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

William W. Oliver

Treesearch

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

Informally Refereed

Authors:

William W. Oliver

Year:

1972

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-276. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

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Download (PDF 509 KB): https://research.fs.usda.gov/download/treesearch/30791.pdf

Abstract

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

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