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    Author(s): Robert F. Powers
    Date: 1972
    Source: Res. Note PSW-RN-265. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p
    Publication Series: Research Note (RN)
    Station: Pacific Southwest Research Station
    PDF: Download Publication  (1.5 MB)

    Description

    Four sets of standard site index curves based on statewide or regionwide averages were compared with data on natural growth from nine young stands of ponderosa pine in northern California. The curves tested were by Meyer; Dunning; Dunning and Reineke; and Arvanitis, Lindquist, and Palley. The effects of soils on height growth were also studied. Among the curves tested, those by Dunning and Reineke seem superior in describing height growth trends of dominant trees in the first 50 to 60 years of stand development. Forest managers can estimate site index more accurately by applying a set of adjustment factors.

    Publication Notes

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    Citation

    Powers, Robert F. 1972. Estimating site index of ponderosa pine in Northern California...standard curves, soil series, stem analysis. Res. Note PSW-RN-265. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p

    Keywords

    Pinus ponderosa, California, height increment, natural growth, site classification, site index curves

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