Index Catalog // ScholarsArchive@OSU

Agricultural impacts on amphibian survival, growth, and distributions

Creator:: Baker, Nick J.
Abstract:: The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater systems and are currently experiencing worldwide population declines. Global amphibian declines may be attributed to a number of causes, including habitat loss,...
Resource Type:: Masters Thesis
Full Text:: Simpson’s Diversity Index. In the Calapooia watershed the value of this index increased when conservation

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Creator:: Floyd, William C.
Abstract:: The Calapooia River, a major tributary of the Willamette River in western Oregon, is a watershed typical of many found in the Willamette Basin. Public and private forested lands occur in the steep Upper Zone of the watershed, mixed forest and agriculture lands are found in the Middle Zone, and...
Resource Type:: Masters Thesis
Full Text:: woody vegetation, agriculture or soil hydrogroup D in spring 2003-2004, Calapooia Watershed, Oregon

Dissolved nitrogen in surface waters and nitrogen mineralization in riparian soils within a multi-land use basin

Creator:: Evans, Daniel M.
Abstract:: The growing population of Oregon’s Willamette River Basin places an increasing demand on the basin’s surface waters. Watershed-scale research addressing spatial trends of dissolved nitrogen (DN) and its relationship with landuse and soil N dynamics, such as N mineralization, is sparse in the Willamette Basin. I measured DN along 124...
Resource Type:: Masters Thesis
Full Text:: ) against annual net mineralization per kg of soil in 27 riparian areas along the Calapooia River, Oregon

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Creator:: Fernando, M.F. Sydney W.
Resource Type:: Dissertation
Full Text:: central Oregon. The use of winter cover crops to reduce residual soil NO3- N has been studied previously

Yaquina River Basin fish management plan

Creator:: Borgerson, Lisa A., Stewart, Nelson E., Jones, Kim K., Mamoyac, Steven R., and Oregon. Department of Fish and Wildlife
Abstract:: "The Fish Management Policy of the Oregon Department of Fish and Wildlife (ODFW) directs that management plans will be prepared for each basin or management unit for the purpose of recording ongoing management and guiding future management of fish and shellfish and their habitat...The Yaquina Plan identifies objectives and activities...
Resource Type:: Technical Report
Full Text:: YAQUINA RIVER BASIN Fish Management Plan Oregon Department

Salmon River Basin fish management plan

Creator:: Oregon. Department of Fish and Wildlife
Resource Type:: Book
Full Text:: SALMON RIVER BASIN FISH MANAGEMENT PLAN Oregon Department of Fish and Wildlife November 1997 TABLE

A spatially explicit model for allocating conservation efforts : the Grand Ronde River basin, Oregon

Creator:: Watanabe, Michio
Abstract:: The spatial and dynamic pattern of landscape changes has a profound effect on the supply of environmental services, including the provision of habitat for fish and wildlife. Spatial heterogeneity is a common feature of landscapes in the Pacific Northwest, most notably in areas important to the production of salmonid fish...
Resource Type:: Masters Thesis
Full Text:: Allocating Conservation Efforts: The Grande Ronde River Basin, Oregon by Michio Watanabe A

The optimal allocation of watershed conservation funding : a case study of the John Day River Basin, Oregon

Creator:: Skelton, Katharine
Abstract:: This study determines the optimal allocation of watershed conservation funds in the John Day River Basin, Oregon. Fund managers can use a variety of targeting schemes to allocate their limited resources. Depending on which targeting criteria is used, they may or may not be achieving the maximum environmental benefits per...
Resource Type:: Masters Thesis
Full Text:: the John Day River Basin, Oregon 131 The Optimal Allocation of Watershed Conservation Funding: A

State of weathering of some upland soils in the Alsea Basin, Oregon

Creator:: Rojanasoonthon, Santhad
Abstract:: Mineralogical analysis of 3 upland soil profiles over Tyee parent rock from the Alsea Basin Area, Oregon showed clear differences among the 4 soil series represented. Soils from the area of higher precipitation (over 80 inches, approximately) had no montmorillonite, lower base saturation and cation exchange capacity, but no lower...
Resource Type:: Masters Thesis
Full Text:: upland soil profiles over Tyee parent rock from the Alsea Basin Area, Oregon showed clear differences

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:: , Middle Fork Willamette, Calapooia, South Santiam and North Santiam River watershed councils. Their time

ScholarsArchive@OSU

Agricultural impacts on amphibian survival, growth, and distributions

Seasonal relationships between dissolved nitrogen and landuse/landcover and soil drainage at multiple spatial scales in the Calapooia Watershed, Oregon

Dissolved nitrogen in surface waters and nitrogen mineralization in riparian soils within a multi-land use basin

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Yaquina River Basin fish management plan

Salmon River Basin fish management plan

A spatially explicit model for allocating conservation efforts : the Grand Ronde River basin, Oregon

The optimal allocation of watershed conservation funding : a case study of the John Day River Basin, Oregon

State of weathering of some upland soils in the Alsea Basin, Oregon

Social Learning and Adaptive Capacity in Collaborative Watershed Partnerships

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