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    Description

    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 rangedfrom 0.15 to 0.88. Simpler models, based only on stem diameter and crown ratio, are also presented.

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    Citation

    Bechtold, William A. 2003. Crown-Diameter Prediction Models for 87 Species of Stand-Grown Trees in the Eastern United States. South. J. Appl. For. 27(4):269-278.

    Keywords

    Largest crown width, crown width, crown diameter, tree crown modeling

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