2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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6/06/2017 | 11:00 AM - 11:15 AM | OCCURRENCE AND CHARACTERISTICS OF GEOGRAPHICALLY ISOLATED WETLANDS IN THE CAROLINA COASTAL PLAIN: SMALL BUT MIGHTY | 301B

OCCURRENCE AND CHARACTERISTICS OF GEOGRAPHICALLY ISOLATED WETLANDS IN THE CAROLINA COASTAL PLAIN: SMALL BUT MIGHTY

Geographically isolated wetlands (GIWs) are thought to provide important environmental benefits but their size and extent are poorly understood. This study estimated the extent of IWs in an 8-county portion of the coastal plain of North and South Carolina. Geographical information systems were used to create the sampling frame of a probability sampling design used to select candidate GIW sites along the study area. Rapid field assessments were then conducted to determine map accuracy as well as to develop statistically valid estimates of the number, size, extent, and other characteristics of GIWs in the region. We estimated that there were over 52,000 GIWs in the study area occupying about 12,141 hectares (ha) of land, or about 2% of the total wetland area. GIWs were small but numerous with a mean size of 0.27 ha across the study area. Overall most GIWs in the study area were forested ecosystems of three general types (forested flats [50%], forested ponds [33%], and small pocosins [16%]) that occur in relatively small depressions on the uplifted marine terrace and are estimated to contain about 5 million metric tons of carbon.

C09 Wetland Ecology
S04 Natural and Constructed Wetlands – improving water quality and watershed health
S15 Connectivity and Effects of Carolina and Delmarva Bays, Pocosins, and other Geographically Isolated Wetlands of the Atlantic Coastal Plain

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Presenters/Authors

Kim Matthews (), RTI International, kmatthews@rti.org;