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INT-RN-77: A tree-by-tree measure of site utilization for grand fir related to stand density index
Stage, Albert R. 1968. A tree-by-tree measure of site utilization for grand fir related to stand density index. Research Note INT-77. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 7 p.
The usefulness of stand density index (SDI) has been limited by lack of a way to partition its nonlinear expression into additive components to describe the relative stocking of a stand by species or quality classes. In this paper, a linear equation is derived to permit such a partition. A closely related expression for grand fir stocking is given that retains the merits of SDI, but is more nearly proportional to growth of individual trees within a stand. Hence, the partitioning of stocking into components will be more meaningful to the forest manager with this revised form.
Keywords: stand density index, SDI, site utilization
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A tree-by-tree measure of site utilization for grand fir related
to stand density index
Publish Date: July 23, 2010
Last Update: July 23, 2010
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