Marsh soil net greenhouse gas fluxes and explanatory variables, Terrebonne Bay (LA), 2013-2014

We conducted seasonal (March, May, July, September, November 2013 and February, April, July, October 2014) measurements of net soil greenhouse gas (CO2, CH4, and N2O) fluxes at 4 locations (5, 10, 15, and 20m from the marsh edge) in 4 marsh sites in Terrebonne Bay, LA. These sites include paired oiled and unoiled marshes in the Bay LaFleur and northern Lake Barre regions of Terrebonne Bay. Additionally, we measured a series of basic site characterizations (water depth, soil, porewater and overlying water temperature and salinity), soil properties (soil water content, redox, pH, organic C, total N and P, bulk density, extractable inorganic nutrients), and characterized the dissolved inorganic nutrient concentrations in porewater, overlying water and adjacent bay water samples.