This publication is the second in a series of circulars designed to assist the graduate engineer in reviewing engineering subject matter in order to prepare for registration examinations. As in the first publication of the series, most of the illustrative problems are taken from recent examinations of the Oregon State...
Bibliographia Bopyridarum is prepared and maintained by John Markham, Arch Cape, Oregon, USA. Any reports of errors or omissions are greatly appreciated. Please contact Dr. Markham with suggestions: jmarkham@seasurf.net This file is updated annually.
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...
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...
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...