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

    Description

    The direct measurement of crown diameters with logger's tapes adds significantly to the cost of extensive forest inventories. We undertook a study of 100 trees to compare this measurement method to four alternatives-two field instruments, ocular estimates, and regression models. Using the taping method as the standard of comparison, accuracy of the tested alternatives was adequate for softwood species, but short of the specified measurement quality objectivefor estimating the mean crown diameter of hardwoods. Due to savings infield costs, ocular estimation and regression models were the best alternatives to direct measurement with logger's tapes.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us 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.

    Citation

    Bechtold, William A.; Mielke, Manfred E.; Zarnoch, Stanley J. 2002. Comparison of Field Methods and Models to Estimate Mean Crown Diameter. Northern Journal of Applied Forestry, Vol. 19, No. 4, p. 177-182 December 2002.

    Related Search


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