It is the foreland of the confluence of the Yangtze River and the channel of south and north currents, being famous with its three unique marine resources, i.e. fish, port and landscape.

• 长江三角洲地区是我国最大的经济核心区，对全国经济具有强有力的拉动作用，但一方面因受河口拦门沙的影响，缺乏深水岸线资源，另一方面海岛旅游资源匮乏。