Index Catalog // ScholarsArchive@OSU

Creator:: Andrus, Charles W.
Abstract:: Implements for tilling compacted forest soils were tested on sites logged with ground-based machines in Oregon. The sites covered a variety of soil conditions ranging from a clay loam to a rock7 2C2 iplemeflts tested included disk harrows (four aies), brusa blades (three sites), standard subsoiler tines (two sites), wing.-...
Resource Type:: Masters Thesis

Creator:: Garvin, William Fredrick
Abstract:: The objective of this study was to quantitatively describe the intrusion of logging debris into artificial gravel streambeds during conditions of low stream flow with a stable streambed, and begin an analysis of the effect of high flow and unstable streambeds. This study was initiated because prior studies indicated that...
Resource Type:: Masters Thesis

Creator:: Steinblums, Ivars John
Abstract:: Stream buffer strips are an important tool for protecting the stream environment. This research documents the losses from 40 stream buffer strips, in the Western Cascades of Oregon, established 1 to 15 years before the study. Predictive equations are developed which identify the major reasons for buffer strip losses. Losses...
Resource Type:: Masters Thesis

Creator:: Lammel, Richard Friedrich
Abstract:: Amounts of natural debris in small headwater streams under old growth stands of Douglas-fir vary from 6 1/2 tons per 100 ft. of stream to 26 tons per 100 ft. of stream, depending on terrain and timber characteristics and sequence in the natural accumulation-flushing cycle. Approximately 10% of the weight...
Resource Type:: Masters Thesis

Creator:: Hu, Su Cherng
Abstract:: As the demands for forest products increase, additional timber harvesting operations can be expected on steep mountainous terrain, The resulting disruption of natural slope stability by man's disturbances (roadbuilding, logging and vegetative manipulation, etc.) may also accelerate mass movement processes in this terrain. Swanston (1969) defines mass movement as ".,...
Resource Type:: Capstone Project

Creator:: Garland, John J. and Oregon State University. Extension Service
Abstract:: Ground-based skidding may cause unacceptable damage to woodland soils when owners make no attempt to minimize the area covered with skid trails. As much as 40 percent of the area may be covered with skid trails during a single entry if you do not plan and mark them in advance.
Resource Type:: Technical Report
Full Text:: cooperating, the environmental and economic benefits of designated skid trails can be realized. T r able 1

Creator:: Ponce, Stanley L., Brown, George Wallace, 1939-, and Oregon State University. Forest Research Laboratory
Resource Type:: Research Paper
Full Text:: differences in leaf chemistry by vertical crown position. crown aspect. and age was developed for each species

Creator:: Phillips, Robert W., Campbell, Homer J., Hug, Wayne L., Claire, Errol W., and Oregon. State Game Commission. Research Division
Abstract:: This report measures the effects of logging on the production and yield of Coho salmon, coastal cutthroat, and steelhead trout in small coastal streams. It contains descriptions of the physical and biological environment before logging, and describes some immediate effects of logging, such as such as a decrease in dissolved...
Resource Type:: Technical Report
Full Text:: survival of coho salmon and steelhead trout as influenced by some environmental conditions in gravel beds

ScholarsArchive@OSU