Potential denitrification rates in moderately oiled marshes at the Chandeleur Island, July 2015 to February 2016

The Deepwater Horizon oil spill has contributed to significant loss of marsh vegetation. Decreased marsh vegetation habitats can lead to a reduction in organic carbon and other key nutrients available for microbial communities in sediments. Potential denitrification rates were achieved by collecting 0-2 cm and 5-7 cm sediments in vegetated marsh and unvegetated intertidal marsh habitats. Sediments were treated with and without nitrate and rates will be determined using acetylene inhibition technique.深水地平线（Deepwater Horizon）漏油事件导致滨海沼泽植被出现显著丧失。滨海沼泽植被栖息地的缩减，会造成沉积物中微生物群落可利用的有机碳及其他关键营养盐含量下降。为测定潜在反硝化速率，本研究采集了有植被覆盖沼泽与无植被覆盖潮间带沼泽生境中的0-2 cm及5-7 cm层沉积物。沉积物将分别施加硝酸根与不施加硝酸根处理，并采用乙炔抑制法测定其反硝化速率。