Index Catalog // ScholarsArchive@OSU

Erosion and its control in the Northwest

Creator:: Winn, Merle
Resource Type:: Undergraduate Thesis
Full Text:: through the Pacific Northwest wheat belt. Wheat straw when mixed in the surface soil offers

Impacts of forest practices on surface erosion

Creator:: Sidle, Roy C.
Abstract:: Surface erosion can be initiated by forest practices such as timber harvest, road construction, and site preparation. A variety of management and control measures can help reduce this erosion. Surface erosion is generated by soil and operational conditions that are conducive to or cause disturbance and compaction. By using good...
Resource Type:: Technical Report
Full Text:: in Pacific Northwest Clearcuts Yarding method Bare soil Compacted soil Percent Percent Tractor

Provenance, lifespan, and phylogeny : testing a conceptual framework for plant community management

Creator:: Benfield, Cara D.
Abstract:: Successful conservation management requires an understanding of how species respond to intervention. Native and exotic species may respond differently to management interventions due to differences arising directly from their native or exotic origin (i.e., provenance) or from differences in life-history or phylogenetic lineage that are associated with provenance. Thus, selection...
Resource Type:: Masters Thesis
Full Text:: sources of support: the Pricilla Bullitt Collins Trust, Northwest Conservation Fund and The Nature

Strip tillage for high-residue irrigated cropping systems

Creator:: Norberg, O. Steven and Oregon State University. Extension Service
Abstract:: Strip tillage is a conservation tillage system that was developed for row crops grown in heavy, poorly drained cool soils in the northern corn belt states, but which some Pacific Northwest farmers are adapting to their local conditions. This publication provides information on strip tillage compared with conventional tillage, in...
Resource Type:: Technical Report
Full Text:: corn belt states, but which some Pacific Northwest farmers are adapting to their local conditions

Acidifying soil for crop production : Inland Pacific Northwest

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Horneck, Donald Arthur, Wysocki, Donald John, 1952-, Hopkins, Bryan G., Hart, John M. (John Mervyn), 1947-, Stevens, Robert G., and Pacific Northwest Cooperative Extension
Abstract:: This publication is a technical and practical guide for soil acidification in commercial fields. It explains the soil chemistry involved, how to determine whether pH adjustment is feasible, and methods for acidifying soil. This guide is divided into five sections: • Understanding soil pH • The problem—iron chlorosis • Causes...
Resource Type:: Technical Report
Full Text:: Acidifying Soil for Crop Production: Inland Pacific Northwest

Salmon recovery in the Pacific Northwest : defining what constitutes a wild salmon

Creator:: Courter, Ian I.
Abstract:: In spite of considerable efforts to restore natural runs of anadromous salmonids in the Pacific Northwest, they remain at risk of extirpation. Along with many other factors influencing the decline, stocking from hatcheries over the past hundred years is often suggested to be a major cause. The listing of over...
Resource Type:: Masters Thesis
Full Text:: , advocates for the conservation, protection, and restoration of native fishes in the Pacific Northwest, and

Assessing the feasibility of policy prescriptions in the Salmon 2100 Project

Creator:: Whitehead, Katharine S.
Abstract:: Wild salmon populations are in decline in the Pacific Northwest. In the region populations and runs of Chinook (Oncorhynchus tshawytsha), Chum (Oncorhynchus keta), Coho (Oncorhynchus kisutch), Sockey (Oncorhynchus nerka), and Steelhead (Oncorhynchus mykiss) have been listed as threatened and/or endangered under the Endangered Species Act (ESA) in the U.S. and/or...
Resource Type:: Capstone Project
Full Text:: : _____________________________________________________________________ Denise H. Lach Wild salmon populations are in decline in the Pacific Northwest. In the

An evaluation of four implements used to till compacted forest soils in the Pacific Northwest

Creator:: Andrus, Charles W., Froehlich, Henry A., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: Pacific Northwest to attempt to rehabilitate the soil in skid trails and landings. Tillage of the soil

Influences of nitrogen on carbon dynamics in forest soil and density fractions

Creator:: Swanston, Christopher W.
Abstract:: Application of N fertilizer is a common forest management practice in the Pacific Northwest, yet the long-term influence of fertilization on forest soil properties is not well known. Although elevated N often increases mineralization of C and N from labile organic matter, negative effects have been documented in recalcitrant organic...
Resource Type:: Dissertation

Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

Creator:: Meinke, Robert James
Abstract:: The Mimulus washingtonensis complex is a group of morphologically similar species centered in the Pacific Northwest. All are rare, and most are under consideration for listing as endangered. Morphometric and pollination data were used in developing a revised taxonomy for the group. Five species and two varieties are recognized. Mimulus...
Resource Type:: Dissertation
Full Text:: (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology AN ABSTRACT OF THE THESIS OF

ScholarsArchive@OSU

Erosion and its control in the Northwest

Impacts of forest practices on surface erosion

Provenance, lifespan, and phylogeny : testing a conceptual framework for plant community management

Strip tillage for high-residue irrigated cropping systems

Acidifying soil for crop production : Inland Pacific Northwest

Salmon recovery in the Pacific Northwest : defining what constitutes a wild salmon

Assessing the feasibility of policy prescriptions in the Salmon 2100 Project

An evaluation of four implements used to till compacted forest soils in the Pacific Northwest

Influences of nitrogen on carbon dynamics in forest soil and density fractions

Systematic and reproductive studies of Mimulus (Scrophulariaceae) in the Pacific Northwest : implications for conservation biology

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