How Do You Rate This Publication?       

Title:	Biomass and Taper for Trees in Thinned and Unthinned Longleaf Pine Plantations
Author(s):	Thomas, Charles E.; Parresol, Bernard R.; Le, Kim H. N.; Lohrey, Richard E.
Date:	1995
Source:	Southern Journal of Applied Forestry, Vol. 19, No. 1, Feb 1995.
Description:	Longleafpine (Pinus palustris Mill.) trees growing in thinned plantation studies in Louisiana and Texas and unthinned stands from the Louisiana sites were sampled for establishing taper, volume, and specific gravity. Stem analysis data were collected on 147 stems ranging in age from 30 to 50 yr. Analyses of covariance (ANCOVAs) were employed to determine coefficients and to detect differences among treatments, for tree taper and specific gravity. Taper and volume equation coefficients and statistics at specified ages were developed for intermediate plantation ages by examining and aging internal growth ringsfrom the stem sections. Biomass was computed by combining the taper and specific gravity equations. Seemingly unrelated regression (SUR) was used to simultaneously fit the system offour equations composed of specific gravity, taper, volume, and biomass, because of the correlated error structure of these equations. Biomass equations, however, could not be developedfor the intermediate ages because specific gravity could not be determined or related to earlier tree ages.
	View and Print this Publication (175 KB)
Pristine Version:	An uncaptured or "pristine" version of this publication is available. It has not been subjected to OCR (Optical Character Recognition) and therefore does not have any errors in the text. However it is a larger file size and some people may experience long download times. The "pristine" version of this publication is available here: View and Print the PRISTINE copy of this Publication (1.0 MB)
Publication Notes:	We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information. This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain. Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS Webmaster, srswebmaster@fs.fed.us if you notice any errors which make this publication unuseable.
	Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility