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Genesis of some soils in the central western Cascades of Oregon

Creator:: Brown, R. B.
Abstract:: Soils representative of several landscape units in the H. J. Andrews Experimental Forest, Western Cascade Range, were sampled, analyzed, and tentatively classified. Genetic inferences were drawn relating soils to landscape position and other factors of soil formation. Descriptive information and nutrient capital data were provided to support ecosystem modelling efforts...
Resource Type:: Masters Thesis
Full Text:: separates snow-blanketed and non-snow-blanketed regions in the United States in winter. Contrasting angles

The effects of gypsum on infiltration and surface properties of some western Oregon soils

Creator:: Pronold, Michael Joseph
Abstract:: The effects of broadcast gypsum on infiltration rates, crusting, aggregate stability, and runoff and sediment yields were analyzed during the winter months on three West Oregon soils. The results were used to evaluate its utility as a management tool to help control erosion. An application rate of two metric tons...
Resource Type:: Masters Thesis
Full Text:: all land in the United States as moderately eroded, and 15% either as severe or destroyed for

Extractable forms of Al and Fe in acid Western Oregon soils

Creator:: Spycher, Gody
Abstract:: Extractable forms of Al and Fe were studied in five soils from the Coast Range, and in two soils from the Willamette Valley in Oregon. Exchangeable Al was determined in a way which permitted a comparison of three different methods for its determination. Values for exchangeable Al obtained by the...
Resource Type:: Masters Thesis
Full Text:: higher in grassland soils than in forest soils. The total amounts of Al and Fe correlate fairly well

Soil moisture and temperature relationships under fallow in eastern Oregon

Creator:: Russelle, Michael P.
Abstract:: Time of stand establishment is a critical factor affecting yields of winter wheat and barley in the fallow-crop rotation areas of the Pacific Northwest. Farmers in this winter-rainfall region are dependent on residual moisture in the seed zone for germination, because significant precipitation does not usually occur until after the...
Resource Type:: Masters Thesis
Full Text:: the fallow-crop rotation areas of the Pacific Northwest. Farmers in this winter-rainfall region are

Rainfall, surface sealing, runoff, and erosion on Jory soil series in western Oregon

Creator:: King, Joel Thomas
Resource Type:: Masters Thesis
Full Text:: . In the United States, an area larger than the state of Missiouri has been damaged by 2 erosion

Distribution and characteristics of loess-like soil parent material in northwestern Oregon

Creator:: Theisen, A. A. (Arthur A.)
Resource Type:: Masters Thesis
Full Text:: the Troutdale formation. A recent map of the Pleistocene eolian deposits of the United States

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Creator:: Culver, Roger Norman
Abstract:: As the management of range lands is intensified or as improvement activity is increased, a critical need is seen to refine the understanding of the ecology of these lands. If soil surveys on range lands are to be meaningful and useful, the relationship between the fundamental ecological units and the...
Resource Type:: Masters Thesis
Full Text:: CENTRAL OWYHEE UPLANDS OF OREGON by ROGER NORMAN CULVER A THESIS submitted to OREGON STATE

Relationships among phosphorus soil tests, forms of soil phosphorus, and plant uptake of phosphorus for selected southwestern Oregon soils

Creator:: Doerge, Thomas A.
Abstract:: A diversity in climate, geologic parent material, and soil characteristics exist in Jackson, Josephine, Coos, and Douglas Counties of southwest Oregon. Previous field trials and soil testing results have revealed uncertainties as to the phosphorus (P) status of the soils in this area. Twenty-four sites from nine agriculturally significant soil...
Resource Type:: Masters Thesis
Full Text:: characteristics, and account for well over half of all of the P soil testing done in the United States (Bingham

Readily available manganese in some Oregon soils and its relation to certain other soil factors

Creator:: Kirsch, R. K. (Richard Kneale), 1923-
Abstract:: With agriculture continuing to play an ever-increasing role in our modern economy, more and more attention is being directed toward the hitherto more or less neglected finer points of crop production. In the past it has been the tendency to concentrate research on those factors which most obviously affect agricultural...
Resource Type:: Masters Thesis
Full Text:: topography the state of Oregon has been separated into six differing agricul- turai regions: Coast Region

Effects of cultivation and organic treatments on some physical properties of western Oregon soils

Creator:: Appleton, Leonard Roald
Resource Type:: Masters Thesis
Full Text:: diao.ba:r&ecl into the sea annually b7 st.re-ams and riTel's ot the United -States. Ka47 st.udiea have

Thin-section micromorphology of eight Oregon soils

Creator:: Norgren, Joel A.
Resource Type:: Masters Thesis
Full Text:: range of soils within the state. Since the Soil Conservation Service and Oregon Agricultural

ScholarsArchive@OSU

Genesis of some soils in the central western Cascades of Oregon

The effects of gypsum on infiltration and surface properties of some western Oregon soils

Extractable forms of Al and Fe in acid Western Oregon soils

Soil moisture and temperature relationships under fallow in eastern Oregon

Rainfall, surface sealing, runoff, and erosion on Jory soil series in western Oregon

Distribution and characteristics of loess-like soil parent material in northwestern Oregon

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Relationships among phosphorus soil tests, forms of soil phosphorus, and plant uptake of phosphorus for selected southwestern Oregon soils

Readily available manganese in some Oregon soils and its relation to certain other soil factors

Effects of cultivation and organic treatments on some physical properties of western Oregon soils

Thin-section micromorphology of eight Oregon soils

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