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An Analysis and Models of Basal Area Growth in 45-Year-Old Unthinned and Thinned Slash Pine Plantation Plots

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Net basal area yield equations and survival functions for unthinned slash pine plantations are developed from 45-year-old experimental plot data representing different planting densities in a spacing and thinning study. These equations are used in conjunction with data from thinned plots to define a measure of the degree to which trees in a thinned plantation had been affected by competition relative to the trees in an unthinned plantation of the same age and average number of trees per unit area. Data from thinned plots are used to illustrate how this measure can be used to improve the prediction of basal area growth in thinned plantations based on the expected growth and yield of unthinned plantations. Forest Sci. 30:933-942.

Keywords: Pinus elliottii; index of suppression; survival function; thinning response

Document Type: Journal Article

Affiliations: Instructor, School of Forest Resources, University of Georgia, Athens, GA 30602

Publication date: December 1, 1984

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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