Monitoring Riparian Restoration Efforts in the Willamette Valley

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dc.contributor.authorScott, Jessica
dc.contributor.authorLahtinen, Johnmichael
dc.contributor.authorEngbeck, Erin
dc.contributor.authorBerling, Terri
dc.contributor.authorFerra, Katie
dc.contributor.authorGregory, Alexander
dc.contributor.authorOtto, Natalie
dc.contributor.authorPemstein, Garret
dc.contributor.authorTan, Wayland
dc.contributor.authorTinkham, Gail
dc.date.accessioned2018-07-19T20:04:06Z
dc.date.available2018-07-19T20:04:06Z
dc.date.issued2014
dc.description14 pagesen_US
dc.description.abstractThe 10-student Environmental Leadership Program team, Wetlands Wildlife, collected data on Delta Ponds, a 61-hectare waterway site owned by the City of Eugene bordering the Willamette River. We used two primary monitoring activities to collect data on riparian communities and restoration efforts, focusing specifically on vegetative community type as well as biological indicators of survival and vigor. Six vegetative communities were subject to monitoring: Upland, Riparian, Wetland Transition, Emergent, Himalayan Blackberry and Recent Restoration. We collected data using protocols that were tailored to species identification, community mapping and vegetation health assessment. Overall, we found that the health of Delta Ponds appears to be improving; through community mapping we found a general increase in percent area cover for almost all target communities, with the Upland community displaying the largest increase, growing from 9% to 21% of the area surveyed. However, Emergent and Himalayan Blackberry actually decreased in percent area cover. We believe this general increase is due to extensive removal of the invasive Himalayan Blackberry (Rubus bifrons). Throughout monitoring efforts it was observed that there was a relatively high survival rate of riparian plantings with both tree and shrub plantings exhibiting a trend in growth over time. Various monitoring efforts including vegetation community mapping and riparian vigor monitoring were used to assist the City of Eugene in the prioritization of management resources and will serve as a baseline for future restoration efforts.en_US
dc.identifier.doi10.5399/uo/ourj.6.1.2
dc.identifier.issn2160-617X
dc.identifier.urihttps://hdl.handle.net/1794/23419
dc.language.isoenen_US
dc.publisherUniversity of Oregonen_US
dc.rightsCreative Commons BY-NC-ND 4.0-USen_US
dc.subjectRiparian areasen_US
dc.subjectWillamette Valleyen_US
dc.subjectRestorationen_US
dc.titleMonitoring Riparian Restoration Efforts in the Willamette Valleyen_US
dc.typeArticleen_US

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Oregon Undergraduate Research Journal: Vol. 6 No. 1 (2014)