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Heterotrophic Microbial Activity in Northern Everglades Wetland Soils

Wetland Biogeochmistry Laboratory, University of Florida, 106 Newell Hall, P.O. Box 110510, Gainesville, FL 32611

View larger version (34K): [in a new window]   Fig. 1. Basal CO2 production rates in drained and flooded detritus and soil along the phosphorus gradient in WCA-2a for 2 sampling periods.

View larger version (27K): [in a new window]   Fig. 2. Basal CO2 production rates in detritus and soil from two sampling times plotted against total P. Data points are means from drained and flooded treatments.

View larger version (25K): [in a new window]   Fig. 3. Basal and substrate induced CO2 production rates under drained conditions plotted against rates under flooded conditions. Data points represent two sampling periods.

View larger version (24K): [in a new window]   Fig. 4. Heterotrophic microbial activity in detritus and 0–10 cm soil at 1.4 and 10.1 km from inflow in WCA-2a. Data are presented for aerobic, nitrate reducing, and sulfate reducing conditions.

View larger version (29K): [in a new window]   Fig. 5. Heterotrophic microbial activity in detritus and 0–10 cm soil at 1.4 and 10.1 km from inflow in WCA-2a. Data are presented for CO2 and CH4 production under methanogenic conditions.

View larger version (33K): [in a new window]   Fig. 6. Aerobic CO2 production rates plotted against rates under nitrate and sulfate reducing conditions for k1 and k2 phases.

View larger version (29K): [in a new window]   Fig. 7. Aerobic CO2 production rates plotted against CO2 and CH4 production rates under methanogenic conditions for k1 and k2 phases.