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Effects of potato cropping practices on nitrate leaching in the Columbia basin

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: Nitrate Leaching in the Columbia Basin. Abstract approved: (Alvin R. Vosley) This study

Enhanced efficiency nitrogen fertilizers for nitrogen management in the Columbia Basin, Oregon

Creator:: Holcomb, Jess Charles
Abstract:: Ammonia (NH₃) volatilization can result in a substantial amount of surface applied nitrogen (N) being lost into the atmosphere, making it an environmental pollutant as well as reducing plant-available N. However, N can also be easily lost from the soil through leaching, and nitrous oxide (NO₂). Enhanced efficiency N fertilizers...
Resource Type:: Masters Thesis
Full Text:: is the limiting factor for haze formation in the Columbia River Gorge between Oregon and Washington

Deep soil nitrogen survey, Lower Umatilla Basin, Oregon

Creator:: del Nero, Zachary Augustus
Abstract:: Soils of 49 agricultural and 2 "native condition" sites in the Lower Umatilla Basin, Oregon were sampled for nitrate-nitrogen, ammonium-nitrogen, chloride, and pH beginning in Fall of 1992. Several sites were sampled in Spring and Fall 1993 in order to indicate movement or loss of residual soil nitrogen over time....
Resource Type:: Masters Thesis
Full Text:: INTRODUCTION Nitrate levels exceeding the US Environmental Protection Agency's standard of 10 ppm, have

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Creator:: Sobota, Daniel J.
Abstract:: Land use alters the physical and biological structure of stream ecosystems and potentially alters their capacity to process nitrogen (N), an essential nutrient that has nearly doubled in abundance on the biosphere during the past century from human activities. In this dissertation, I quantified uptake and transformation of nitrate (NO₃⁻)...
Resource Type:: Dissertation
Full Text:: releases of 15N-labeled nitrate (NO3 - ) in nine stream reaches in the Willamette River Basin of western

Understanding the impact of climate change on snowpack extent and measurement in the Columbia River Basin and nested sub basins

Creator:: Brown, Aimee Lyn
Abstract:: Shifting climate patterns in the Columbia River basin are affecting snow pack, and, as a result, stream flow throughout the region. In the Oregon Cascades, ever growing populations, and their associated activities, place increasing stress on an already over allocated hydrologic system. Political pressures, including the possibility of renegotiation or...
Resource Type:: Masters Thesis
Full Text::   Measurement in the Columbia River Basin and Nested Sub Basins          Abstract approved

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Creator:: Fernando, M.F. Sydney W.
Resource Type:: Dissertation
Full Text:: (Solanum tuberosum L.) on Soil Nitrate and Soil Fertility in the Columbia Basin by M. F. Sydney W

Beef production : Columbia Basin wheat-fallow area

Creator:: Barker, Randolph., Plath, C. V., and Oregon State College. Agricultural Experiment Station
Abstract:: Published June 1958. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Beef Production Columbia Basin Wheat-fallow Area Randolph

Trends in streamflow above and below dams across the Columbia River basin from 1950 to 2012 : assessing sub-basin sensitivity

Creator:: Hammond, John C.
Abstract:: Climate change, combined with population growth, is expected to exacerbate water scarcity globally. In the Columbia River basin (CRB), streamflow is managed for multiple objectives with a network of dams and reservoirs distributed throughout the basin that may mitigate climate change effects on water scarcity. This study quantified trends in...
Resource Type:: Masters Thesis
Full Text:: the Columbia River Basin from 1950 to 2012: Assessing Sub-basin Sensitivity Abstract approved

Marginal productivity of credit for programmed farm adjustments and factors limiting the use of credit in the Columbia Basin, Oregon

Creator:: Reeder, Clinton Bruce
Resource Type:: Masters Thesis
Full Text:: northeastern part of the state, with each county bordering on the Columbia River. These counties represent

Investigation of polycyclic aromatic hydrocarbons (PAHs) transport by suspended particulate matter (SPM) in the lower Columbia River and its estuary

Creator:: Gregg, Tiffany
Abstract:: This study aims to improve knowledge of how suspended particulate matter (SPM) affects hydrophobic contaminant transport in the lower Columbia River and its estuary, using polycyclic aromatic hydrocarbons (PAHs) as model compounds. It is hypothesized that PAHs are transported to the estuarine turbidity maximum (ETM), a prime feeding zone in...
Resource Type:: Masters Thesis
Full Text:: Particulate Matter (SPM) in the lower Columbia River and its Estuary. Abstract approved

ScholarsArchive@OSU

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Enhanced efficiency nitrogen fertilizers for nitrogen management in the Columbia Basin, Oregon

Deep soil nitrogen survey, Lower Umatilla Basin, Oregon

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Understanding the impact of climate change on snowpack extent and measurement in the Columbia River Basin and nested sub basins

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Beef production : Columbia Basin wheat-fallow area

Trends in streamflow above and below dams across the Columbia River basin from 1950 to 2012 : assessing sub-basin sensitivity

Marginal productivity of credit for programmed farm adjustments and factors limiting the use of credit in the Columbia Basin, Oregon

Investigation of polycyclic aromatic hydrocarbons (PAHs) transport by suspended particulate matter (SPM) in the lower Columbia River and its estuary

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