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Hydrophobicity of Cindery Typic Cryorthents

Creator:: Evans, Lynn B.
Abstract:: The hydrophobicity of soils of the Deschutes National Forest was studied. The soils are Cindery Typic Cryorthents, formed in cinders and ash from Mt. Mazama. Ponderosa pine is the dominant overstory vegetation. Of particular interest was the effect of prescribed burning on hydrophobicity. Fire has been shown to cause a...
Resource Type:: Masters Thesis
Full Text:: 1. The effect of heating time and temperature on soil water repellency after heating (after: DeBano

Nitrate and pesticide transport under pear production in clay and sandy soil

Creator:: Cao, Weidong
Abstract:: Groundwater contamination on irrigated land is of concern in this nation and around the world. In order to reduce the potential of groundwater contamination by agricultural practices such as irrigation, fertilizer and pesticide application, vadose-zone monitoring and sampling are needed. The main objective of this study was to evaluate impacts...
Resource Type:: Masters Thesis
Full Text:: clay and sandy soil AN ABSTRACT OF THE THESIS OF Weidonq Cao for the degree of Master of Science in

Effect of thinning Douglas-fir on soil moisture, temperature and nitrogen relations

Creator:: André, Johnnie Edgar
Resource Type:: Masters Thesis
Full Text:: Effect of Thinning Douglas-Fir on Soil Moisture

Association of hydrophobic organic compounds with dissolved soil organic carbon

Creator:: Ochs, Michael
Abstract:: Volatile hydrophobic compounds (HOCs) brought into soil and sediment systems represent a serious threat to the environment. Dissolved organic carbon (DOC) may exert an important influence over the total aqueous solubility and mobility of organic pollutants through their incorporation into micelles or the formation of soluble complexes. To date, however,...
Resource Type:: Masters Thesis
Full Text:: their comments with respect to this thesis. The departments of Soil Science (and Environmental

Remediation of heavy-metal contaminated soils using succinic acid

Creator:: Kaul, Arvind
Abstract:: Succinic acid, a low molecular weight dicarboxylic acid was used to leach out heavy metals from Willamette Valley soil (contaminated separately with lead, copper, and zinc) in form of water-soluble organo-metal complexes. The research tasks included developing synthetic contaminated soils representative of those found at Superfund sites and making heavy...
Resource Type:: Masters Thesis
Full Text:: was used to leach out heavy metals from Willamette Valley soil (contaminated separately with lead

Environmental assessment of soils contaminated with ₂₃₈U and/or ₉₀Sr via scintillation technology : Fernald Incinerator Site- a case study

Creator:: Martin-Bandin, Fernando
Resource Type:: Masters Thesis
Full Text:: , existence of grass or sagebrushes on the surface soil and the heating of the detector components (due to

Nitrate and water under terraced dryland wheat production in Oregon

Creator:: Strock, Jeffrey S.
Abstract:: Dry land agriculture using summer fallow is a common crop production practice in the Columbia Plateau region of eastern Oregon. Farmed-over level terraces are used to control surface water runoff and soil erosion. More than 70 percent of the average annual precipitation around Pendleton, Oregon (350 - 400 mm) falls...
Resource Type:: Masters Thesis
Full Text:: Oregon AN ABSTRACT OF THE THESIS OF Jeffrey S. Strock for the degree of Master of Science in Soil

Tilling compacted forest soils following ground-based logging in Oregon

Creator:: Andrus, Charles W.
Abstract:: Implements for tilling compacted forest soils were tested on sites logged with ground-based machines in Oregon. The sites covered a variety of soil conditions ranging from a clay loam to a rock7 2C2 iplemeflts tested included disk harrows (four aies), brusa blades (three sites), standard subsoiler tines (two sites), wing.-...
Resource Type:: Masters Thesis
Full Text:: Oregon. The sites covered a variety of soil conditions ranging from a clay loam to a rock7 2C2

Influence of log truck traffic and road hydrology on sediment yield in western Oregon

Creator:: Miller, Rebecca H.
Abstract:: An understanding of the factors that influence surface erosion from roads is necessary to prevent and mitigate sediment production from forest roads. This study investigated the impacts of log truck traffic and road hydrology on sediment yield from ten forest road segments in the foothills of the Cascade Mountains of...
Resource Type:: Masters Thesis
Full Text:: surface of bare soil which is then subject to erosion from surface runoff and raindrop splash

Soil column desorption studies on a chromium contaminated soil

Creator:: Ball, Bruce L.
Abstract:: Soil column studies were performed on a chromium contaminated soil from the United Chrome Products Superfund Site currently undergoing a pump-and-treat cleanup process. The goal of the research was to provide insight into the feasibility of chemically changing the injection fluid of the pump-and-treat system to enhance hexavalent chromium (Cr(VI))...
Resource Type:: Masters Thesis
Full Text:: Soil column desorption studies on a chromium contaminated

ScholarsArchive@OSU

Hydrophobicity of Cindery Typic Cryorthents

Nitrate and pesticide transport under pear production in clay and sandy soil

Effect of thinning Douglas-fir on soil moisture, temperature and nitrogen relations

Association of hydrophobic organic compounds with dissolved soil organic carbon

Remediation of heavy-metal contaminated soils using succinic acid

Environmental assessment of soils contaminated with ₂₃₈U and/or ₉₀Sr via scintillation technology : Fernald Incinerator Site- a case study

Nitrate and water under terraced dryland wheat production in Oregon

Tilling compacted forest soils following ground-based logging in Oregon

Influence of log truck traffic and road hydrology on sediment yield in western Oregon

Soil column desorption studies on a chromium contaminated soil

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