Land use change is the main driving factor to the change of terrestrial ecosystems carbon storage,we analyzed soil samples and vegetation biomass and evaluated soil,vegetation organic carbon density and storage in 6 types of terrestrial ecosystems.The ecosystem categories included cropland,woodland,grassland,water area,construction land and unused land.We also use linear programming model to design the optimal land use structure in order to maximize organic carbon storage of terrestrial ecosystems in Jiangs...