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    Author(s): Vern P. Yerkes
    Date: 1960
    Source: PNW Old Series Research Notes No. 194, p. 1-5
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (200 KB)

    Description

    With the advent of increased thinning activity in managed stands of young-growth Douglas-fir (Pseudotsuga menziesii), knowledge of growth and form development of released trees becomes necessary for calculations of total volume and growth. Any appreciable change in the rate of radial increment at various points along the stem of a released tree could cause change in its form and volume. This study was initiated to determine to what extent thinning alters the form of released Douglas-fir trees.

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    Citation

    Yerkes, Vern P. 1960. Effect of thinning on form of young-growth Douglas-fir trees. PNW Old Series Research Notes No. 194, p. 1-5

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https://www.fs.usda.gov/treesearch/pubs/25849