Sediment characteristics in experimental seagrass meadows in Virginia, 2011

Using a large-scale restoration (>1700 ha) in the Virginia coastal bays as a model system, we evaluated the role of seagrass, Zostera  marina, restoration in carbon storage in sediments of shallow coastal ecosystems. Sediments of replicate seagrass meadows representing different age treatments (as time since seeding: 0, 4, and 10 years), were analyzed for % carbon, % nitrogen, bulk density, organic matter content, and ^210Pb for dating at 1-cm increments to a depth of 10 cm.

本研究以弗吉尼亚沿海海湾一处面积超1700公顷的大型海草修复工程为模式系统，评估了大叶藻（Zostera marina）修复对浅海海岸生态系统沉积物碳储存的作用。我们针对不同修复龄期（即播种后的时长：0年、4年和10年）的重复海草床沉积物样本开展分析，检测指标包括碳占比、氮占比、容重、有机质含量，并采用^210Pb（铅-210）测年法，以1厘米为间隔对0至10厘米深度的沉积物进行年代测定。