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): James A. Westfall
    Date: 2006
    Source: In: Proceedings of the sixth annual forest inventory and analysis symposium; 2004 September 21-24; Denver, CO. Gen. Tech. Rep. WO-70. Washington, DC: U.S. Department of Agriculture Forest Service. 126p.
    Publication Series: General Technical Report (GTR)
    Station: Washington Office
    PDF: View PDF  (239.38 KB)

    Description

    The U.S. Department of Agriculture Forest Service Northeastern Forest Inventory and Analysis program (NE-FIA) is developing regionwide tree-taper equations. Unlike most previous work on modeling tree form, this effort necessarily includes a wide array of tree species. For some species, branching patterns can produce undesirable tree form that reduces the merchantable portion of the stem and merchantable heights to a fixed top diameter (e.g., 4 inches) are often unrealized. Thus, height estimates from a taper model tend to overestimate the actual merchantable length of the stem. This phenomenon is exacerbated as tree size increases. The extent of this problem is illustrated by comparing taper-derived merchantable height estimates to observed merchantable height measurements on trees from NE-FIA sample plots. Models were developed using individual tree attributes to adjust the taper-based estimates to account for reductions in merchantable height due to tree form.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • 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

    Westfall, James A. 2006. Modifying Taper-Derived Merchantable Height Estimates to Account for Tree Characteristics. In: Proceedings of the sixth annual forest inventory and analysis symposium; 2004 September 21-24; Denver, CO. Gen. Tech. Rep. WO-70. Washington, DC: U.S. Department of Agriculture Forest Service. 126p.

    Related Search


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