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    Author(s): Norman H. Pillsbury; Philip M. McDonald; Victor Simon
    Date: 1995
    Source: Western Journal Applied Forestry. 10(2): 72-78
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (956.2 KB)


    Tree volume equations for tanoak (Lithocarpus densiflorus) were developed for seven stands throughout its natural range and compared by a volume prediction and a parameter difference method. The objective was to test if volume estimates from a species growing in a local, relatively uniform habitat could be applied more widely. Results indicated that they could not. Diameter slope coefficients and intercepts differed at the 5% probability level. Tree height slope coefficients did not differ, but when all slope coefficients (dbh and height) were combined, a significant difference was present. Overall, volume equations from different populations were significantly different, and the general rule of matching standard volume tables to specific stands is reinforced.

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    Pillsbury, N.H.; McDonald, P.M.; Simon, V. 1995. Reliability of tanoak volume equations when applied to different areas. Western Journal Applied Forestry. 10(2): 72-78.

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