Crown-Diameter Prediction Models for 87 Species of Stand-Grown Trees in the Eastern United States
The mean crown diameters of stand-grown trees were modeled as a function of stem diameter, live-crown ratio, stand basal area, latitude, longitude, elevation, and Hopkins bioclimatic index for 87 tree species in the eastern United States. Stem diameter was statistically significant in all models, and a quadratic term for stem diameter was required for some species. Crown ratio and/or Hopkins index also improved the models for many species. Coefficients of variation from the regression solutions ranged from 18 to 35%, and model r-square values ranged from 0.15 to 0.88. Simpler models, based only on stem diameter and crown ratio, are also presented. South. J. Appl. For. 27(4):269–278.
Keywords: Largest crown width; crown diameter; crown width; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; tree crown modeling
Document Type: Miscellaneous
Publication date: November 1, 2003
- Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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