[1]School of Environment,Harbin Institute of Technology,Harbin 150001,China;
[2]School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China;
[2]School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China;
[3]School of Water Resources and Hydropower Engineering,Wuhan University,Wuhan 430072,China;
[4]State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Beijing 100083,China;
[2]School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China;
[4]State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Beijing 100083,China;
Submarine groundwater discharge(SGD); Radium isotopes; Radium mass balance model; SGD-associated nutrient fluxes; Daya Bay;