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Notes: Simple Competition Indices and Their Correlation with Annual Loblolly Pine Tree Growth

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Competition indices, based on the distance weighted ratio of competitor and subject tree sizes, were correlated with annual diameter and height growth. Correlations with growth were greater when competitors were chosen by angle gauge techniques than by a fixed competition radius. Some of the tested indices were as highly correlated with tree growth as the complex area overlap and weighted area overlap competition indices used in the past. Correlation with growth and computational ease indicate that simple competition indices may be well suited to tree growth simulation and field applications. Forest Sci. 22:454-456.
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Keywords: Pinus taeda L; point density; simulation; yield

Document Type: Miscellaneous

Affiliations: Research Associate, Division of Forestry and Wildlife Resources, Virginia Polytechnic Institute and State University, Blacksburg 24061

Publication date: 1976-12-01

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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