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Stream DOC, nitrate, chloride and SUVA response to land use during winter baseflow conditions in sub-basins of the Willamette River Basin, OR

Creator:: Frentress, Jay
Abstract:: To better understand the impact of land use on stream nutrient export, a synoptic sampling of 57 sub-basins within the Willamette River basin was conducted during winter baseflow conditions (February 2009). I assessed whether stream dissolved organic carbon (DOC), NO₃⁻ and Cl⁻ and specific ultra-violet absorbance (SUVA) values were correlated...
Resource Type:: Masters Thesis

The development and analysis of future agricultural landscapes

Creator:: Berger, Patricia A.
Abstract:: Alternative futures studies provide a way for policy-makers and stakeholders to investigate the future impacts of different management strategies by providing representations of possible outcomes. An alternative futures study was undertaken by the Pacific Northwest-Ecosystem Research Consortium for the Willamette River Basin, Oregon, USA, to determine how this regional system...
Resource Type:: Dissertation
Full Text:: agricultural landscape. Finally, this information was placed into the context of the Willamette River Basin

Implementing best management practices in small commercial and non-commercial animal enterprises

Creator:: Godwin, Derek C.
Abstract:: Small commercial and non-commercial animal enterprises (SCAEs) raise a few beef cows, horses, pigs, sheep, poultry, and other animals on a few acres. These enterprises are often located in suburban areas of watersheds and show potential for degrading water quality through to increased bacterial, nitrogen, and phosphorus concentrations. SCAEs implement...
Resource Type:: Masters Thesis
Full Text:: largest sub-watershed in the Tualatin River Basin located outside of Portland, Oregon. The Tualatin River

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Creator:: Feaga, Jeff
Abstract:: The Willamette Valley of Oregon has high rates of winter precipitation that cause leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots planted in summer vegetables with and without winter cover...
Resource Type:: Masters Thesis

Farm effects on runoff quality in Oregon's Tualatin River Basin. Part 1 : Farm survey, Washington County, Oregon

Creator:: Moberg, Dean P., Rambo, Neil L., and Washington County Soil and Water Conservation District (Or.)
Abstract:: Survey In 1995, the Washington County Soil & Water Conservation District interviewed 90 farmers in northwest Oregon's Tualatin River Basin, using a survey developed by the USDA - Natural Resources Conservation Service (NRCS) and Oregon State University (OSU) Extension Service. Crop rotations, yields, tillage, fertilizer and irrigation practices were recorded....
Resource Type:: Technical Report
Full Text:: Farm Effects on Runoff Quality in Oregon' s Tualatin River Basin Part

Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95

Creator:: Hinkle, Stephen R., National Water-Quality Assessment Program (U.S.), and Geological Survey (U.S.)
Abstract:: The purposes of this report are to describe the quality of shallow ground water in alluvial aquifers of the Willamette Basin and to identify relationships between shallow ground-water quality and various natural and anthropogenic factors. Several natural and anthropogenic factors (soil characteristics, cumulative thickness of clay above open interval of...
Resource Type:: Technical Report

Input/output energy analysis of regional water pollution control

Creator:: Heggen, Richard J.
Abstract:: Two strategic approaches to water quality control in Oregon's Willamette River are presently being utilized: point source treatment and flow augmentation. Dry weather releases from reservoirs are for authorized purposes other than water quality. Reservoirs can participate in pollution control by summer flow augmentation where authorized water resource objectives (flood...
Resource Type:: Dissertation
Full Text:: . Williamson Two strategic approaches to water quality control in Oregon's Willamette River are presently

Hydrospheric trace elements and their application in tracing water pollutants : final report

Creator:: Loveland, Walter D.
Resource Type:: Technical Report
Full Text:: water system, the Willamette River of western Oregon, and to tes t the conservative nature of the

A project to collect scientific data and provide evaluation and recommendations for alternative pollution control stratagies for the Tualatin River Basin

Creator:: Oregon State University. Water Resources Research Institute and Oregon. Dept. of Environmental Quality
Resource Type:: Book
Full Text:: Recommendations for Alternative Pollution Control Strategies for th e Tualatin River basin.. Report submitted to

Industrial and city wastes

Creator:: Oregon State College. Engineering Experiment Station, Merryfield, Fred, 1900-, Kachelhoffer, Fred George, 1893-, and Bollen, Walter Beno, 1896-
Resource Type:: Technical Report
Full Text:: of the Willamette River. 5. Present work. This bulletin is a report on the continuation of part of

ScholarsArchive@OSU

Stream DOC, nitrate, chloride and SUVA response to land use during winter baseflow conditions in sub-basins of the Willamette River Basin, OR

The development and analysis of future agricultural landscapes

Implementing best management practices in small commercial and non-commercial animal enterprises

An eleven year study of nitrate leaching in vegetable production with winter cover crops

Farm effects on runoff quality in Oregon's Tualatin River Basin. Part 1 : Farm survey, Washington County, Oregon

Quality of shallow ground water in alluvial aquifers of the Willamette Basin, Oregon, 1993-95

Input/output energy analysis of regional water pollution control

Hydrospheric trace elements and their application in tracing water pollutants : final report

A project to collect scientific data and provide evaluation and recommendations for alternative pollution control stratagies for the Tualatin River Basin

Industrial and city wastes

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