Authors: Minore, Don; Weatherly, Howard G.

Source: Western Journal of Applied Forestry, Volume 5, Number 2, 1 April 1990 , pp. 49-51(3)

Publisher: Society of American Foresters

Abstract:

The effects of five yarding-slash treatment combinations on Douglas-fir (Pseudotsuga menziesii) growth and survival were compared by obtaining seedling heights, potential seedling heights, survival percentages, soil-penetration resistances, and the occurrence of visible soil-humus for 149 progeny-test plantations in western Oregon. Survival was not improved by mechanical site preparation, and seedlings grown on the compacted, low-humus soils associated with piling slash off site did not grow as tall during their first 5 years as seedlings growing on similar sites where slash had been broadcast-burned. Tilling (disking or ripping) did not benefit seedling height growth. West. J. Appl. For. 5(2):49-51, April 1990.

Document Type: Journal article

Affiliations: 1: USDA Forest Service, Pacific Northwest Research Station, Corvallis, OR 97331

Publication date: 1990-04-01

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