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Growth after precommercial thinning in two stands of Douglas-fir.Author(s): Robert W. Steele
Source: PNW Old Series Research Notes No. 117, p. 1-4
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
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DescriptionTwenty years ago, portions of two young Douglas-fir stands on the Wind River Experimental Forest in Skamania County, Washington, were thinned by removing some of the trees in the suppressed and intermediate crown classes. At time of thinning, one stand, (A), was 23 years old and the second, (B), was 30 years old. In both cases site quality is IV. The trees taken out comprised about 20 percent of the total basal area in the stand.
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CitationSteele, Robert W. 1955. Growth after precommercial thinning in two stands of Douglas-fir. PNW Old Series Research Notes No. 117, p. 1-4
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