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  1. Site index charts for Douglas-fir in the Pacific Northwest.

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    Author(s): Grover A. Choate; Floyd A. Johnson
    Date: 1958
    Source: PNW Old Series Research Notes No. 161, p. 1-6
    Publication Series: Research Note (RN)
    Station: Pacific Northwest Research Station
    PDF: Download Publication  (630 KB)

    Description

    Charts in this report can be used to estimate site index for Douglas-fir from stand age and from average total height of dominant and codominant trees. Table 1 and figure 2 in USDA Technical Bulletin 201 have been used for this purpose in the past. However, the table requires time-consuming interpolation and the figure gives only rough approximations.

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Choate, Grover A.; Johnson, Floyd A. 1958. Site index charts for Douglas-fir in the Pacific Northwest. PNW Old Series Research Notes No. 161, p. 1-6

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