Skip to Main Content
Compatible taper equation for loblolly pineAuthor(s): J. P. McClure; R. L. Czaplewski
Source: Canadian Journal of Forest Research. 16(6): 1272-1277.
Publication Series: Scientific Journal (JRNL)
Station: Rocky Mountain Research Station
PDF: View PDF (501.06 KB)
DescriptionCao'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.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationMcClure, J. P.; Czaplewski, R. L. 1986. Compatible taper equation for loblolly pine. Canadian Journal of Forest Research. 16(6): 1272-1277.
Keywordstaper equation, loblolly pine, Cao model
- Taper equation and volume tables for plantation-grown red alder.
- Compatibility, development, and estimation of taper and volume equation systems
- Complex compatible taper and volume estimation systems for red and loblolly pine
XML: View XML