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Pacific Southwest Research Station
800 Buchanan Street
Albany, CA 94710-0011
Publications and Products
Title: Growth models for ponderosa pine: I. Yield of unthinned plantations in northern California
Author: Oliver, William W.; Powers, Robert F.
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 standyields. 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 planiationgrown ponderosa pine. These data provide both a standard with which to compare the effects of management decisions, and a performance goal.
Key Words: Pinus ponderosa, plantations, growth models, yield, tables, basal area, volume, northern California
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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.
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