Rocky Mountain Research Station Publications
RMRS Online Publication
RM-RP-284: Profile models for estimating log end diameters in the Rocky Mountain Region
Czaplewski Raymond L.; Brown Amy S.; Walker, Raymond C. 1989. Profile models for estimating log end diameters in the Rocky Mountain Region. Res. Pap. RM-RP.284. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 7 p.
The segmented polynomial stem profile model of Max and Burkhart was applied to seven tree species in the Rocky Mountain Region of the Forest Service. Errors were reduced over the entire data set by use of second-stage models that adjust for transformation bias and explained weak patterns in the residual diameter predictions.
Keywords: Taper equations, merchantable volume estimates, bias correction, Abies concolor, Abies lasiocarpa, Picea engelmannii, Pinus con- torta, Pinus ponderosa, Pseudotsuga menziesii, Populus tremuloides
About PDFs: For best results, do not open the PDF in your Web browser. Right-click on the PDF link to download the PDF file directly to your computer. Click here for More PDF help or order a printed copy of this publication.
The PDF below was scanned and converted to text. Some errors may occur.
PDF File Size: 365 K
Profile models for estimating log end diameters in the Rocky Mountain
Electronic Publish Date: January 23, 2012
Last Update: January 23, 2012
RMRS Publications | Order a publication | Contact Us