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

United States Department of Agriculture

Home > Search > Publication Information

 Due to a lapse in federal funding, this USDA website will not be actively updated. Once funding has been reestablished, online operations will continue.


  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Thomas W. Popham; Roger L. Baker
    Date: 1987
    Source: Res. Note SO-334. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.
    Publication Series: Research Note (RN)
    Station: Southern Forest Experiment Station
    PDF: View PDF  (279 KB)

    Description

    Foliar cover estimates of woody and herbaceous understory vegetation were done on twenty l-m2 plots for a variety of forest types in Alabama. The methods of estimation were ocular, loop-densimeter assisted ocular, and point frame. The point frame was used as the standard and the other two methods were compared using chi-square. Some ocular estimates were accurate, but the number and amount of inaccurate estimates were sufficient to result in a statistically significant difference at a=0.05. A difference existed in the ability of estimators to accurately estimate foliar cover of different vegetation groups. Therefore, ocular and loop-densimeter assisted ocular estimates did not provide consistently accurate estimates of the proportion of foliar cover of understory vegetation for forests in Alabama.

    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

    Popham, Thomas W.; Baker, Roger L. 1987. Ocular and Densimeter Estimates of Understory Foliar Cover in Forests of Alabama. Res. Note SO-334. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.

    Cited

    Google Scholar

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/1720