Index Catalog // ScholarsArchive@OSU

Historical Change and the Hydrogeomorphic Context of Present-day Floodplain Forests in the Willamette Valley, Oregon

Creator:: Bervid, Heather D.
Abstract:: Floodplain forests play many important roles in the fluvial processes and environments of large alluvial rivers, including acting as geomorphological influences and habitat for native fish during high flows. Many large, gravel-bed river systems have undergone substantial change in recent centuries, resulting in loss of forested area to agriculture, reduction...
Resource Type:: Masters Thesis
Full Text:: River at Albany, OR and b) Willamette River at Harrisburg, OR

An evaluation of the potential for land use management as an air pollution control measure within the Willamette Valley

Creator:: Vinton, Larry Richard
Abstract:: The rapid population growth and related economic growth of the Willamette Valley has resulted in a significant reduction in air quality over the past several decades. Within the Willamette Valley air ventilation is very poor and therefore the airpo1lutton potential is one of the highest in the United States. There...
Resource Type:: Capstone Project
Full Text:: 6,000 feet. The lowest pass or gap in this rang Is the Columbia River Gorge east of Portland. Bounding

A geographic application project utilizing location-allocation computer programs to determine canning facility locations in the Willamette Valley

Creator:: Maddocks, Nicholas Anthony
Abstract:: A Willamette Valley farm cooperative was interested in evaluating locations for their canning facilities based on the criterion of minimizing aggregate distance to their contract farms. This location problem presented an excellent opportunity for a geographic application project as it was characterized by one, a spatial distribution of farms and...
Resource Type:: Capstone Project
Full Text:: COMPUTER PROGRAMS TO DETERMINE CANNING FACILITY LOCATIONS IN THE WILLAMETTE VALLEY BY NICHOLAS ANTHONY

Small mammal assemblages in natural and restored wet prairies: an evaluation of habitat in Oregon's Willamette Valley

Creator:: Slane, Lori B.
Abstract:: This study was conducted to explore differences in diversity and abundance of small mammal populations in natural and restored wet prairies in Oregon's Willamette Valley. Mammals were live-trapped in eight Willamette Valley wet prairies (four natural remnants and four restorations) during the summer of 2000; population abundance estimates for each...
Resource Type:: Capstone Project
Full Text:: Sampling Site Reference Map, Willamette Valley, Oregon

Geochemical characteristics of iron-manganese nodules in seasonally-saturated soils of the Willamette Valley, Oregon

Creator:: Seter, Lisa M.
Abstract:: This study was initiated to characterize the distribution of Fe-Mn nodules and to elucidate trends of Fe, Mn, and P relative to the intensity of the annual cycles of reduction and oxidation. Nodules were enriched in Fe, Mn, and P relative to the soil matrix making them an integral part...
Resource Type:: Masters Thesis
Full Text:: Willamette pedon Physical Characteristics Water Tables Eh 220 mV or lowers Depth Horizon Color Texture

Transdisciplinary Research in Water Sustainability: What’s in it for an Engaged Researcher-Stakeholder Community?

Creator:: Chan, Samuel, Ferguson, Laura, Santelmann, Mary V., and Tilt, Bryan
Abstract:: This study uses semi-structured interviews and an online survey to explore the structure, challenges and outcomes of a five-year National Science Foundation-funded water scarcity modelling project in the Willamette River Basin of Oregon, USA. The research team chose to facilitate broader impacts by engaging stakeholders from the study’s inception (e.g....
Resource Type:: Article
Full Text:: modelling project in the Willamette River Basin of Oregon, USA. The research team chose to facilitate

A Geodatabase and Digital Characterization of Wetlands Mapped in the Willamette Valley With Particular Reference to Prediction of Their Hydrogeomorphic (HGM) Class

Creator:: Adamus, Paul R.
Abstract:: This project defined criteria to allow only the use of existing spatial databases (and only those with comprehensive coverage of the ecoregion) to identify the HGM (hydrogeomorphic) class of mapped Willamette Ecoregion wetlands. The project then applied those criteria automatically and systematically to every mapped wetland in the ecoregion, resulting...
Resource Type:: Technical Report
Full Text:: with Excel spreadsheets can sort, query, or cross-tab the file comprising the Willamette wetlands

Survey of the Ecological Condition and Functions of Enhanced, Restored, and Reference Wetlands in the Willamette Valley, Oregon

Creator:: Adamus, Paul R.
Abstract:: In a series of Willamette Valley wetlands, standardized protocols were used in 2009 and 2010 to primarily assess (a) vegetation species composition and (b) relative levels of ecosystem services. Of the 60 wetlands visited in one or both years, 34 were classified as riverine and 26 as flats. Of the...
Resource Type:: Technical Report
Full Text:: and thus cannot be construed to be a probabilistic or representative sample of Willamette wetlands or

Lime Fertilizer Interactions Affecting Vegetable Crop Production

Creator:: Hemphill, Delbert D. and Jackson, T. L. (Thomas Lloyd), 1922-
Abstract:: Experiments at the North Willamette Experiment Station have evaluated response of vegetables to lime and other fertilizers since 1970. The soils are moderately acid (pH 5.4 to 5.6), high in P, and better drained than most soils used for vegetable crop production in western Oregon. Typical soil acidity problems such...
Resource Type:: Technical Report
Full Text:: Production' Delbert D. Hemphill, Jr., and T. L. Jackson2 ABSTRACT Experiments at the North Willamette

Hazelnut : 2019 pest management guide for the Willamette Valley

Creator:: Wiman, Nik G., Pscheidt, Jay W., Moretti, Marcelo L., and Oregon State University. Extension Service
Abstract:: Recommends pest management practices for hazelnut.
Resource Type:: Technical Report
Full Text:: Management Guide for the Willamette Valley · EM 8328 · page 7 CONTINUED—April–May Pest or disease/ Material

ScholarsArchive@OSU

Historical Change and the Hydrogeomorphic Context of Present-day Floodplain Forests in the Willamette Valley, Oregon

An evaluation of the potential for land use management as an air pollution control measure within the Willamette Valley

A geographic application project utilizing location-allocation computer programs to determine canning facility locations in the Willamette Valley

Small mammal assemblages in natural and restored wet prairies: an evaluation of habitat in Oregon's Willamette Valley

Geochemical characteristics of iron-manganese nodules in seasonally-saturated soils of the Willamette Valley, Oregon

Transdisciplinary Research in Water Sustainability: What’s in it for an Engaged Researcher-Stakeholder Community?

A Geodatabase and Digital Characterization of Wetlands Mapped in the Willamette Valley With Particular Reference to Prediction of Their Hydrogeomorphic (HGM) Class

Survey of the Ecological Condition and Functions of Enhanced, Restored, and Reference Wetlands in the Willamette Valley, Oregon

Lime Fertilizer Interactions Affecting Vegetable Crop Production

Hazelnut : 2019 pest management guide for the Willamette Valley

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