ABSTRACT
The water status of a wetland defines its extent, and is the determinant of plant species composition in natural wetlands (Mitsch and Gosselink, 2000). Hydrologic conditions also influence the soils and nutrients, which in turn influence the character of the biota. Flow and storage volume determine the length of time that water spends in the wetland, and thus the opportunity for interactions between waterborne substances and the wetland ecosystem.
