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    Author(s): K. Leroy Dolph
    Date: 1991
    Source: Res. Paper PSW-206. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 18 p.
    Publication Series: Research Paper (RP)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (809.0 KB)

    Description

    Polymorphic site index curves were developed from stem analysis data of 194 dominant red fir trees in California and southern Oregon. Site index was based on breast-height age and total tree height, with a base age of 50 years at breast height. Site index curves for breast height ages 10 to 160 years are presented for approximate estimates of site index. For more precise estimates, tabular vaiues of total tree height as a function of breast-height age and site index are given. Guidelines for selection of site trees and application of the site curves are discussed.

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    Citation

    Dolph, K. Leroy. 1991. Polymorphic site index curves for red fir in California and southern Oregon. Res. Paper PSW-206. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 18 p.

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    Keywords

    site index, stem analysis, increment (height), red fir, Abies magnifica, California, Oregon

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