Physical Sciences and Mathematics Commons^™

Controls On Ecosystem Carbon Dioxide Exchange In Short- And Long-Hydroperiod Florida Everglades Freshwater Marshes, Jessica L. Schedlbauer, Jay W. Munyon, Steven F. Oberbauer, Evelyn E. Gaiser, Gregory Starr

FCE LTER Journal Articles

Although freshwater wetlands are among the most productive ecosystems on Earth, little is known of carbon dioxide (CO₂) exchange in low latitude wetlands. The Everglades is an extensive, oligotrophic wetland in south Florida characterized by short- and long-hydroperiod marshes. Chamber-based CO₂ exchange measurements were made to compare the marshes and examine the roles of primary producers, seasonality, and environmental drivers in determining exchange rates. Low rates of CO₂ exchange were observed in both marshes with net ecosystem production reaching maxima of 3.77 and 4.28 μmol CO₂ m⁻² s⁻¹ in short- and long-hydroperiod marshes, …