Index Catalog // ScholarsArchive@OSU

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

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Creator:: Bodner, Josef
Abstract:: The purpose of this study was to determine if thinning, fertilization or a combination of thinning and fertilization had an effect on overall average specific gravity, modulus of elasticity, modulus of rupture, fiber length and intra-ring characteristics. Material for this experiment consisted of 7 trees randomly selected from each of...
Resource Type:: Masters Thesis
Full Text:: LITERATURE REVIEW 3 Effect of Thinning and Fertilization on Forest Stand 3 Yield and Growth Effect of

Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon

Creator:: Mason, Richard R., Wickman, B. E., Paul, H. G., and Torgersen, T. R.
Abstract:: Mixed-conifer stands of grand fir (Abies grandis (Dougl. ex D. Don) Lindl., Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco), and ponderosa pine (Pinus ponderosa Dougl. ex Laws.) were fertilized with nitrogen and combination treatments of nitrogen, phosphorus, potassium, and sulfur to test their effects on trees and associated insects during...
Resource Type:: Technical Report

Natural fertilization of a heavily thinned Douglas-fir stand by understory red alder

Creator:: Berg, Alan B., Doerksen, Allan, and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: RESEARCH NOTE No. 56 1975 School of Forestry Forest

Comparative effects of precommercial thinning, urea fertilizer, and red alder in a site 11, coast Douglas-fir plantation

Creator:: Miller, Richard E., Obermeyer, Edmund L., and Anderson, Harry William
Abstract:: The authors varied the number of red alder retained with 300 Douglas-fir per acre on a high-quality site in coastal Oregon. Alder densities of 0, 20, 40, and 80 per acre were tested. The authors' fifth treatment eliminated nitrogen-fixing alder, but substantial nitrogen fertilizer. Treatment 6 had neither thinning nor...
Resource Type:: Technical Report

Seedling survival, mycorrhiza development and rhizosphere biology of Pseudotsuga menziesii seedlings outplanted on a degraded forest site in southwestern Oregon

Creator:: Colinas, Carlos
Abstract:: Inoculation of planting holes with small amounts of soil from a mature forest and a plantation improved survival and growth of Pseudotsuga menziesii seedlings in a degraded clear-cut in southwestern Oregon. To determine the component(s) of the transferred soil responsible for survival and growth increases, we treated forest, plantation and...
Resource Type:: Dissertation

Compaction of forest soils

Creator:: Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension Service, Adams, Paul W., Froehlich, Henry A., and Pacific Northwest Cooperative Extension
Abstract:: Published December 1981. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: operations. The use of machinery on the forest site, however, can significantly alter some important soil

Soil-site relationships in second growth Douglas-fir stands in the central Oregon coast range

Creator:: Urie, Dean Howard
Resource Type:: Masters Thesis
Full Text:: INVESTIGAI IONS Attempts to classify forest land according to produc- tivity by use of soil

A method of forest soil-site quality investigation

Creator:: Collins, Dana Huntley
Resource Type:: Masters Thesis

Hydrologic properties of soil and subsoil on a steep, forested slope

Creator:: Ranken, Darrel Wesley
Abstract:: The purpose of this study was to examine certain hydrologic properties of the soil and subsoil on a steep forested slope and relate these -rceTties to the movement of water via subsurface routes. The hydrologic properties examined were bulk density, soil texture, total porosity, pore size distribution, saturated hydraulic conductivity,...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

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

Effect of thinning and fertilization on wood properties and intra-ring characteristics in young Douglas-fir

Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon

Natural fertilization of a heavily thinned Douglas-fir stand by understory red alder

Comparative effects of precommercial thinning, urea fertilizer, and red alder in a site 11, coast Douglas-fir plantation

Seedling survival, mycorrhiza development and rhizosphere biology of Pseudotsuga menziesii seedlings outplanted on a degraded forest site in southwestern Oregon

Compaction of forest soils

Soil-site relationships in second growth Douglas-fir stands in the central Oregon coast range

A method of forest soil-site quality investigation

Hydrologic properties of soil and subsoil on a steep, forested slope

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