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

Simulation and field validation of heat and water flow during soil freezing and thawing

Creator:: Pikul, Joseph Lawrence
Abstract:: Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest. Potential loss of soil by erosion is high whenever a soil thaws from the surface creating a saturated soil overlying an impermeable frozen layer. Field studies were conducted to investigate the effect of surface residue on soil freezing. Residue...
Resource Type:: Dissertation
Full Text:: Thawing INTRODUCTION Frozen soil contributes to high rates of soil erosion in the in- land Pacific

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

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

Best management practices for maintaining soil productivity in the Douglas-fir region

Creator:: Angima, S. D., Terry, Thomas A., Dobkowski, Alexander, Campbell, Steve, Grizzel, Jeffrey D., Harrison, Robert B., Heninger, Ronald L., Maguire, Douglas A. (Douglas Alan), Miller, Richard E., Page-Dumroese, Deborah S., Scott, William, Zabowski, D., and Oregon State University. Extension Service
Abstract:: This publication is a reference guide for forest soils productivity and management. Main topics include (1) understanding and managing risk, (2) soil characteristics that affect productivity, (3) soil survey information for forestland managers/management of soil erosion, (4) managing mass wasting risk, (5) managing soil disturbance, and (6) maintaining adequate nutrient...
Resource Type:: Technical Report

Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

Creator:: McGinnis, Megan L.
Abstract:: Forests are one of the largest repositories of terrestrial C. Understanding factors that drive organic matter transformations and nutrient efflux from these systems is therefore highly important. Temperate forests are of particular significance due to the large fraction of C that is stored below ground in the soil. Characterizing nutrient...
Resource Type:: Masters Thesis
Full Text:: -growth Douglas- fir Forests of the Pacific Northwest Abstract Approved: David D. Myrold

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:: of Pacific Northwest native prairies remains today (Noss et al. 1995). The enduring fragments are

Susceptibility of riparian soil invertebrates to the herbicide triclopyr

Creator:: Moran, Patrick (Patrick William)
Abstract:: Riparian zones of Pacific Northwest forests have high species diversity and abundance and act as an important interface between the aquatic and terrestrial ecosystems. In addition, riparian zones comprise a significant portion of the total buffer zone established during commercial forest production to protect aquatic ecosystems from adjacent management activities....
Resource Type:: Masters Thesis
Full Text:: ~~ Riparian zones of Pacific Northwest forests have high species diversity and abundance and act as an

ScholarsArchive@OSU

Erosion and its control in the Northwest

Impacts of forest practices on surface erosion

Simulation and field validation of heat and water flow during soil freezing and thawing

Acidifying soil for crop production : Inland Pacific Northwest

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

Best management practices for maintaining soil productivity in the Douglas-fir region

Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

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

Susceptibility of riparian soil invertebrates to the herbicide triclopyr

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