Possible Solutions
Some scientists have found solutions to this problem. Mendelssohn and Kuhn set up an experiment with plants and soils in a Louisiana salt marsh in 2003. They found that when sediment deposits are increased within an unhealthy salt marsh area, the plants and soils are in better conditions.
The experiment showed that the plants with the greater sediment levels had more plant cover, with higher plants and a greater bulk density. The surface elevation increased with the increase of sediment, therefore reducing flooding. The roots could respire aerobically, so they did not have to rely on fermentation for energy. The plants with more sediment also showed a decrease in sulfide and NH4-N concentrations in the soil. Mendelssohn postulates that since the concentration of NH4-N decreased after the addition of sediment, more of the nitrogen was used by the plants.
Read more about this topic: Salt Marsh Dieback, Waterlogging Hypothesis
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