The 14C and 13C abundances of porewater DOC and sediment SOC from a mangrove swamp of southern China
This data was derived from three sediment cores, collected from a mangrove swamp of southern China along the elevation gradient, with a Russian peat sampler to a depth of 50 cm during May 2017. Pore water extraction was carried out on sediment sections at the depths of 0-4 cm, 4-8 cm, 8-12 cm, 12-16 cm, 16-20 cm, 20-28 cm, 28-36 cm, and 36-44 cm. The concentrations of DOC were analyzed by the high temperature combustion (HTC) method using a Shimadzu TOC-L Total Organic Carbon Analyzer with an ASI-L auto-sampler. The contents of SOC were analyzed using a Thermo Flash 2000 CHNS/O Analyzer after acidification with 10% HCl. The 13C and 14C abundances were analyzed for both of DOC and SOC, and the UV-oxidation method was used for δ13C-DOC and Δ14C-DOC analyses. Analyses of Δ14C and δ13C were measured at the National Ocean Science Accelerator Mass Spectrometry (NOSAMS) facilities at Woods Hole Oceanographic Institution (WHOI).
National Natural Science Foundation of China