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Title: Twenty-year growth of thinned and unthinned ponderosa pine in the Methow Valley of northern Washington.
Author: Barrett, James W.;
Source: Res. Pap. PNW-RP-286. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 13 p
Publication Series: Research Paper (RP)
Description: Diameter, height and volume growth, and yield of thinned and unthinned plots are given for a suppressed, 47-year-old stand of ponderosa pine (Pinus ponderosa Dougl. ex Laws.) in the Methow Valley of northern Washington that averaged about 3 inches in diameter and 23 feet tall before thinning. Considerations are discussed for choosing tree spacing in a precommercial thinning.
Keywords: Thinning effects, increment, stand density, improvement cutting, ponderosa pine, Pinus ponderosa
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Barrett, James W. 1981. Twenty-year growth of thinned and unthinned ponderosa pine in the Methow Valley of northern Washington. Res. Pap. PNW-RP-286. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 13 p
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