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Creator:: Larsen, Royce E.
Abstract:: The purpose of this study was to evaluate the effects that free ranging cattle have on water quality in semi-arid environments. There were three specific objectives: 1) To determine the concentration and distribution of cattle feces in meadows, riparian zones, and the associated uplands. 2) To determine the fecal deposition...
Resource Type:: Masters Thesis
Full Text:: Project 85-CRSR-2-2718. I would like to thank my advisor, Dr. John C. Buckhouse, for his assistance

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:: monthly and mean annual temperature (T... C) and precipitation (P...cm) data for Austin (1949-1978), John

Creator:: Bolognani, Domenic Affrunti
Abstract:: During the summer of 1980 an infiltration/sedimentation study was conducted on the Oregon Range and Related Resource Validation Project Work Area in the Blue Mountains of east-central Oregon. A modified Rocky Mountain infiltrometer was used to simulate a 28 minute high intensity rainfall event to determine mean infiltration rates and...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Redacted for privacy John C. Buckhouse During the summer of 1980 an infiltration

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:: John C. Buckhouse During the summers of 1975 and 1976 a sedimentation study was conducted in the Bear

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:: : Redacted for privacy John C. Buckhouse Infiltration, soil erosion, nitrogen loss and soil profile

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:: Abstract approved: John C. Buckhouse CurreA research indicates that the expansion of western juniper can

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