Christopher M. Swarzenski, Thomas W. Doyle, Brian Fry, and Thomas G. Hargis. Biogeochemical response of organic-rich freshwater marshes in the Louisiana delta plain to chronic river water influx. Biogeochemistry (2008) 90:49–63.
Michael S. Kearney, J. C. Riter & R. Eugene Turner, Freshwater river diversions for marsh restoration in Louisiana: Twenty-six years of changing vegetative cover and marsh area, 38 Geophysical Research Letters (2011)
These papers raise serious doubts about the use of river diversions to restore marshland. It is conventional wisdom that river water will provide sediment to build up the bed of the marsh and nutrients to encourage plant growth. These papers undermine that conventional wisdom through looking at the actual effect of river water on marshes. They found that diversions may weaken marshes, rather than build them up.