Dissertation/Thesis Abstract

Vegetation patterns in depressional restored, natural reference, and prior-converted wetlands in the USA midatlantic coastal plain
by Yepsen, Metthea Marjorie, M.S., University of Maryland, College Park, 2012, 117; 1534004
Abstract (Summary)

Vegetation responds quickly to environmental changes, making it a useful tool for assessing the success of wetland restorations. Plant community composition was compared in 47 sites across the coastal plain of Maryland, Delaware, Virginia, and North Carolina, USA. Fifteen of the sites were isolated depressional wetlands (natural reference), 16 were farmed "prior-converted cropland" sites (ditched and drained former wetlands), and 17 were restored wetlands. Prior-converted sites were highly disturbed and dominated by non-wetland conventional row crops. Natural reference sites were dominated by native woody species and restored sites were dominated by herbaceous wetland species. Natural reference sites had lower Anthropogenic Activity Index scores, higher average coefficients of conservatism, and higher Floristic Quality Assessment Index scores than restored and prior-converted sites. Wetland restorations have succeeded in developing wetland plant communities, but have not developed plant communities that match natural reference wetlands. This is likely due to continued human disturbance, age, and a lack of proper propagules.

Indexing (document details)
Advisor: Baldwin, Andrew
Commitee: Lang, Megan, Whigham, Dennis, Yarwood, Stephanie
School: University of Maryland, College Park
Department: Environmental Science and Technology
School Location: United States -- Maryland
Source: MAI 51/04M(E), Masters Abstracts International
Subjects: Ecology, Natural Resource Management
Keywords: Crp, Restoration, Vegetation, Wetland, Wrp
Publication Number: 1534004
ISBN: 9781267926128
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