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    Author(s): Norman P. Worthington
    Date: 1955
    Source: PNW Old Series Research Note No. 121, p. 1-6
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (1.2 MB)


    What lumber-grade and yield recovery is possible from thinnings in low Site III, 110-year-old, young-growth Douglas -fir stand? A lumber-grade recovery study of sawtimber cut in recent thinning experiments at the Wind River Experimental Forest, Skamania County, Washington, gives some idea of the answer. The thinning experiments were designed to determine increment and yield of young Douglas-fir stands in the older age classes, which are approaching final harvest. As part of the study to determine whether such cuttings are justified economically, the lumber yield of timber cut in the experiment was explored.

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Worthington, Norman P. 1955. Lumber-grade recovery from 110-year-old Douglas-fir thinnings. PNW Old Series Research Note No. 121, p. 1-6

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