffic strongly decreasing repair. movement rate. 20. Ecological succession from plant 31. Food webs are typically simplified, and colonization to mature tree vegetation, or even their predator links reduced, with increasingly complete young-tree cover, is rare due to site intensive urbanization. disturbance or land-use change 21. While species composition and abundance Soil and organisms constantly change, pulses of new species (e.g., 32. Porous low-organic-matter soils, after 1500 in Europe) provide novel species characteristic of fill sites, predominate near assemblages, which in turn change rapidly. roads, streets, and buildings. 22. Plant populations typically exhibit high 33. Low organic matter in widespread fill, resistance, high resilience, or temporary plus soil compaction by former construction existence in urban areas with widely fluctuating or present human activity, strongly limits the environmental conditions. growth of woody plants. 34. Soil types are often only 1 to 100 m wide, Animals/wildlife commonly reflecting an area’s history of 23. Most wildlife species strongly respond construction and fill. to the species and arrangement of trees 35. Vertical soil layers from place to place are and shrubs, especially in areas with high highly variable in number, depth, and types/ impervious-surface cover. amounts of embedded anthropogenic objects. 24. Animals tolerate and communicate in 36. Abundant diverse pipes, tunnels, endless urban noise—some loud, most low foundations, and artifacts, plus their chemicals, frequency. strongly affect the growth and distribution of 25. Many terrestrial wildlife species are roots, soil microbes, and soil animals. nocturnal, avoiding daytime people and traffic, 37. Diverse dense overlapping pipe-systems and respond to diverse changing urban lights. with leaks and overflows add chemicals and 26. Pipes and streets facilitate widespread pest water to the soil, while maintenance and movement between and into buildings. 27. repairs keep the area in flux. Pets respond strongly to human behavior and 38. Widespread high soil pH from water running feeding, while only slightly affecting surrounding across concrete or mortar surfaces differentially animals and plants. affects mineral nutrient availability, growth of 28. Genetic adaptation and differentiation organisms, and species present. includes urban-rural population divergence, 39. Concentrated heavy metals, hydrocarbons, while selective forces include pollution, human- pesticides, and other organic compounds provided food, and low-frequency noise. in soil, especially from nearby industry and 29. Wildlife distributions and routes are transportation, decimate soil animals and commonly rectilinear, mainly reflecting microbes. road, street, walkway, rail, and pipe APPENDIX 120 40. Aerobic decomposition typically improves nearby motor-vehicles and industries, bathe contaminated soil, whereas water flowing and often inhibit the growth and survival of through such soil commonly spreads toxins plants and animals. into groundwater and surface waterbodies. 50. Strategically located tree plantings, e.g., in parks, help reduce most air pollutants, Chemical and Organisms locally improving air quality. 41. Around built structures chemical flows 51. Trees cool air by shading wall, sidewalk are mainly rectilinear, but locally convoluted, and street, by transpiring water, and by enhancing or inhibiting organisms along the accelerating airflow between tree crown routes. and wall. 42. Chemical ‘‘flow throughs’’ rather than cycles 52. Abundant well-adapted urban-tolerant predominate, with little recycling. nonnative woody plants help cool and clean 43. Photosynthetic CO2 absorption and organic urban air. matter production are low due to limited 53. In summer, heat volatilizes certain organic vegetation cover, plus heat-and-pollution substances from the surfaces of roads and car stressed plants. parks, with the heat and resultant air 44. Nitrogen and phosphorus from diverse pollutants inhibiting some nearby plants. sources blanket the urban area, producing 54. Concentrated fossil-fuel combustion makes highly eutrophicated terrestrial and aquatic the urban area a primary CO2 emitter, with ecosystems often dominated by one or a global-warming effects on organisms in rural few species. and remote areas. 45. Cities are cauldrons of countless concentrated human-created chemicals, Water and organisms overwhelmingly with unknown effects on 55. The water table commonly supporting species and their biology. surface waterbodies is normally lower and more variable than in surrounding areas, and Air and Organisms groundwater is polluted/contaminated. 46. Heat flow, especially related to impervious 56. Wetlands are scarce, often due to former surfaces, rather than organic food-chain energy farmer activity, and typically contain locally flow, dominates most urban uncommon species tolerant of human ecosystems. disturbance. 47. Extensive impervious-surface areas 57. Stormwater runoff largely from have limited plant transpiration along with impervious surfaces and low-friction pipes considerable evaporation (after rains), with dominates water flows, and hardly any the net result being rather little air cooling. water cycling/recycling occurs within an 48. Air turbulence and vortices, related to the urban area. arrangement of built structures, effectively 58. Stormwater runoff, which cleans remove particles from surfaces and urban surfaces and is piped or ditched to create pollutant and propagule-dispersal stream, pond, or wetland, causes pulses or patterns. fluctuations in water levels and pollutant 49. Diverse air pollutants, especially from concentrations. 121 58. Stormwater runoff, which cleans native species, and are major sources for urban surfaces and is piped or ditched to species dispersal within the city. stream, pond, or wetland, causes pulses or 68. The distribution of greenspaces, even fluctuations in water levels and pollutant tiny, within a built area has a strong effect concentrations. on urban heat, water flows, and species 59. Most local waterbodies have intensive movement. human use and disturbance, considerable 69. Diverse types of urban agriculture hard edge, and a quite limited littoral area provide a distinctive flora, abundant of vegetation zones with rich aquatic fauna. herbivore populations, and nutrient-rich 60. Many streams, ponds, and wetlands have soil and water. lowered water levels in a wastewater sewage- 70. Vacant plots (lots) are typically susceptible to system area, and are polluted in a septic-system infill construction, which reduces the benefits of area containing some defective systems. vegetation and of ‘‘stepping stones’’ for species 61. Human wastewater with limited or no movement. treatment, or combined-sewer-overflows, is 71. Lawns, with intensive human use, channeled downslope/downriver, often creating mowing, watering, and chemical local anaerobic water conditions. maintenance, are widespread patches of 62. Chemicals and microbes in human water absorption, low-structure plant cover, wastewater commonly seep into the soil, but and low species richness. constantly or periodically pour into and pollute 72. Vegetated corridors, from house-plot local aquatic ecosystems. shrub lines to wide greenways, are often 63. Streams are commonly truncated, connected in networks and facilitate channelized, rock/concrete-lined, flashy, in species movement. low-flow condition, and/or lost into pipes, 73. Species movement along green all of which limit fish and other aquatic corridors is commonly limited by internal species. heterogeneity, low-quality sections, gaps/ 64. Urban streams and rivers, or estuary breaks, and the sequence of adjoining land and sea, normally clean an urban area by uses. carrying away numerous types of solid 74. Sequences of green (vegetated) waste and chemical pollution. ‘‘stepping stones’’ surrounded by 65. Water quality is strongly determined development are effective routes for some by diverse human effects along and near wildlife movement, especially generalist stream corridors. species. 66. Water quantity (or hydrologic flow) and flooding of streams and rivers commonly Residential, commercial, industrial areas increase with the proportion of developed land 75. Residential high rises, low rises, single units, in upstream or headwater areas. courtyard/patio houses, and informal squatter housing in a city serve as differing sources, Greenspaces sinks, and repellents for species movement. 67. Dissimilar large greenspaces in a city contain most of the interior and uncommon APPENDIX 122 76. A block of highly diverse and ever- combined bulges, satellite-city growth, changing house plots is ecologically tied strip development, and sprawl, with the together by some repetitive plantings/ first two urbanization processes being least land uses, plus green street side and back- environmentally damaging. boundary corridors. 86. Suburbs are filters of flows/movements 77. Within a house plot, concentrating diverse between rural and city areas, and also key land uses, maintenance regimes, and tiny sources of flows affecting both areas. structures commonly increases species 87. The patterns (curve shapes) along urban- richness well above that in a nearby natural to-rural gradients especially depend on the area. specific radii selected, locations of first and last 78. Biodiversity is likely higher in informal points, and the ecological variables measured. settlements than in similar-density areas, 88. Urban-region natural resources close due to concentrated microhabitats and little to a city, including freshwater supply, food maintenance sites with native and nonnative market-gardening, clean air, recreation species. areas, and tourist spots, strongly enhance 79. Numerous nonnative species are the city’s ecology. transported by ship, aircraft, train, and truck 89. Outside the city, a water-supply reservoir to warehouses/storage sites, and then escape with protected surrounding land is a ‘‘hotspot’’ or are trucked to commercial and residential of fish, wildlife, and biodiversity, due to its large areas. 80. Commercial and shopping areas, with area and concentration of diverse habitats. concentrated goods, people, food, garbage, and 90. Major natural and human-caused other organic materials, sustain surrounding disturbances are often ecological and human scavenger and pest populations. disasters, due to intensive development plus 81. Many industrial sites contain uncommon limited resistance and resilience of a large species associated with raw materials, dense population. byproducts, or pollutants, yet have low species richness. 82. Many pest insects genetically adapt to heavy pesticide use around kitchens, houses, restaurants, and food markets, as well as standing water. City and ring-around-the-city 83. Urban pollutants, commercial goods, vehicles, and people flow outward from a city, ecologically transforming surrounding areas. 84. Commuters, suburban nonnative species, and diverse farm and industrial effects from surrounding areas flow inward to the city, ecologically modifying urban areas. 85. Urban areas normally expand by 123 APPENDIX 124 Table 4 Climate- Food-Species Matrix of seventy perenn ial woody species JX)tentially appropriate for urban focxl forestry appli cations, according to our anal ys is. The thirty species shown in bo ld are highly suitab le for urban food forestry, based on both their drought and cold tolerance, and high edibi lity ranking according to four crite1ia. Italicized spec ies arc part of genera included in the Climate- Species Matrix of Roloff ct al. (2009). Species marked with stars arc actinorhizal (nitrogen-fi xing) . "Type of plan t" includes large trees (> 10 m), short trees (6- 10 m), large bushes (3- 6 m), short bu shes (0.25- 3 m), and groundcovers ('es )'es 3 -20 Yes mulberry Castanea saliva Large tree Sweet Yes Yes No No 3 -20 Yes che.5tnut Morus nigra Large tree Black No No Yes Yes 3 -20 Yes mulberry Rubus idaeus Shon bush Raspbeny Yes Yes Yes Yes s - 40 No Ribes g landulosurn Sh0t1 bush White crnTant Yes Yes Yes Yes s - 40 No Rubus spectabi lis Sho11 bush Salmon berry Yes Yes Yes Yes 5 - 35 No Fragaiia x an anassa G round co ver StrawbeJTy Yes Yes Yes Yes s - 30 No Sambucus nigra Tall bush ElderbetTy Yes Yes Yes Yes s -25 No Ribes ni grurn Shon bu sh Black currant Yes Yes Yes Yes s - 20 No Prunus persica Sho11 tree Peach and Yes Yes Yes Yes - 20 No nectarine Ribes uva-cri spa Shot1 bu sh Goosebeny Yes Yes Yes Yes 5 - 20 No Diospyros kaki Shmi tree Asian Yes Yes Yes Yes s -1 8 No persimmon Ficus carica Sho11 tree Fig Yes Yes Yes Yes s -I S Yes Rubus chamaemo111s Groundcover Cloudbe1Ty Yes No Yes Yes 4 - 40 No Vaccin ium vitis- G roundcover Lingonberry Yes Yes No Yes 4 - 35 No idaea APPENDIX 126 REFERENCES Adams, T. 2019. “’They are absolutely being priced OUT’: Rents, home prices OUTPACE income growth in Eugene.” Retrieved February, 2021, from https://kval.com/news/local/they-are- absolutely-being-priced-out-rents-home-prices-outpace-income-growth-in-eugene Ahern, J. 2007. 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Retrieved from https://link-gale-com.libproxy.uoregon.edu/apps/doc/ A454485920/AONE?u=euge94201&sid=AONE&xid=ffae9962 REFERENCES 130 “[...] parks provide the necessary room for contest and struggle that allow people an opportunity to produce their own meanings and uses for public space. Whatever their flaws, parks remain among the most reliable places we have for the unscripted interactions that oil the creaky machinery of democratic social life.” -John Beardsley, 2007