You are here: Home
/ Publication Information
Title: Compatible taper equation for loblolly pine
Author: McClure, J. P.; Czaplewski, R. L. Ph.D.;
Source: Canadian Journal of Forest Research. 16(6): 1272-1277.
Publication Series: Scientific Journal (JRNL)
Description: Cao's compatible, segmented polynomial taper equation (Q. V. Cao, H. E. Burkhart, and T. A. Max. For. Sci. 26: 71-80. 1980) is fitted to a large loblolly pine data set from the southeastern United States. Equations are presented that predict diameter at a given height, height to a given top diameter, and volume below a given position on the main stem. All estimates are inside bark. A condition is given that forces the Cao model to be exactly compatible with any total main stem volume equation. An exact volume estimation formula is derived. Twelve benchmarks, which represent realistic utilization criteria, are used to describe expected errors in actually applying the taper equation rather than the more common fit statistics that describe errors encountered when estimating model parameters. Errors in using the fitted model are very similar to errors using Cao's estimates.
Keywords: taper equation, loblolly pine, Cao model
- 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.
XML: View XML
McClure, J. P.; Czaplewski, R. L. 1986. Compatible taper equation for loblolly pine. Canadian Journal of Forest Research. 16(6): 1272-1277.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility