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Optimal Diameter Growth Equations for Major Tree Species of the Midsouth

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Optimal diameter growth equations for 60 major tree species were fit using the potential relative increment (PRI) methodology. Almost 175,000 individuals from the Midsouth (Arkansas, Louisiana, Missouri, Oklahoma, and Texas) were selected from the USDA Forest Service's Eastwide Forest Inventory Database (EFIDB). These records were then reduced to the individuals growing at the fastest rate given their species and size, and nonlinear ordinary least squares regression was used to fit equations to a subset of points with maximal increment. Sugarberry is provided as an example of the PRI derivation process. South. J. Appl. For. 27(1):5–10.

Keywords: Eastwide Forest Inventory Database (EFIDB); Potential relative increment (PRI); environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; nonlinear regression; sugarberry

Document Type: Miscellaneous

Publication date: 2003-02-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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