Index Catalog // ScholarsArchive@OSU

An evaluation of temperature prediction models on Coastal Oregon and western Cascade streams

Creator:: Tanner, Robert W.
Abstract:: Evaluations were performed on three stream temperature prediction models: Heat Source 5.6, SSTEMP 3.9, and Brown's equation. Each model was evaluated using data collected from three Coastal Oregon and two western Cascade streams. Stream temperature simulations were performed on two forested reaches, one clearcut reach, and one buffered reach, for...
Resource Type:: Capstone Project

Spatial and temporal characteristics of groundwater levels adjacent to beaver ponds in Oregon

Creator:: Sharps, Diana E.
Abstract:: This study was undertaken to evaluate the spatial and temporal characteristics of riparian groundwater tables adjacent to beaver ponds. The research was conducted in two parts; in the first portion a two-dimensional, finite-difference computer model was developed and utilized to simulate groundwater elevations through time in pond-adjacent aquifers. Two types...
Resource Type:: Masters Thesis

Recruitment trends and physical characteristics of course woody debris in Oregon Coast Range streams

Creator:: Heimann, David C.
Abstract:: This study investigated the long-term consequences of timber stand removal on the recruitment, physical characteristics, and spatial distribution of coarse woody debris in small (second- and third-order) streams of the Oregon Coast Range. A chronosequence of stream-stand systems, ranging from 21- to 140-years since disturbance (YSD), were sampled to determine...
Resource Type:: Masters Thesis

Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

Creator:: Risso, Derek A.
Abstract:: Riparian areas in the arid western United States are critical ecosystems that have been severely degraded by a variety of land and water uses over the last 100 years. In this study, the composition and structure of floodplain vegetation along the Lower Owens River in eastern California was quantitatively described...
Resource Type:: Masters Thesis
Full Text:: . Boone Kauffman and my committee members Bruce Dugger and Bob Beschta. The financial and logistical

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Creator:: McHugh, Margaret H.
Abstract:: Timber management of coastal watersheds in southwest Oregon has been complicated by the need to protect anadromous fish habitat from accelerated stream sedimentation resulting from management activity. The rugged terrain of the Elk and Sixes River basins is underlain by the complex geological province of the Klamath Mountains, in which...
Resource Type:: Masters Thesis

Distribution and characteristics of an isolated population of coastal cutthroat trout (Oncorhynchus clarki) in streams of Triangle Lake Basin, Oregon

Creator:: Hurley, Steven M.
Abstract:: This research focused on features of a genetically isolated population of cutthroat trout (Oncorhynchus clarki) in the Triangle Lake basin of coastal Oregon. A falls at the outlet of Triangle Lake has blocked upstream migration of trout and anadromous salmonids into the basin. Cutthroat trout were found throughout the six...
Resource Type:: Masters Thesis
Full Text:: Committee Members Drs. Robert Beschta, Robert Jarvis, and Gordon Reeves greatly enhanced the final product

Hydraulic influences on pool morphology : a laboratory investigation

Creator:: Frizenschaf, Jacqueline
Abstract:: A flume study was conducted to investigate the influences of changing hydraulic conditions on the bed morphology of a scoured pool. During a simulated storm runoff event, responses of the pool were tested under different conditions: clearwater flow, sediment supply at steady rates, and two different sediment mixtures of the...
Resource Type:: Masters Thesis
Full Text:: examination committee members Dr. Robert L. Beschta and Dr. Jonathan D. Istok, who both helped me to further

Response of juvenile steelhead trout to an instream habitat rehabilitation project in Meadow Creek, Oregon

Creator:: Miller, Alan Christopher
Abstract:: Responses of juvenile steelhead trout to changes in stream habitat resulting from an instream habitat rehabilitation project in Meadow Creek, Oregon were measured from 1991 through 1992 and compared to pre-treatment data from 1987 through 1990. Sixty nine pool-forming, and 59 channel-stabilizing log structures were constructed by the U.S. Forest...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENTS I would like to thank my committee, Dr. Stanley Gregory, Dr. Gordon Reeves, Dr. Robert Beschta

Chronological variation in soil density and vegetative cover of compacted skid trails in clearcuts of the western Oregon Cascades

Creator:: Vanderheyden, Jon
Abstract:: This study evaluated the recovery of compacted soils on logging skid trails in clearcuts of the western Cascade Mountains of Oregon. Soil types included clay, clay loam, silt loam, loam, sandy loam and loamy sands. Sites ranged in age from five to 38 years since harvest and 370 to llOOm...
Resource Type:: Masters Thesis

Geographic variations in water quality and recreational use along the upper Wallowa River and selected tributaries

Creator:: McDowell, Theodore R.
Abstract:: Physical, chemical and bacterial water quality parameters of the upper Wallowa River were sampled periodically between July 2, 1978 and June 9, 1979 at nine stream and lake sampling sites. Water upstream from Wallowa Lake was typified by low nutrient concentrations ( generally below detectable limits except for nitrates), low....
Resource Type:: Dissertation
Full Text:: the members of my committee, Dr. 's Charles Rosenfeld, Robert Beschta, James Lahey, Richard Highsmith

ScholarsArchive@OSU

An evaluation of temperature prediction models on Coastal Oregon and western Cascade streams

Spatial and temporal characteristics of groundwater levels adjacent to beaver ponds in Oregon

Recruitment trends and physical characteristics of course woody debris in Oregon Coast Range streams

Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Distribution and characteristics of an isolated population of coastal cutthroat trout (Oncorhynchus clarki) in streams of Triangle Lake Basin, Oregon

Hydraulic influences on pool morphology : a laboratory investigation

Response of juvenile steelhead trout to an instream habitat rehabilitation project in Meadow Creek, Oregon

Chronological variation in soil density and vegetative cover of compacted skid trails in clearcuts of the western Oregon Cascades

Geographic variations in water quality and recreational use along the upper Wallowa River and selected tributaries

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