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Analysis of variability of some forest soils in southwestern Oregon

Creator:: Wicherski, Bruce P.
Abstract:: The variability of selected physical, chemical, and morphological soil properties in two landtype mapping units on'the Rogue River National Forest in southwestern Oregon was studied. The objectives of the study were (i) to quantify soil variability in several soil resource inventory mapping units, (ii) to explore methods of describing soil...
Resource Type:: Masters Thesis
Full Text:: Soil Science presented on August 29, 1980 Title: Analysis of Variability of Some Forest Soils in

Low molecular weight organic acids in forest soils

Creator:: Hayden, John
Abstract:: Two studies concerning low molecular weight organic acids in soils were conducted. In the first study, anion exclusion chromatography was used to separate and identify 12 common organic acids, and the accuracy, precision and detection limits of the method were determined. The method was found to be sensitive and accurate...
Resource Type:: Masters Thesis
Full Text:: second study, the reaction of a forest soil with oxalic acid at four concentrations was monitored for

Soil physical properties and available water capacity of southwest Oregon forest soils

Creator:: Flint, Alan L.
Abstract:: Measurements for water retention calculations and physical characterization were made on skeletal and non-skeletal soils in southwest Oregon. A new bulk density sampler was designed for the physical characterization of the steep, skeletal soils commonly encountered in this area. The new sampler and the techniques required for the measurement and...
Resource Type:: Masters Thesis
Full Text:: Properties of southwest Oregon Forest Soils. 44 2 Correlation matrix for soil physical properties 46 and

Consolidation, compression, and shear strength of four western Oregon forest soils

Creator:: McNabb, David H.
Abstract:: Forest soils with low bulk densities are often considered less susceptible to compaction than soils with higher bulk densities. The objective of this study was to determine if soil strength controlled the compression of soils with low bulk density. Four soils were selected for this evaluation. Three of these were...
Resource Type:: Dissertation
Full Text:: . III. 1. Relationship between bulk density of a sample of western Oregon forest soil, predicted with

Soil variability on steep, skeletal forested slopes of the Umpqua National Forest, Oregon

Creator:: Myhrum, Ronald P.
Abstract:: This study was undertaken to determine both the amount and the spatial variability of sand, silt, clay, and six fractions of coarse fragments in soils representing harsh sites for reforestation. Particle size data were collected because of their direct relationship to water holding capacity and the plantability and survivability of...
Resource Type:: Masters Thesis
Full Text:: Page 1 Coefficient of Variation of Soil Properties from Selected Forest Soil Research 7 2 Summary

Surface erosion on a clearcut in the Willamette National Forest

Creator:: George, Danella
Resource Type:: Masters Thesis
Full Text:: Forest AN ABSTRACT OF THE THESIS OF renella George for the degree of Master pi Science in Soil

Soil genesis, classification, and nitrogen cycling in forest ecosystems of the northwestern Rif region of Morocco

Creator:: Ben Jelloun, Hassane
Resource Type:: Dissertation
Full Text:: Soil genesis, classification, and nitrogen cycling in forest

Quantifying C and N contents and isotope signatures of SOM pools in the H. J. Andrews DIRT plots

Creator:: Keirstead, Heath
Abstract:: The mechanisms governing short- and long-term belowground carbon dynamics need to be understood. As part of a larger project developed to assess the effect of quantity and quality of litter inputs on the rate of soil organic matter (SOM) formation, I examined SOM in the H. J. Andrews Detritus Input...
Resource Type:: Masters Thesis
Full Text:: examine the influence of temperature on forest soil decomposition predicted by models such as Century

Predicting the spatial variability in soil properties using DSM across Malheur National Forest

Creator:: Seeno, Elizabeth A.
Abstract:: Soil properties may hold the key to improved predictions of soils during digital soil mapping (DSM), which has developed with a focus on environmental factors external to soil. The spatial variability in soil properties was modeled across Malheur National Forest in eastern Oregon as an approach to improve DSM. The...
Resource Type:: Masters Thesis
Full Text:: spatial variability in soil properties using DSM across Malheur National Forest Abstract approved

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

Creator:: Diaz, David D.
Abstract:: Soils are a globally significant carbon (C) pool and have the potential to respond to elevated CO2 and environmental changes through positive feedback cycles that enhance the turnover of soil organic matter (SOM). Understanding the mechanisms governing the turnover of SOM is particularly important for modeling the fate of C...
Resource Type:: Masters Thesis
Full Text:: May 1, 2008. Title: Carbon Cycling and Priming of Soil Organic Matter Decomposition in a Forest

ScholarsArchive@OSU

Analysis of variability of some forest soils in southwestern Oregon

Low molecular weight organic acids in forest soils

Soil physical properties and available water capacity of southwest Oregon forest soils

Consolidation, compression, and shear strength of four western Oregon forest soils

Soil variability on steep, skeletal forested slopes of the Umpqua National Forest, Oregon

Surface erosion on a clearcut in the Willamette National Forest

Soil genesis, classification, and nitrogen cycling in forest ecosystems of the northwestern Rif region of Morocco

Quantifying C and N contents and isotope signatures of SOM pools in the H. J. Andrews DIRT plots

Predicting the spatial variability in soil properties using DSM across Malheur National Forest

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

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