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Publication Information

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Title: A local basal area adjustment for crown width prediction

Author: Bragg, Don C.;

Date: 2001

Source: Northern Journal of Applied Forestry. 18(1): 22-28.

Publication Series: Miscellaneous Publication

Description:

Nonlinear crown width regressive equations were developed for 24 species common to the upper Lake States of Michigan, Minnesota, and Wisconsin. Of the species surveyed, 15 produced statistically significant (P < 0.05) local basal area effect coefficients showing a reduction in crown width increasing stand density. No relation between shade tolerance and crown width was apparent, indicating the species-dependence of this parameter. Using adjusted R2 as a guide, nonlinear crown width models adapted for local basal area (NLCWadj) improved predictions for 20 of 24 species over a lacking this component (NLCW). The ecological significance of the improvement shown for some species may be minor, but for others the difference was substantial (often 8 percent).

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Citation:


Bragg, Don C. 2001. A local basal area adjustment for crown width prediction. Northern Journal of Applied Forestry. 18(1): 22-28.

 


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