Notes: Chapman-Richards Growth Function Constrained for Maximum Tree Size
Field observations of tree growth often do not include sufficient numbers of large trees to ensure that growth projection models derived from the data are biologically realistic for large trees. The Chapman-Richards growth function may be modified to ensure that the summation of all growth increments for a particular tree will yield a size that does not exceed a biologically reasonable limit. Imposing such a constraint reduces model precision, but the reductions are generally small and are offset by an improvement in model behavior for trees not well represented in the sample data. This approach can be extended to other models. Forest Sci. 30:1066-1070.
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Document Type: Miscellaneous
Affiliations: Mensurationist, North Central Forest Experiment Station, USDA Forest Service, 1992 Folwell Avenue, St. Paul, MN 55108
Publication date: 1984-12-01
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