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


    A recent publication and an article in Wetland Science & Practice (Lichvar and Gillrich 2014b, 2014a) discuss two metrics for determining if vegetation is hydrophytic for purposes of U.S. wetland delineations, the Prevalence Index (PI) and a proposed Hydrophytic Cover Index (HCI). Based on Wentworth et al. (1988), the PI is a weighted average of ordinal scores (1-5) for species in five wetland-indicator categories (defined in Table 1). 􀀐 􀁌􀁑􀁇􀁌􀁆􀁄􀁗􀁒􀁕􀀃􀁆􀁄􀁗􀁈􀁊􀁒􀁕􀁌􀁈􀁖􀀃􀀋􀁇􀁈􀂿􀁑􀁈􀁇􀀃􀁌􀁑􀀃􀀷􀁄􀁅􀁏􀁈􀀃􀀔􀀌􀀑􀀃􀀶􀁆􀁒􀁕􀁈􀁖􀀃􀁒􀁉􀀃􀀔􀂱􀀖􀀃

    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.


    De Steven, Diane. 2015. Metrics for determining hydrophytic vegetation in wetland delineation: a clarification on the prevalence index. Wetland Science & Practice 32(1): 3 p.

    Related Search

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