Wetland Greenhouse Gas Flux Data

Tidal wetland ecosystems support high rates of atmospheric carbon dioxide (CO2) sequestration, a critical climate regulating ecosystem service. Although water-saturated conditions in wetlands support anaerobic production of methane (CH4), a potent greenhouse gas, the presence of sulfate ions in seawater limits CH4 emission where tidal flow is present. The U.S. Geological Survey investigates both natural and altered wetland ecosystems to determine how greenhouse gas fluxes change in conjunction with environmental drivers as well as wetland management condition. Data is collected from both eddy flux covariance towers and discrete flux measurements from chambers. All data is accompanied by ancillary environmental measurements.