Sediment characteristics in oil impacted salt marshes on Chandeleur Islands, July, 2015 through February, 2016

Sediment characteristics were measured during a project to investigate sediment denitrification and nitrogen cycling processes. Sediments were filtered and stored on ice in the dark prior to return to the laboratory within 8 hrs. Sediment samples for chlorophyll were collected from the top 1 cm. Sediments for the carbon to nitrogen molar ratio were collected from the top 10 cm and homogenized prior to the analysis. The below ground biomass was collected from the top 10 cm of the sediments from the marsh platform. Data were collected seasonally from July 2015 to February 2016.本项目旨在探究沉积物反硝化作用与氮循环过程，期间对沉积物相关特性开展了测定。沉积物经过滤后，于避光冰鲜条件下保存，并在8小时内运回实验室。叶绿素测定所需沉积物样品采集自表层1 cm处。碳氮摩尔比测定所需沉积物样品采集自表层10 cm处，并在分析前完成均质化处理。地下生物量样品采集自沼泽平台沉积物的表层10 cm处。数据采集工作于2015年7月至2016年2月期间按季节进行。