Wetlands sediment variability

The partitioning of trace metals between the dissolved and particulate fractions in estuaries can be affected by variability in river flow, tidal and wind energy, storms, coagulation, and flocculation in the estuarine turbidity maximum (ETM), resuspension events (of sediments and porewaters), and inputs from wetland and mudflat processes. 

The availability of organic carbon is a second variable that affects rates of Fe(III) reduction in wetland and aquatic sediments (Thamdrup, 2000 Roden and Wetzel, 2002 Megonigal et al., 2004). For example, Roden and Wetzel (2002) demonstrated that although Fe(III) reduction kinetics were affected primarily by Fe(III) availability, Fe(III) reduction rates also correlated directly with tlie availability of organic carbon. Plant roots can serve as sources of labile organic... 

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