Program     Carbon Cycle in the South China Sea: Budget, Controls and Global Implications       Poster Progress on dynamical modulation, simulation and variation trend of the carbon cycle in the South China Sea P-SPS3-12 Jianyu Hu* , Xiamen University Jianping Gan, Hong Kong University of Science and Technology Zhongming Lu, Hong Kong University of Science and Technology Peng Cheng, Xiamen University Zhiqiang Liu, Presenter Email: hujy@xmu.edu.cn Based on several comprehensive cruises of observational data, and long time series of satellite data and reanalysis data, accompanied by advanced numerical modeling, we have made a good progress on the dynamical modulation, simulation and variation trend of the carbon cycle in the South China Sea. So far, we have published about 30 papers on the SCI journals. Here we present some representative results (1) to highlight the main ocean dynamical processes, such as circulation, upwelling and river plume, for modulating the carbon and nutrient transports in the Ocean Dominated Margin (OceMar) and the River Dominated Margin (RioMar) seas; (2) to integrate the numerical simulation and mechanism studies of the three-dimensional circulation, carbon cycle and nutrient transport in the South China Sea using a coupled physical–biogeochemical model; and (3) to estimate the long term trend of the carbon cycle in the South China Sea.