Response of Terrebonne Bay and western Barataria Bay marsh soil greenhouse gas production to salinity manipulations

We quantified the effects of altering salinity (5, 15, 25, 35 ppt) and the Deepwater Horizon Oil spill on greenhouse gas (GHG) (CH4, CO2, N2O) production on laboratory incubated soils from oiled and unoiled Terrebonne and Barataria Bay salt marsh sites. These sites include 2 sets of paired oiled and unoiled marshes in both the Terrebonne Bay (Bay LaFleur and northern Lake Barre regions) and western Barataria Bay (north of Grand Isle, LA) regions of coastal LA. Soils were collected at 5, 10, 15, and 20 m from the marsh edge at each site and pooled for salinity manipulations. Additionally, we measured a series of soil properties (water content, organic matter, organic C, total N and CN ratios) on these pooled soils.

我们量化了盐度变化（5、15、25、35千分比）和深水地平线漏油事件对来自路易斯安那州沿海地区Terrebonne湾与Barataria湾受油污染及未受油污染盐沼站点实验室培养土壤中温室气体（GHG）（CH₄、CO₂、N₂O）产生的影响。这些站点包括Terrebonne湾（Bay LaFleur与Barre湖北部区域）和Barataria湾西部（路易斯安那州Grand Isle北部）的两组配对受油污染与未受油污染盐沼。在每个站点，从盐沼边缘5、10、15及20米处采集土壤并混合，用于盐度处理实验。此外，我们测定了这些混合土壤的一系列性质（含水量、有机质、有机碳、全氮及碳氮比）。