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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
Full Text:: . Extractable Fe and Mn of playa surface soil and nodules ................ 158 Hydric Soils in Eastern Oregon

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
Full Text:: Abstract approved: J. Herb Huddleston Hydric soils are defined through the hydric soil definition, and a

Origin and age of Fe-Mn-P concretions and nodules in an Oregon wetland

Creator:: Stewart, Scott R.
Abstract:: Wetland soils with complex stratigraphy and redoximorphic features occur on the margin of the Willamette Valley, Oregon. In the Jackson-Frazier wetland, vertisols show three distinct stratigraphic units that rest uncomformably upon each other and correspond to the Bashaw series Bss, 2Bt and 3BC horizons. Holocene alluvium deposited as distal alluvial...
Resource Type:: Dissertation

Hydrology and related soil features of three Willamette Valley wetland prairies

Creator:: Finley, Karen K.
Resource Type:: Masters Thesis
Full Text:: from sunounding soil (Somera 1967). Such morphological characteristics form the basis of hydric soil

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
Full Text:: hydric soils and the hydrologic nature of the Mt. Pisgah Arboretum Water Garden. Soil morphological data

Nature of interlayer material in silicate clays of selected Oregon soils

Creator:: Singleton, P. C.
Abstract:: A study was conducted to investigate the nature of hydroxy interlayers in the chlorite-like intergrade clays of three Oregon soils with respect to kind, amount, stability, and conditions of formation. The clays of the Hembre, Wren, and Lookout soils, selected to represent weathering products originating from basaltic materials under humid,...
Resource Type:: Dissertation
Full Text:: . Oregon researchers have indicated that the presence of inter - grade clay in soil samples may lead to

Cation retention and solute transport related to porosity of pumiceous soils

Creator:: Doak, William Herman, 1941-
Abstract:: Previous studies of pumiceous soils in Oregon indicated that their physical and chemical properties were strongly related to the porous nature of the pumice matrix. Soils developed on air-fall pumice from the eruption of Mt. Mazama (Crater Lake, Oregon) had low thermal conductivities and low volumetric heat capacities. Values for...
Resource Type:: Dissertation
Full Text:: Oregon should reflect these soil chemical and physical properties . Cation Retention and Solute

Water and anion movement in selected soils of western Oregon

Creator:: Hammermeister, Dale P.
Abstract:: Experiments were carried out to study the movement of water and halide anions in perched water tables or saturated zones in the soil and upper rock mantle of eight different experimental sites located on low hills near the western border of the Willamette Valley. At each site the experimental procedure...
Resource Type:: Dissertation
Full Text:: Oregon AN ABSTRACT OF THE THESIS OF Dale Hammermeister for the degree of Doctor of Philosophy in Soil

Morphology and genesis of the Condon, Morrow, and Walla Walla series of the Mid-Columbia basin, Oregon

Creator:: Douglass, John Franklin
Resource Type:: Dissertation

Variations of moisture retention properties and bulk densities of soils between and within soil-mapping units in central Oregon

Creator:: Jibury, Falih Khidir
Abstract:: The objective of this study was to estimate the bulk densities and points on the moisture-tension curves and to determine their associated variances for some of the selected mapping units in Central Oregon. These variances will produce informations concerning the precision of the mean and the optimum sampling schemes, for...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Hydric Soils in Eastern Oregon Temporary Pools

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

Origin and age of Fe-Mn-P concretions and nodules in an Oregon wetland

Hydrology and related soil features of three Willamette Valley wetland prairies

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

Nature of interlayer material in silicate clays of selected Oregon soils

Cation retention and solute transport related to porosity of pumiceous soils

Water and anion movement in selected soils of western Oregon

Morphology and genesis of the Condon, Morrow, and Walla Walla series of the Mid-Columbia basin, Oregon

Variations of moisture retention properties and bulk densities of soils between and within soil-mapping units in central Oregon

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