Index Catalog // ScholarsArchive@OSU

Overland flow and sediment production potentials in logged and nonlogged sites of a ponderosa pine forest in northeastern Oregon

Creator:: Williams, John Dana
Abstract:: The purpose of this research was to determine if overland flow and sediment production were different in logged (on snow, frozen soil, and prescribed skid trails) and nonlogged sites in a Pinus ponderosa Laws.! Symohoricaroos albus Laws. community in the foothills of the Wallowa Mountains in northeastern Oregon. To determine...
Resource Type:: Masters Thesis
Full Text:: world of research. My thanks to John Zuzel and Rich Greenwalt of the Pendleton, USDA-Agriculture

Storm runoff characteristics of various plant communities within the Oregon Range Validation Area

Creator:: Gaither, Ronald E.
Abstract:: A sediment production and infiltration study was conducted within the Oregon Range Validation Project Work Area in east-central Oregon during the summers of 1977 and 1978. High intensity rainfall was simulated by using a Rocky Mountain Infiltrometer. This sprinkler-type infiltrometer closely approximates conditions associated with natural rainfall. The basic ecological...
Resource Type:: Masters Thesis
Full Text:: Appreciation is due the U.S.D.A., Forest Service, Pacific Northwest Forest and Range Experimental Station

Prescribed fire effects on vegetation and arthropod dynamics, and sampling techniques in a Wyoming big sagebrush community

Creator:: Rhodes, Edward C.
Abstract:: In the western United States, sagebrush (Artemisia spp L.) dominated rangelands are extensive, accounting for approximately 63 million ha. The Wyoming big sagebrush (Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young) alliance is found in more xeric environments, occupying the largest area of the big sagebrush complex in areas within...
Resource Type:: Masters Thesis
Full Text:: . USDA Forest Service General Technical Report PSW-109. DeBano, L.F. 2000. Fire-induced water repellency

Watershed response to western juniper control

Creator:: Deboodt, Timothy L.
Abstract:: Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a...
Resource Type:: Dissertation
Full Text:: to U.S. Forest Service publication PNW-RB-249, The Western Juniper Resource of Eastern Oregon

Sediment potentials for selected ecological land units in central Oregon

Creator:: Mattison, Jeffrey L.
Abstract:: During the summers of 1975 and 1976 a sedimentation study was conducted in the Bear Creek watershed, located in the southeastern corner of Crook County, in central Oregon. The Rocky Mountain infiltrometer was used to simulate high intensity rainfall over 468 sedimentation plots. Rainfall and runoff were measured and a...
Resource Type:: Masters Thesis
Full Text:: the Forest Service would act as a mediator in their grazing disputes. The primary objective of the

Application of stream classification and historical land uses for managed riparian systems of Eastern Oregon

Creator:: Zweygardt, Louanne R.
Abstract:: Twelve stream segments in the Silvies River drainage system were classified in the fall of 1993 and again in 1994, using a morphological classification of natural rivers (Rosgen 1994). Bankfull flow of stream channels is the key feature of this system. Measurement of bankfull is used in the calculation of...
Resource Type:: Masters Thesis
Full Text:: Miller 1960, Andrews 1983, Emmett 1975, USDA Forest Service 1985). Those streams which are not self

Analysis of hydrology and erosion in small, paired watersheds in a juniper-sagebrush area of central Oregon

Creator:: Fisher, Michael, (Michael Patrick), 1966-
Abstract:: Current research indicates that the expansion of western juniper can inhibit soil water retention, storage and prolonged releases from watersheds. This phenomenon is of great importance in eastern Oregon, as western juniper is encroaching into sagebrush/grass communities with a correlated reduction in herbaceous ground cover, resulting in reduced infiltration rates...
Resource Type:: Dissertation
Full Text:: technical and physical support, such as the BLM and the Forest Service, in particular John Swanson, Larry

The response of soils, streambanks and instream coliform bacteria levels to grazing management in a riparian area

Creator:: Bohn, Carolyn C.
Abstract:: This thesis describes a case study of the effects of five systems of grazing on watershed values in a deteriorated riparian area. Soil infiltration, bulk density and penetrability, streambank edge movement and coliform bacteria were monitored for seven years along a stream in the Blue Mountains of northeastern Oregon. For...
Resource Type:: Masters Thesis
Full Text:: conversations. The Forest Service Pacific Northwest Forest and Range Experiment Station provided financial and

Effects of environmental variables and grazing on planted willow (Salix boothii Dorn) cuttings

Creator:: Lowson, Katherine L.
Abstract:: The influence of streambank location and timing of herbivory on success of planted Booth's willow (Salix boothii Dorn) cuttings along a Rosgen C5-type stream in an eastern Oregon meadow was determined. Willow cuttings were planted on two morphological locations (i.e. point bar and floodplain) in May of 2002 and 2003....
Resource Type:: Masters Thesis
Full Text:: weather station (OCS 2004)................................................. 2.4 Means and standard errors

Infiltration, soil erosion, nitrogen loss and soil profile characteristics of Oregon lands occupied by three subspecies of Artemisia tridentata

Creator:: Swanson, Sherman R.
Abstract:: Infiltration, soil erosion, nitrogen loss and soil profile characteristics were measured on 36 sites representing land occupied by Artemisia tridentata ssp. tridentate, wyomingensis, and vaseyana. Infiltration, soil erosion, and nitrogen loss were strongly correlated but highly variable. Soil loss, but not infiltration or nitrogen loss was significantly different between subspecies....
Resource Type:: Dissertation
Full Text:: project would not have been possible without the funding provided by the Agricultural Research Service of

ScholarsArchive@OSU

Overland flow and sediment production potentials in logged and nonlogged sites of a ponderosa pine forest in northeastern Oregon

Storm runoff characteristics of various plant communities within the Oregon Range Validation Area

Prescribed fire effects on vegetation and arthropod dynamics, and sampling techniques in a Wyoming big sagebrush community

Watershed response to western juniper control

Sediment potentials for selected ecological land units in central Oregon

Application of stream classification and historical land uses for managed riparian systems of Eastern Oregon

Analysis of hydrology and erosion in small, paired watersheds in a juniper-sagebrush area of central Oregon

The response of soils, streambanks and instream coliform bacteria levels to grazing management in a riparian area

Effects of environmental variables and grazing on planted willow (Salix boothii Dorn) cuttings

Infiltration, soil erosion, nitrogen loss and soil profile characteristics of Oregon lands occupied by three subspecies of Artemisia tridentata

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