Umatilla National Forest

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Browsing Umatilla National Forest by Author "Powell, David C."

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    ItemOpen Access
    Tower Fire ecosystem analysis forest vegetation report and forest vegetation BAER report
    (1997-01) North Fork John Day Ranger District (Or.); Powell, David C.; Erickson, Vicky
    Vegetation report analyzes impact of fire on pre-fire forest cover types and examines potential natural vegetation and current conditions. Recommendations consider free salvage, natural regeneration, artificial reforestation, thinning, understory removals, prescribed burning, fertilization, and pruning. BAER (burned area emergency rehabilitation) report is designed to alleviate emergency watershed conditions following wildfire to help stabilize soil, control water, sediment, and debris movement, and prevent threats to life, property, and other downstream values, both on-site and off-site. Recommends that the District acquire high-resolution (2-meter) color infrared (CIR) photography for the fire area, that the burned plantations be replanted as quickly as possible, that the remaining areas with a high amount of stand mortality be rescheduled for planting, that all plantings emphasize establishment of early-seral conifers on upland sites, and that future stand densities by maintained at levels which minimize the potential for crown fires.
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    ItemOpen Access
    Umatilla and Meacham ecosystem analysis and Upland forest vegetation analysis: Umatilla and Meacham watersheds
    (2001-04) Umatilla National Forest (Agency : U.S.); Powell, David C.
    Ecosystem analysis finds the watersheds are a critical source of relatively cool water for the entire Umatilla Subbasin, the Umatilla River and Meacham Creek provide some areas of relatively high quality conditions for remnant and recovering fish populations, bull trout populations are at risk because of their small population and limited satisfactory habitat with less than ideal water temperature conditions, coldwater source protection may conflict with high priority vegetation management activities, overstocked stands with dense understories invite wildfires, a high risk of infestation exists from western spruce budworm and Douglas-fir tussock moth, and ten native plant species are at risk. Vegetation analysis describes the potential vegetation, cover types, size classes, structural stages, density (canopy cover), and disturbance processes. Also includes the historical range of variability for forest structural stages, consideration of limited vegetation components, and an assessment of and suggestions for stocking levels for various tree species.