Index Catalog // ScholarsArchive@OSU

Root decomposition in three coniferous forests : effects of substrate quality, temperature, and moisture

Creator:: Chen, Hua
Abstract:: Controls of substrate quality, temperature, and moisture on woody root decomposition in the Pacific Northwest were explored using chronosequences, time series, laboratory incubations, and simulation modeling approaches at three sites: Cascade Head (CAH), H. J. Andrews (HJA), and Pringle Falls Experimental Forests (PRF). In the chronosequence study, a structural component-oriented...
Resource Type:: Dissertation

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:: . KEYWORDS: compacted forest soils, Pacific Northwest, site preparation, soil productivity, tillage. ANDRUS

Characteristics of dissolved organic matter (DOM) and its stabilization in forest soil

Creator:: Yano, Yuriko
Abstract:: Dissolved organic matter (DOM) plays an important role in transport of C and essential nutrients such as N, P and S. DOM is also critical for the formation of soil organic matter (SOM), which is the largest terrestrial C pool. Nonetheless, we lack a basic understanding of what controls immobilization...
Resource Type:: Dissertation

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

Applications of Soil Science in Forest Landscape Planning : Challenges and Opportunities in the 21st Century

Creator:: Craigg, Terry Lee
Abstract:: Soils and other resource programs in both public land management agencies and private industry are continually being adapted to the challenges of evolving knowledge and experience in the field of forestry. This dissertation explores new ways of thinking about and using soils information in forest planning and management, with a...
Resource Type:: Dissertation
Full Text:: Pacific Northwest lands. At the core of this work are the concepts of soil quality, in particular, the

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:: of EEA in these Pacific Northwest forest ecosystems (Homann et al., 2001; Spears et al., 2001

Soil respiration, carbon and nitrogen leaching, and nitrogen availability in response to harvest intensity and competing vegetation control in Douglas-fir (Pseudotsuga menziesii) forests of the Pacific Northwest

Creator:: Slesak, Robert A.
Abstract:: Management practices following forest harvest can affect long-term soil productivity through alteration of soil carbon (C) and nitrogen (N) pools, but processes contributing to change are poorly understood. I assessed effects of three levels of logging-debris retention in combination with initial or annual applications of competing vegetation control (CVC) following...
Resource Type:: Dissertation
Full Text:: in Forest Engineering presented on July 28, 2008. Title: Soil Respiration, Carbon and Nitrogen

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:: forest environment typical of the Pacific Northwest, rainfall feeds stream systems largely by

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

ScholarsArchive@OSU

Root decomposition in three coniferous forests : effects of substrate quality, temperature, and moisture

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

Characteristics of dissolved organic matter (DOM) and its stabilization in forest soil

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

Applications of Soil Science in Forest Landscape Planning : Challenges and Opportunities in the 21st Century

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

Soil respiration, carbon and nitrogen leaching, and nitrogen availability in response to harvest intensity and competing vegetation control in Douglas-fir (Pseudotsuga menziesii) forests of the Pacific Northwest

Impacts of forest practices on surface erosion

Acidifying soil for crop production : Inland Pacific Northwest

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