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Title: Levels-of-growing-stock cooperative study in Douglas-fir: report no. 14—Stampede Creek, 30-year results.

Author: Curtis, Robert O.; Marshall, David D.;

Date: 2002

Source: Res. Pap. PNW-RP-543. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 77 p

Publication Series: Research Paper (RP)

Description: Results of the Stampede Creek installation of the levels-of-growing-stock (LOGS) study in Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) are summarized. To age 63 (planned completion of 60 feet of height growth), volume growth on the site III natural stand has been strongly related to level of growing stock, but basal area growth-growing stock relations were considerably weaker. Marked differences in tree size distributions have resulted from thinning. Periodic annual volume increments at age 63 are two to three times greater than mean annual increment; this stand is still far from culmination. Results for this southwest Oregon installation are generally similar to those reported from other LOGS installations, although development has been slower than on the site II installations that make up the majority of the series.

Keywords: Thinning, growing stock, growth and yield, stand density, Douglas-fir, Pseudotsuga menziesii, series—, Douglas-fir LOGS

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Curtis, Robert O.; Marshall, David D. 2002. Levels-of-growing-stock cooperative study in Douglas-fir: report no. 14—Stampede Creek, 30-year results. Res. Pap. PNW-RP-543. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 77 p

 


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