2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/06/2017 | 11:45 AM - 12:00 PM | HYDROLOGY AND TRANSPORT DURING EXTREME EVENTS ON A LOW-GRADIENT FORESTED WETLAND WATERSHED, SOUTHEASTERN ATLANTIC COASTAL PLAIN | 301B
HYDROLOGY AND TRANSPORT DURING EXTREME EVENTS ON A LOW-GRADIENT FORESTED WETLAND WATERSHED, SOUTHEASTERN ATLANTIC COASTAL PLAIN
In this paper we present information on distribution of depressional wetlands in Forest Service Francis Marion National Forest, South Carolina and results of wetland hydrologic analysis for locations with groundwater wells on a typical 52 km2 watershed, that is comprised of 28% forested and 9% non-forested wetlands. Using data from the watershed, stream discharge and contaminant loads with a focus on two extreme precipitation events (October, 2015 and 2016) with very high discharges, that resulted in ponding/flooding of the landscape, are highlighted. While the depressional forested wetlands have large storage capability to hold stormwater, we hypothesize that there is high potential for hydrological connection of these wetlands with other nearby waterbodies through overflows during and following extreme events, and the frequencies of which will potentially continue to increase as a result of projected climate change and sea level rise. However, the connectivity and cumulative transport effects of such depressional wetlands may depend upon their sizes and locations in the landscape that can potentially be evaluated using available modeling tools. Furthermore, the fate of the freshwater export in estuary downstream of the tidal freshwater transition zone is poorly understood.
- S04 Natural and Constructed Wetlands – improving water quality and watershed health
- C14 Hydroecology
- 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
Devendra Amatya
(), US Forest Service, Southern Research Station, damatya@fs.fed.us;
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Carl Trettin
(), USDA Forest Service Southern Research Station, ctrettin@fs.fed.us;
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Augustine Muwamba
(), College of Charleston, muwambaa@cofc.edu;
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Timothy Callahan
(), College of Charleston, callahanT@cofc.edu;
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