Consequences of Mississippi River diversions on nutrient dynamics of coastal wetland soils and estuarine sediments: A review

摘要: Abstract Coastal Louisiana is dominated by the Mississippi River Deltaic Plain, which composed of a series overlapping and truncated sub-delta lobes that formed an extensive coastal wetland – open water shallow bay low relief upland mosaic across entire zone (∼25,000 km2). These wetlands have been eroding at alarming rate during past century, coincident with major modifications to deltaic landscape. One these former included leveeing River, essentially isolating river from basins. restoration technique involves re-connecting previously isolated basins via diversions, would once again allow influx freshwater, sediments nutrients into We review issues on potential impacts nutrient loading as consequence focused nitrogen (N) phosphorus (P) dynamics including denitrification related carbon dynamics. also examined how residence times in systems, compared deeper, often seasonally stratified, are more likely lead greater N removal context large scale diversion helping reduce transport ocean.