Experimental marsh management in Louisiana

Replicated experimental marsh ecosystems are established and planned for research and management of coastal Louisiana wetlands to (1) test management schemes before large scale implementation, and, (2) discriminate between long-term changes and the cumulative impacts of many other alterations. Water level changes are clearly shown to influence plant metabolism, hence ability to of the marsh to withstand sea level rise and geological subsidence. Animal migration/emigration is influenced as well as sedimentation rates. Soil conditions, especially bulk density and mineral content, influence hydrologic impacts, hence the need for replicated and diverse manipulations.