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  1. Height intercept for estimating site index in young ponderosa pine plantations and natural stands

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    Author(s): William W. Oliver
    Date: 1972
    Source: Res. Note PSW-RN-276. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p
    Publication Series: Research Note (RN)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (497 KB)

    Description

    Site index is difficult to estimate with any reliability in ponderosa pine (Pinus ponderosa Laws.) stands below 20 yeas old. A method of estimating site index based on 4-year height intercepts (total length of the first four internodes above breast height) is described. Equations based on two sets of published site-index curves were developed. They worked equally well for plantations and natural stands in northern California.

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    Citation

    Oliver, William W. 1972. Height intercept for estimating site index in young ponderosa pine plantations and natural stands. Res. Note PSW-RN-276. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

    Keywords

    Pinus ponderosa, site-index estimation, California (northern), height intercept method, internodal measurement

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