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Centroid Method: Comparison of Simple and Complex Proxy Tree Taper Functions

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Abstract:

Cubic-meter volumes estimated from simple and complex proxy taper functions were compared to observed volumes of loblolly pine (Pinus taeda, L.) and ponderosa pine (Pinus ponderosa, Dougl. ex Laws.) trees to evaluate accuracy (bias and precision) in the centroid method. The results of this investigation showed no clear evidence that a more complex proxy taper function is more accurate than a simple function. The results also support previous studies that show accurate volumes of standing trees may be obtained using the centroid method, which requires only one upper-stem diameter measurement. FOR. SCI. 46(4):473–477.

Keywords: Max-Burkhart; Taper function; dendrometry; importance sampling; tree volume

Document Type: Miscellaneous

Affiliations: 1: Assistant Professor Division of Forestry, West Virginia University, PO Box 6125 Morgantown, WV, 26506, Phone: (304) 293-2941 ext. 2421; Fax: (304) 293-2441 dcoble@wvu.edu 2: Professor Emeritus 113 Scenery Drive, Morgantown, WV, 26505, Phone/Fax: (304) 599-6618 hwiant@juno.com

Publication date: 2000-11-01

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.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 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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