Skip to Main Content
Regional height-diameter equations for major tree species of southwest Oregon.Author(s): H. Temesgen; D.W. Hann; V.J. Monleon
Source: Western Journal of Applied Forestry. 22(3): 213-219
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (1.06 MB)
DescriptionSelected tree height and diameter functions were evaluated for their predictive abilities for major tree species of southwest Oregon. The equations included tree diameter alone, or diameter plus alternative measures of stand density and relative position. Two of the base equations were asymptotic functions, and two were exponential functional forms. The inclusion of the crown competition factor in larger trees and basal area, which indicates the relative position of a tree and stand density, into the base height-diameter equations increased the accuracy of prediction for all species. On the average, root mean square values were reduced by 40.4 cm (19 percent improvement). Two equations are recommended for estimating tree heights for major tree species in southwest Oregon.
- You may send email to email@example.com 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.
CitationTemesgen, H.; Hann, D.W.; Monleon, V.J. 2006. Regional height-diameter equations for major tree species of southwest Oregon. Western Journal of Applied Forestry. 22(3): 213-219
KeywordsTree height estimation, tree competition, basal area
- Effects of height imputation strategies on stand volume estimation
- Analysis and comparison of nonlinear tree height prediction strategies for Douglas-fir forest.
- Tree height estimation in redwood/Douglas-fir stands in Mendocino County
XML: View XML