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ASSESSING THE IMPACTS OF AN INCREASE IN WATER LEVEL ON WETLAND VEGETATION
Citation:
Valk, A., L. Squires, AND C. Welling. ASSESSING THE IMPACTS OF AN INCREASE IN WATER LEVEL ON WETLAND VEGETATION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-95/163, 1994.
Description:
Three different approaches for assessing the impact of a permanent increase in water level on wetland vegetation were studied using a long-term, controlled, and replicated experiment. hese approaches were (1) digitized vegetation maps derived from aerial photographs; (2) vegetation data (species abundance, species diversity) from 10 permanent quadrants in each cell; and (3) Bray-Curtis similarity indices comparing the composition of the vegetation in permanent quadrants within a cell and. among cells. he study site was 10 cells of the Marsh Ecology Research Program (MERP) were constructed in 1979 within the Delta Marsh, Manitoba, Canada. ater levels were kept at normal and 30 or 60 cm above normal for five consecutive years.