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Filtering by: Date issued sim 1978-06-09 Rights Statement In Copyright

Production rates of skyline, balloon, and helicopter yarding systems from gross time study analysis

Creator:

Curtis, Richard James

Abstract:

This paper describes the analysis of data from a three-year gross time study of skyline, balloon, and helicopter yarding systems operating in Western Oregon. Data collection activities were designed and supervised by the Pacific Northwest Forest and Range Experiment Station, U.S.D.A. Forest Service. The specific logging systems studied were running...

Resource Type:

Masters Thesis
Quantitative basin morphology and channel stability with reference to nonpoint sources of pollution in Evans Creek, Oregon

Creator:

Krupin, Paul J.

Abstract:

A Stream Reach Inventory and Channel Stability Evaluation procedure has been used to assess the nature and extent of erosional nonpoint sources of pollution in the Evans Creek basin, a tributary to the Rogue River, in southwestern Oregon. The study is based upon the results of the Oregon Department of...

Resource Type:

Masters Thesis
Selected factors affecting the pattern of agricultural land conversion in Washington County, Oregon, 1963-1973

Creator:

Furuseth, Owen J., 1949-

Abstract:

In recent years the conversion of agricultural lands to more intensive non-rural land uses has become a focus of increasing public awareness and concern. The growing attention to farmland conversion is manifested in increasing public policies and legilsation to protect agricultural and forestry land uses. Nevertheless, our understanding of the...

Resource Type:

Dissertation