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. An Index of Competition Based on Relative Crown Position and Size

    Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Dwight D. O'Neal; Allan E. Houston; Edward R. Buckner; James S. Meadows
    Date: 1995
    Source: In: Edwards, M. Boyd, comp. Proceedings of the eighth biennial southern silvicultural research conference; 1994 November 1-3; Auburn, AL. Gen. Tech. Rep. SRS-1. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station: 172-175
    Publication Series: Miscellaneous Publication
    PDF: Download Publication  (92 KB)

    Description

    A new competition index, the Crown Position Index (CPI) was evaluated using a 41-year-old, well stocked, upland hardwood stand in southwestern Tennessee. CPI wss based on relative crown position and crown size as expressed by crown projections and relative heights of crop trees and their competitors. Comparisons were made among CPI, the Hegyl (1974) index, and a value of Direct Sunligt from the Side (DSS). Correlations of each measure of competition with 1 and 2 year crop tree diameter growth were used as criteria for analysis. The highest r-values were calculated using DSS followed by the Hegyl index snd CPI respectively.

    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

    O''Neal, Dwight D.; Houston, Allan E.; Buckner, Edward R.; Meadows, James S. 1995. An Index of Competition Based on Relative Crown Position and Size. In: Edwards, M. Boyd, comp. Proceedings of the eighth biennial southern silvicultural research conference; 1994 November 1-3; Auburn, AL. Gen. Tech. Rep. SRS-1. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station: 172-175

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/3270