Pacific Southwest

Title: Polymorphic site index curves for red fir in California and southern Oregon

Author: Dolph, K. Leroy

Date: 1991

Source: Res. Pap. PSW-206. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest, Forest and Range Experiment Station. 18 p

Station ID: RP-PSW-206

Description: Polymorphic site index curves were developed from stem analysis data of 194 dominant red fir trees in California and southern Oregon. Site index was based on breast-height age and total tree height, with a bast age of 50 years t breast height. Site index curves for breast height ages 10 to 160 years are presented for approximate estimates of site index. For more precise estimates, tabular values of total tree height as a function of breast-height ge and site index are given. Guidelines for selection of site trees and application of the site curves are discussed.

Keywords: site index, stem analysis, increment (height), red Tu, Abies magnifica, California, Oregon

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Citation

Dolph, K. Leroy  1991.  Polymorphic site index curves for red fir in California and southern Oregon.   Res. Pap. PSW-206. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest, Forest and Range Experiment Station. 18 p.