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Research Note
Title: Height intercept for estimating site index in young ponderosa pine plantations and natural stands
Author: Oliver, William W.
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
Station ID: RN-PSW-276
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.
Keywords: Pinus ponderosa, site-index estimation, California (northern), height intercept method, internodal measurement
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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.