Individual tree growth models for natural even-aged shortleaf pine

This article is part of a larger document. View the larger document here.

  • Author(s): Budhathoki, Chakra B.; Lynch, Thomas B.; Guldin, James M.
  • Date: 2006
  • Station ID: Miscellaneous Publication-SRS-


Shortleaf pine (Pinus echinata Mill.) measurements were available from permanent plots established in even-aged stands of the Ouachita Mountains for studying growth. Annual basal area growth was modeled with a least-squares nonlinear regression method utilizing three measurements. The analysis showed that the parameter estimates were in agreement with respect to both direction and magnitude to those published by Lynch and others (1999) with data for the first two measurements. Since the tree measurements within a plot were correlated, a linear mixed model (with log-transformed basal area growth as a response) with a compound symmetry covariance structure for trees within a plot was also fitted. The mixed model fitted the basal area growth well, although the least-squares nonlinear model and the linear mixed model were not directly comparable.

  • Citation: Budhathoki, Chakra B.; Lynch, Thomas B.; Guldin, James M. 2006. Individual tree growth models for natural even-aged shortleaf pine. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 359-361

Requesting Print Publications

Publication requests are subject to availability. Fiscal responsibility limits the hardcopies of publications we produce and distribute. Electronic versions of publications may be downloaded, distributed and printed.

Please make any requests at

Publication Notes

  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
  • To view this article, download the latest version of Adobe Acrobat Reader.