长江口地处我国经济社会高度发达的东部沿海,与世界其它河口发达地区一样,长江口及邻近海域的生态与环境面临巨大压力和挑战。同时,大河输入、黑潮和东亚季风的相互作用,构成了长江口及邻近海域独特的区域海洋环境,是地球上研究自然变化和人类活动对近海环境演变 The Yangtze Estuary is located in the economically and socially developed eastern coast of China. Like other developed river estuaries in the world, the ecology and environment in the Changjiang Estuary and its adjacent sea areas are under great pressure and challenges. At the same time, the input of major rivers, the interaction between the Kuroshio and the East Asian monsoon constitute the unique regional marine environment in the Yangtze Estuary and the adjacent sea areas, which is the result of natural changes in the study of the Earth and the evolution of human activities on the coastal environment