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


    Growth data from the most recent 5 years of a 40-year thinning study in an even-aged red pine (Pinus resinosa) forest in cutfoot sioux experimental forest, Minnesota, were used with intercepted photosynthetically active radiation (IPAR) data to determine the relationship between light interception and growth for a range ofstand densities. Stand basal area (BA) growth was proportional to the amount of light intercepted within the stand (P = 0.06 r2 = 0.73), and individual tree growth was inversely related to the amount of light intercepted by the canopy (P = 0.08, r2 = 0.69). Stand growth efficiency (SGE = ratio of 5-year plot BA growth to plot median %IPAR) was only weakly correlated with stand density (p < 0.10, r = 0.31). The rate of change in stand growth efficiency may be a good indicator of change in forest condition over a range of stand densities.

    Publication Notes

    • You may send email to 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.


    Law, Beverly E.; Riitters, Kurt H.; Ohmann, Lewis F. 1992. Growth in relation to canopy light interception in a red pine (Pinus resinosa) thinning study. Forest Science, Vol. 38(1): 199-202

    Related Search

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