Height growth and site index curves for western white pine in the Cascade Range of Washington and Oregon.

Robert O. Curtis; Nancy M. Diaz; Gary W. Clendenen

doi:10.2737/PNW-RP-423

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Height growth and site index curves for western white pine in the Cascade Range of Washington and Oregon.

Informally Refereed

Authors:

Robert O. Curtis, Nancy M. Diaz, Gary W. Clendenen

Year:

1990

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-423

Source:

Res. Pap. PNW-RP-423. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 14 p.

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Abstract

Height growth and site index curves were constructed from stem analyses of mature western white pine (Pinus monticola Dougl. ex D. Don) growing in high-elevation forests of the Cascade Range in the Mount Hood and Gifford Pinchot National Forests of Oregon and Washington, respectively. Alternate systems using reference ages for site index of 50 and 100 years breast height are presented. Differences among systems and their causes are briefly discussed.

Keywords

Site index, height growth curves, stem analysis, western white pine, Pinus monticola

Citation

Curtis, Robert O.; Diaz, Nancy M.; Clendenen, Gary W. 1990. Height growth and site index curves for western white pine in the Cascade Range of Washington and Oregon. Res. Pap. PNW-RP-423. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 14 p.