Drainage enhancement effects on a waterlogged Rhode Island (USA) salt marsh

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Authors Kenneth B. Raposa, Robin L. Weber, Wenley Ferguson, Jeffrey Hollister, Ron Rozsa, Nicole Maher, Alan Gettman
Journal/Conference Name Estuarine, Coastal and Shelf Science
Paper Category
Paper Abstract Salt marshes are prone to waterlogging for a variety of reasons. This may become more prevalent as sea levels rise. To better manage salt marshes and increase their resilience, managers need proven methods for reducing waterlogged conditions on marshes. Traditional approaches (e.g., ditch digging) have been used to reduce waterlogging, but little information exists evaluating the effectiveness of this approach. We provide this information with an experimental approach on a waterlogged marsh in Rhode Island and dug several ditches on the marsh and monitored the response over several years. The height of the marsh surface dropped 3 years after the ditches were added and previously bare portions of the marsh had revegetated. The impact of this work is that it appears that enhancing drainage on a marsh may help improve biological condition of the marsh through revegetation, but will likely not provide significant protection against future sea level rise.
Date of publication 2019
Code Programming Language R
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