| Abstract: | A weighted average method was used to analyze transition zone vegetation in the Great Dismal Swamp to determine if a more uniform determination of wetland boundaries can be made nationwide. The method was applied to vegetation data collected on four transects and three vertical layers across the wetland-to-upland transition zone of the swamp. Ecological index values based on water tolerance were either taken from the literature or derived from local species tolerances. Wetland index values were calculated for 25-m increments using species cover and rankings based on the ecological indices. Wetland index values were used to designate increments as either wetland, transitional, or upland, and to examine the usefulness of a provisional wetland-upland break-point. The weighted average method did not provide for an objective placement of an absolute wetland boundary, but did serve to focus attention on the transitional boundary zone where supplementary information is necessary to select a wetland-upland breakpoint. |
| Genre: | Article |
| ProdID: | 70013722 |
| Citation Author: | Carter, Virginia; Garrett, Mary, Keith; Gammon, Patricia, T. |
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| Citation End Page: | 306 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Water Resources Bulletin |
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| Citation Number Of Pages: | 10 |
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| Citation Publisher: | American Water Resources Association |
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| Citation Search Results Text: | Wetland Boundary Determination in the Great Dismal Swamp Using Weighted Averages; 1988; Article; Journal; Water Resources Bulletin; Carter, Virginia; Garrett, Mary, Keith; Gammon, Patricia, T. |
| Citation Start Page: | 297 |
| Citation Volume: | 24 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Wetland Boundary Determination in the Great Dismal Swamp Using Weighted Averages; 1988; Article; Journal; Water Resources Bulletin; Carter, Virginia; Garrett, Mary, Keith; Gammon, Patricia, T. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1111/j.1752-1688.1988.tb02987.x |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
| Publisher: | American Water Resources Association |
