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Filtering by: Contributor advisor sim Huddleston, J. Herbert Remove constraint Contributor advisor sim: Huddleston, J. Herbert

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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
A model for rating agricultural suitability of land parcels in western Oregon

Creator:

Rogers, William Reinhold

Abstract:

A model was developed that allows potential users to identify the agricultural suitability of parcels of land in western Oregon. Literature was reviewed regarding five possible benefits to be derived from public policies designed to preserve productive agricultural land. They are (1) the provision of sufficient cropland to supply the...

Resource Type:

Masters Thesis
Composition and variability of a Willakenzie map unit in Yamhill County, Oregon

Creator:

Kastens, Marilyn K.

Abstract:

The variability in morphologic, chemical, and physical soil properties within the Willakenzie silty clay loam, 2 to 12 percent slopes, map unit in Yamhill County, Oregon was measured. The objectives of the study included (1) describing the frequency distributions of individual soil properties, (2) measuring the taxonomic composition of the...

Resource Type:

Masters Thesis
Effect of elevation, aspect, canopy, and season on soil temperature measurements for soil classification

Creator:

Green, David L.

Abstract:

The effects of aspect, canopy, elevation, and season both singly and in combination on soil temperatures at 50 cm depths were evaluated. The objectives of the study were (i) to develop a standard procedure for obtaining soil temperature data adequate to classify soils at the family and great group levels,...

Resource Type:

Masters Thesis
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
A soil productivity rating for the irrigated soils of Wallowa County

Creator:

Wiederhold, Kathi M.

Resource Type:

Masters Thesis
A model for determining soil contrast and its application to five different soil orders

Creator:

Villamayor, Faustino Paysan

Abstract:

A well-defined, quantitative model for determining soil contrast was developed to improve soil survey interpretations concerning the effects of mixtures of different kinds of soils on agricultural land use. The model was evaluated by determining the levels and reasons for soil contrast on mapped soil areas representing 5 different landscapes,...

Resource Type:

Dissertation
Investigations of soil morphology, hydrology, reduction-oxidation potentials, and stratigraphy on a selected hillslope in western Oregon

Creator:

Verble, Kathy K.

Abstract:

Hydric soils are defined through the hydric soil definition, and a means to identify hydric soils has been established through hydric soil criteria and Field Indicators of Hydric Soils in the U.S. However, the field indicators are a recent development that requires more research and testing to increase our knowledge...

Resource Type:

Masters Thesis
Hydric Soils in Eastern Oregon Temporary Pools

Creator:

Clausnitzer, David

Abstract:

Two types of temporary poois, known as playas, occur in semiarid southeast Oregon. Vegetated upland playas are found in the High Lava Plain province; barren alkaline-saline playas are found in the Basin and Range province. Both types become ponded in most years, but they often lack redoximorphic features indicative of...

Resource Type:

Dissertation
An edaphic study of the Mt. Pisgah Arboretum water garden, Coast Fork of the Willamette River

Creator:

Bergen, Cameron Francis

Abstract:

Wetlands are widely identified as providing important and fundamental processes valuable for maintaining ecosystem health and diversity. Located in the southern Willamette Valley, the Mt. Pisgah Arboretum contains some valuable remaining wetland habitat along the Coast Fork of the Willamette River. One goal of the Mt. Pisgah Arboretum is "to...

Resource Type:

Masters Thesis

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Academic Affiliation

Soil Science7
Crop and Soil Science4

Advisor

Huddleston, J. Herbert12
Glasmann, Joseph R.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1980 to 2006

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Committee Member

Berry, Ralph1
Childs, Stuart1
Cromack, Kermit1
Froehlich, Henry1
Grabe, D. F.1
more Committee Members »

Creator

Aleshire, Dannelle R.1
Bergen, Cameron Francis1
Clausnitzer, David1
Green, David L.1
Kastens, Marilyn K.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1980 to 2006

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Decade

2000-20093
1990-19992
1980-19897

Degree Field

Soil Science11
BioResource Research1

Degree Level

Master's8
Doctoral3
Bachelor's1

Degree Name

Master of Science (M.S.)8
Doctor of Philosophy (Ph.D.)3
Bachelor of Science (B.S.)1

File Format

application/pdf1

Language

English [eng]12

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Graduate School11
Oregon State University. Bioresource Research1

Peer Reviewed

No12

Resource Type

Masters Thesis8
Dissertation3
Undergraduate Thesis1

Rights Statement

Copyright Not Evaluated10
In Copyright2

Subject

Hydric soils -- Oregon3
Concretions -- Oregon1
Forest soils -- Oregon1
Hydric soils -- Oregon -- Mount Pisgah Arboretum1
Land use, Rural -- Oregon1
more Subjects »

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