Florida Coastal Everglades Long Term Ecological Research
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Biogeochemical Cycling Working Group
(Phase II, 2007-2012)

In Phase II of the FCE-LTER project, scientists are studying the impacts of freshwater inflows, marine inputs, and groundwater on nutrient concentrations and cycling rates in the estuarine ecotone. During Phase I, they found that long water residence times and inputs of phosphorus-rich groundwater were important to nutrient dynamics and belowground productivity, particularly during the dry season, in the Taylor Slough ecotone. Now researchers are expanding this focus to quantify groundwater nutrient inputs, estimate atmospheric inputs, and determine how nitrogen and phosphorus cycling are related to each other and how they are controlled. Scientists are using samples of soils, floc, and periphyton to investigate nitrogen cycling rates and they are examining the influence of bacterial communities on carbon and nitrogen cycles.

How do these factors affect people in south Florida?
The Everglades ecosystem and the services it provides as the largest freshwater wetland in the U.S. help to maintain the environment and the economy of south Florida. Our work shows how the ecosystem may respond to factors that might alter its ability to continue providing those services.

Flume in the mangroves
Flume used to measure fluxes of dissolved organic carbon (DOC) between a mangrove forest and adjacent tidal creek in Shark River Slough
Taking a soil core in Taylor Slough
Taking a soil core in Taylor Slough

Programming an autosampler to collect water samples

Sampling porewater
Sampling porewater

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National Science Foundation logo This material is based upon work supported by the National Science Foundation through the Florida Coastal Everglades Long-Term Ecological Research program under Cooperative Agreements #DEB-1237517, #DBI-0620409, and #DEB-9910514. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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