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Nitrification and Denitrification Rates of Everglades Wetland Soils along a Phosphorus-Impacted Gradient

John R. White* and K. R. Reddy

Wetland Biogeochemistry Laboratory, Soil and Water Science Department, Box 110510, 106 Newell Hall, University of Florida, Gainesville, FL 32611



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  		Fig. 1. Station locations along the soil phosphorus gradient in Water Conservation Area 2A (WCA-2A).

 


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  		Fig. 2. Initial nitrification rates vs. extractable NH4–N for detritus, 0- to 10-, and 10- to 30-cm soil intervals from along the transect in Water Conservation Area 2A (WCA-2A).

 


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  		Fig. 3. Changes in nitrate concentration over time for the 0- to 10-cm soil interval at Station 1 showing the range used for calculation of the initial and potential nitrification rates.

 


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  		Fig. 4. Potential denitrification rates of detritus, 0- to 10-, and 10- to 30-cm soil intervals from along the transect in Water Conservation Area 2A (WCA-2A). Means and one standard error are plotted.

 


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  		Fig. 5. Potential denitrification rates vs. total P for detritus, 0- to 10-, and 10- to 30-cm soil intervals from along the transect in Water Conservation Area 2A (WCA-2A).

 




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