Index Catalog // ScholarsArchive@OSU

Fish acclimation and the development of tolerance to zinc as a modifying factor in toxicity

Creator:: Anadu, Donald Igwegbe
Resource Type:: Dissertation

Factors influencing residual stand damage levels due to cable thinning of coniferous stands in western Oregon

Creator:: Caccavano, Michael P.
Abstract:: The purpose of this study was to determine the significant variables influencing the damage levels sustained by the residual stand after skyline thinning of coniferous stands. Damage levels were measured in ten study areas in western Oregon that had received their first commercial thinning. For this post-logging study, 38 units...
Resource Type:: Capstone Project

Evaluating dairy waste management systems ̓influence on fecal coliform concentration in runoff

Creator:: Grismer, Mark Edward
Abstract:: This paper examines the environmental factors influencing the die-off and transport of fecal coliform bacteria present in wastes applied to the land surface. These factors are examined specifically for dairy waste management systems and the net effect each system has on runoff water quality. A model is developed that considers...
Resource Type:: Masters Thesis
Full Text:: Runoff Redacted for privacy Abstract approved: Jam's A. Moore This paper examines the environmental

An analysis of two adjacent agricultural watersheds in west central Oregon

Creator:: Schoeneberger, Philip James
Abstract:: Two small adjacent watersheds on the west-central edge of the Willamette Valley of western Oregon were studied. Information was gathered on existing conditions to determine the suitability of the two watersheds for a paired-watershed study design. A soil survey was conducted using slightly modified soil series previously established for the...
Resource Type:: Masters Thesis
Full Text:: results of the particular study focus and the environmental conditions encoun- tered. Some designs are

Diclofop in runoff from agricultural watersheds in a high winter rainfall zone

Creator:: Hickman, John Spencer
Abstract:: Diclofop-methyl [me yl 2-(4-(2,4-dichlorophenoxy) phenoxy) propanoate] hydrolysis, degradation, and leaching were studied in field and laboratory experiments. Greater than 75% of the applied diclofop-methyl hydrolyzed to diclofop in 2 days at 4°C, the prevailing soil temperature during western Oregon winters. Degradation beyond the diclofop molecule, also an active herbicide, was...
Resource Type:: Dissertation
Full Text:: environmental contamination resulting from their movement from treated areas. Much of this concern has been

Deposition and persistence of polynuclear aromatic hydrocarbons after slash burning clear-cut sites in Oregon

Creator:: Sullivan, Timothy Joseph
Abstract:: Research has been completed which identifies qualitatively and quantitatively the deposition, persistence and fate of polynuclear aromatic hydrocarbons (PNAH) on burned clear-cut sites in Oregon. Eight PNAH were identified and quantified in post-burn litter samples taken from four slash-burned sites. Deposition of lower molecular weight, 3-4 ring compounds was considerably...
Resource Type:: Dissertation
Full Text:: the environment as a result of man's activities constitutes a growing environmental concern. PNAH

An experimental investigation into the dynamic collapse phase of drilling fluid discharged into a stratified, flowing environment

Creator:: Albright, Stephen L.
Abstract:: Dumping drilling mud from offshore drilling rigs into the ocean could have a negative impact on the marine environment. Due to this possible impact, the Offshore Operators Committee (OOC) has deemed it necessary to predict the fate of drilling mud discharged into the ocean. Through the funding of OOC and...
Resource Type:: Masters Thesis
Full Text:: been conducted concerning the environmental fate and effect of drilling mud. In determining the fate

Evaluating dairy waste management systems' influence on fecal coliform concentration in runoff

Creator:: Moore, James A. (James Allan), 1939-, Grismer, Mark E., Crane, Stuart R., Miner, J. Ronald, Oregon State University. Agricultural Experiment Station, Oregon State University. Agricultural Engineering Department, Tillamook Soil and Water Conservation District (Or.), Oregon. State Soil and Water Conservation Commission, Oregon. Department of Environmental Quality, and United States. Environmental Protection Agency
Abstract:: This report examines environmental factors influencing the die-off and transport of fecal coliform bacteria present in wastes applied to the land surface. These factors are examined specifically for dairy waste management systems and the net effect each system has on runoff water quality. A model is developed that considers the...
Resource Type:: Technical Report
Full Text:: Environmental Quality U. S. Environmental Protection Agency CONTENTS Pane Abstract i Acknowl edgements ii

Short-term fate of xenobiotic substances in pesticide deposits

Creator:: Bentson, Kenneth Paul
Abstract:: An experimental protocol to determine the effects of temperature and light on the dissipation of xenobiotic substances in pesticide deposits is presented. A factorial design laboratory experiment is used to develop isothermal models of the dissipation of compounds over time in authentic pesticide deposits on excised leaves arid glass microscope...
Resource Type:: Dissertation

Designing skid trail systems to reduce soil impacts from tractive logging machines

Creator:: Froehlich, Henry A., Aulerich, D. E., and Curtis, R.
Abstract:: Logging on skid trails restricted to 10 percent or less of the harvested stand can reduce the area of compacted soil by at least two-thirds, In a comparative study, productivity of Douglas-fir logs per hour was just as great In an area with designated trails as In an adjacent area...
Resource Type:: Technical Report

ScholarsArchive@OSU

Fish acclimation and the development of tolerance to zinc as a modifying factor in toxicity

Factors influencing residual stand damage levels due to cable thinning of coniferous stands in western Oregon

Evaluating dairy waste management systems ̓influence on fecal coliform concentration in runoff

An analysis of two adjacent agricultural watersheds in west central Oregon

Diclofop in runoff from agricultural watersheds in a high winter rainfall zone

Deposition and persistence of polynuclear aromatic hydrocarbons after slash burning clear-cut sites in Oregon

An experimental investigation into the dynamic collapse phase of drilling fluid discharged into a stratified, flowing environment

Evaluating dairy waste management systems' influence on fecal coliform concentration in runoff

Short-term fate of xenobiotic substances in pesticide deposits

Designing skid trail systems to reduce soil impacts from tractive logging machines

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search