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Filtering by: Creator Markle, Bradley R. Degree Name Master of Forestry (M.F.)

Survival of planted Douglas-fir seedlings on severe sites using the paper sheet mulch planting method

Creator:

Bradley, Robert F.

Abstract:

Two studies were undertaken in search of a method or methods which might improve the survival of planted Douglas-fir seedlings on severe sites. The first, or preliminary study involved the planting of 2-0 Douglas-fir seedlings on southerly aspects, using nine techniques, including a control. The second, or main study involving...

Resource Type:

Masters Thesis
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

Full Text:

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