Isotope constraints on particulate organic carbon source and biogeochemical process in the East China Sea
Particulate Organic Carbon (POC) as well as its stable carbon (δ13CPOC) isotopic ratio were determined on suspended matter collected from the Changjiang River and ECS during summer period in 2009.The (13CPOC values showed rather normal range from -25.9 ‰ to -18.5 ‰,with an average of -24.4 ‰.In combination with the horizontal gradient of seawater density,Suspended Particulate Matter (SPM),Chl-a and (13CPOC ratios indicated that the terrigenous material was dominated in the Changjiang River and estuary,while phytoplankton produced POC was the main source of organic matter eastern of front.It is noteworthy that a negative correlation between (13CPOC and the dissolved CO2 concentration in surface waters eastern of front was observed,which suggested the compound-specific carbon isotopic composition of sedimentary organic matter maybe a good proxy to reconstruct the paleo-pCO2.However,this phenomenon reminds us more carefully to apply two end member of (13CPOC value to calculating organic matter sources in the marginal sea.
Particulate organic carbon stable isotope East China Sea
Hongliang Li Jianfang Chen Haiyan Jin Xiaoguo Yu Kui Wang Daji Huang Bin Wang Yanpei Zhuang Jingjing Zhang
Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA; State Key Key laboratory of Submarine Geosciences, Second Institute of Oceanography, SOA State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, SOA
国际会议
The 17th Pacific -Asian Marginal Seas Meeting(第十七届太平洋与亚洲边缘海国际会议)
杭州
英文
1076-1081
2013-04-23（万方平台首次上网日期，不代表论文的发表时间）