Pacific Southwest

Title: Growth models for ponderosa pine: I. Yield of unthinned plantations in northern California.

Author: Oliver, William W.; Powers, Robert F.

Date: 1978

Source: Res. Paper PSW-RP-133. Berkeley, CA: US Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 21 p

Station ID: RP-PSW-133

Description: Yields for high-survival, unthinned ponderosa pine (Pinus ponderosa Laws.) plantations in northern California are estimated. Stems of 367 trees in 12 plantations were analyzed to produce a growth model simulating stand yields. Diameter, basal area, and net cubic volume yields by Site Indices₅₀ 40 through 120 are tabulated for stands ranging in age between 10 and 50 years and in spacing between 6 by 6 and 12 by 12 feet. Tables also show diameter distributions by crown classes and stem volumes in cubic feet for plantation-grown ponderosa pine. These data provide both a standard with which to compare the effects of management decisions, and a performance goal.

Keywords: Pinus ponderosa, plantations, growth models, yield, tables, basal area, volume, northern California

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Citation

Oliver, William W.; Powers, Robert F.   1978.  Growth models for ponderosa pine: I. Yield of unthinned plantations in northern California..   Res. Paper PSW-RP-133. Berkeley, CA: US Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 21 p.