Individual Tree Basal Area Increment and Total Height Equations for Appalachian Mixed Hardwoods After Thinning

Authors: Harrison, Wade C.; Burk, Thomas E.; Beck, Donald E.

Source: Southern Journal of Applied Forestry, Volume 10, Number 2, 1 May 1986 , pp. 99-104(6)

Publisher: Society of American Foresters

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Abstract:

Growth response of various species to thinning in even-aged stands of Appalachian mixed hardwoods was predicted with species-specific regression equations. Periodic annual increment over a five-year period was expressed as a linear function of original tree basal area divided by breast height age and a thinning or competition index based on stand basal area. For most species, a combination of stand basal area before and after thinning served as the thinning index; for the five oak species studied, the index was simply stand basal area after thinning. Nonlinear regression equations were formulated to express total tree height as a function of dbh and average height of dominant and codominant white oak. The equations for tree basal area increment and total height may be applied to predict growth after thinning in Appalachian mixed hardwood stands. South J. Appl. For. 10:99-104, May 1986

Document Type: Journal article

Affiliations: 1: USDA Forest Service Southeastern Forest Experiment Station, Asheville, NC.

Publication date: 1986-05-01

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