Index Catalog // ScholarsArchive@OSU

The suspended sediment regimes of two small streams in Oregon's Coast Range

Creator:: Paustian, Steven Julius
Abstract:: The protection of water quality and the maintenance of productive anadromous fisheries is a primary concern in the Pacific Northwest. Excessive suspended sediment loads is a principle water quality problem on small wildland watersheds in this region (Anderson, 1971; Brown, 1972). Man's activities have been shown to increase sedimentation rates...
Resource Type:: Masters Thesis

Coarse woody debris in streams of the Drift Creek Basin, Oregon

Creator:: Veldhuisen, Curt N.
Abstract:: This study examined the occurrence of coarse woody debris (i.e., pieces greater than 0.15 m in diameter and 2.0 m in length) in first- through fifth-order streams located within the Drift Creek Basin of the Oregon Coast Range. Nine "tributary reaches" were surveyed to determine how three land management treatments...
Resource Type:: Masters Thesis

Summertime stream temperatures in the North and South Forks of the Sprague River, south central Oregon

Creator:: Friedrichsen, Paul T.
Abstract:: The Upper Sprague River Watershed (North and South Forks of the Sprague River) in south central Oregon provides important habitat for salmonid species, including native bull trout (Salvelinus confluentus) and redband trout (Oncorhynchus mykiss ssp.). Concern over the loss of viable habitat for these species has increased due to reductions...
Resource Type:: Masters Thesis
Full Text:: stream ecosystems are important to both the economy and the culture. In Oregon, concerns have generally

Channel morphology and hydraulic characteristics of torrent-impacted forest streams in the Oregon Coast Range, U.S.A.

Creator:: Kaufmann, Philip Robert
Abstract:: Tracer-derived estimates of hydraulic resistance and transient hydraulic storage were related to measures of pool volume and channel morphometric variability in small streams of the Oregon coast, U.S.A. Fourteen 100 m study reaches in 3 streams were selected to compare channel and hydraulic characteristics in streams representing a time series...
Resource Type:: Dissertation

Forest harvesting impacts on coarse woody debris and channel form in central Oregon streams

Creator:: Knight, Stephen M.
Abstract:: Several streams in the mixed conifer cover type of the Ochoco and Blue Mountains of central Oregon were studied to determine what effects selective harvesting of the riparian timber stand had on the amounts and distribution of coarse woody debris (CWD) in the stream. Pristine streams were measured to develop...
Resource Type:: Masters Thesis
Full Text:: harvested third to fifth order stream channels in the mixed conifer cover type of central Oregon. To

The influence of contemporary forest harvesting on summer stream temperatures in headwater streams of Hinkle Creek, Oregon

Creator:: Kibler, Kelly Maren
Abstract:: Stream temperature is a water quality parameter that directly influences the quality of aquatic habitat, particularly for cold-water species such as Pacific salmonids. Forest harvesting adjacent to a stream can increase the amount of solar radiation the stream receives, which can elevate stream temperatures and impair aquatic habitat. Oregon Forest...
Resource Type:: Masters Thesis
Full Text:: Streams of Hinkle Creek, Oregon. Abstract approved: Arne E. Skaugset Stream temperature

Recruitment and abundance of large woody debris in an Oregon coastal stream system

Creator:: Long, Barry A.
Abstract:: Research was conducted in the Oregon Coast Range to address the concern that conversion of large diameter old-growth forests to small diameter second-growth forests would lead to reduction of large woody debris in adjacent stream channels. The objective of the study was to quantify spatial trends in large woody debris...
Resource Type:: Masters Thesis

Modeling the impact of logging debris on the dissolved oxygen balance of small mountain streams

Creator:: Berry, John David
Abstract:: Previous research has indicated that considerable amounts of finely divided slash accumulate in small mountain streams following timber harvesting. The subsequent biological decomposition of this organic matter can result i.n the reduction of dissolved oxygen (DO) concentration to levels as low as 0.6 ppm. These DO levels are lethal to...
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

The spatial and temporal variability of nitrate in streams of the Bull Run Watershed, Oregon

Creator:: Bakke, Paul D.
Abstract:: An 18-year record of nitrate (NO₃), orthophosphate, total nitrogen and total phosphorus in four streams of the Bull Run watershed, Oregon, was examined to determine its precision and time resolution. Of these four species, only NO₃ was found to be known to a sufficient level of detail for modeling and...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

The suspended sediment regimes of two small streams in Oregon's Coast Range

Coarse woody debris in streams of the Drift Creek Basin, Oregon

Summertime stream temperatures in the North and South Forks of the Sprague River, south central Oregon

Channel morphology and hydraulic characteristics of torrent-impacted forest streams in the Oregon Coast Range, U.S.A.

Forest harvesting impacts on coarse woody debris and channel form in central Oregon streams

The influence of contemporary forest harvesting on summer stream temperatures in headwater streams of Hinkle Creek, Oregon

Recruitment and abundance of large woody debris in an Oregon coastal stream system

Modeling the impact of logging debris on the dissolved oxygen balance of small mountain streams

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

The spatial and temporal variability of nitrate in streams of the Bull Run Watershed, Oregon

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