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Notes: Chapman-Richards Growth Function Constrained for Maximum Tree Size

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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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Keywords: Basal area growth; diameter growth; distance independent; growth model; individual tree

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

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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