Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): H. Temesgen; D.W. Hann; V.J. Monleon
    Date: 2006
    Source: Western Journal of Applied Forestry. 22(3): 213-219
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (1.06 MB)


    Selected 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.

    Publication Notes

    • Visit PNW's Publication Request Page to request a hard copy of this publication.
    • 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.


    Temesgen, 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


    Tree height estimation, tree competition, basal area

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page