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Predictability of Individual Tree Growth Using Various Definitions of Competing Basal Area

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Methods for evaluating the competition experienced by individual trees in terms of surrounding basal area are reviewed. The properties of an ideal method are outlined. A new model, zone count, is presented, together with an approximation allowing quick fieldwork. The various methods, each for a wide range of plot sizes or basal area factors, are then compared as follows: Each definition (method by size) is used in turn in a regression predicting basal area increment for individual trees of an even-aged stand of Eucalyptus spp., the residual mean square providing a criterion. Other factors bearing on efficiency are discussed.

Document Type: Journal Article

Affiliations: Forester, Forests Commission of Victoria, Australia

Publication date: September 1, 1968

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.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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