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Research Note
Title: Estimating site index of ponderosa pine in Northern California...standard curves, soil series, stem analysis
Author: Powers, Robert F.
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
Station ID: RN-PSW-265
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.
Keywords: Pinus ponderosa; California; height increment; natural growth; site classification; site index curves
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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.