Index Catalog // ScholarsArchive@OSU

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:: study reaches in the Willamette River basin, Oregon, USA………………………………………………………………..15

Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

Creator:: Moore, Kathleen M.
Abstract:: Reservoir systems in the western US are managed to serve two main competing purposes: to reduce flooding during the winter and spring, and to provide water supply for multiple uses during the summer. Because the storage capacity of a reservoir cannot be used for both flood damage reduction and water...
Resource Type:: Dissertation
Full Text:: 21 st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

An investigation of alternative means of achieving water quality objectives

Creator:: Kerri, Kenneth Donald
Abstract:: Storage of water for water quality control is one of the alternative means of achieving water quality objectives. Authorities in the field of water quality management disagree regarding the use of precious water for the dilution of wastes. The costs of achieving water quality objectives by treatment of wastes at...
Resource Type:: Dissertation
Full Text:: . Different levels of water quality and fluctuating flows of the Willamette River in Oregon during the 1963

Benthic algal flora of four rivers of the middle Willamette River Basin

Creator:: Todd, Leona Esther
Abstract:: Fresh-water benthic river algae were collected from selected sites in Willamette River tributaries; two sampling sites were in the Yamhill River system and four sampling sites were in the Santiam River system. Twelve samples were taken at each collection site in the Yamhill River system at approximately monthly intervals from...
Resource Type:: Dissertation
Full Text:: Santiam River (S) and the South Santiam River (SS) occur in the Middle Willamette River Basin (Oregon

The application of spatial data analysis and visualization in the development of landscape indicators to assess stream conditions

Creator:: Buckley, Aileen R.
Abstract:: The main theme of this research is the application of geographic techniques in a study involving environmental monitoring and analysis of the associations between landscape and in-stream characteristics in the Pacific Northwest. The geographic techniques used in this study include (1) geographic information systems (GIS) coupled with statistical analysis and...
Resource Type:: Dissertation
Full Text:: sampling sites and their respective watersheds in the Willamette River Basin of western Oregon. The

Land cover change along the Willamette River, Oregon

Creator:: Oetter, Doug Rudolph, 1962-
Abstract:: The Willamette River and its floodplain in northwest Oregon have changed dramatically since European settlement. At one time, the river was a vast complex system of braided channels with a broad floodplain forest; it has now been simplified by channelization and dams, and the forest has been removed to support...
Resource Type:: Dissertation

The physiology ecology and run diversity of adult Pacific lamprey, Entosphenus tridentatus, during the freshwater spawning migration

Creator:: Clemens, Benjamin J.
Abstract:: Pacific lamprey, Entosphenus tridentatus, have shown recent and rapid declines in abundance. These anadromous fish return to streams where they mature, spawn and die. It has been inferred that Pacific lamprey enter freshwater and reside for ~ 1 year before spawning. This long exposure to the freshwater environment may affect...
Resource Type:: Dissertation
Full Text:: -spawning migration of adult Pacific lamprey, Entosphenus tridentatus, in the Willamette River, Oregon

The development and analysis of future agricultural landscapes

Creator:: Berger, Patricia A.
Abstract:: Alternative futures studies provide a way for policy-makers and stakeholders to investigate the future impacts of different management strategies by providing representations of possible outcomes. An alternative futures study was undertaken by the Pacific Northwest-Ecosystem Research Consortium for the Willamette River Basin, Oregon, USA, to determine how this regional system...
Resource Type:: Dissertation
Full Text:: Willamette River Basin, Oregon, USA. 1.1 RESEARCH PROBLEM The Willamette River Basin has an area of

Social Learning and Adaptive Capacity in Collaborative Watershed Partnerships

Creator:: Calvert, Daniel T.
Abstract:: This dissertation examines learning driven adaptations in salmon recovery efforts and water resources management in Oregon. The case study utilizes a framework highlighting the connections between human and natural systems. Semi-structured interviews are used to analyze interactions between rural riparian landowners and watershed council staffs living and working in Oregon’s...
Resource Type:: Dissertation
Full Text:: landowners and watershed council staffs living and working in Oregon’s Upper Willamette River basin

ScholarsArchive@OSU

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

Optimizing Reservoir Operations to Adapt to 21st Century Expectations of Climate and Social Change in the Willamette River Basin, Oregon

An investigation of alternative means of achieving water quality objectives

Benthic algal flora of four rivers of the middle Willamette River Basin

The application of spatial data analysis and visualization in the development of landscape indicators to assess stream conditions

Land cover change along the Willamette River, Oregon

The physiology ecology and run diversity of adult Pacific lamprey, Entosphenus tridentatus, during the freshwater spawning migration

The development and analysis of future agricultural landscapes

Social Learning and Adaptive Capacity in Collaborative Watershed Partnerships

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