Water Table or Soil Aeration Status

FIGURE 5.45 Effect of water table depth on organic matter decomposition and carbon dioxide evolution from peat soils (Reddy et al., 2006). 

FIGURE 5.46 3-D surface plot showing interaction between nutrient enrichment and hydrology in the Everglades soils. (From DeBusk and Reddy, 2003.) 

Introduction of oxygen influences a range of oxidation and reduction reactions related to cycling of various elements (as discussed in others chapters of this book). A few examples are shown below  

Introduction of oxygen as a result of lowering water table inhibits the following biogeochemi-cal processes  

Introduction of oxygen promotes the following biogeochemical reactions (see Chapter 6)  

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