上海市位于长江口,南临杭州湾,东临黄海,江海岸线长,江河出口两侧幅地大,长江每年挟带泥沙近5亿吨向河口下泄,受海潮上溯顶托,加上咸淡水交替,使泥沙沉积,其中约有半数泥沙在长江口和杭州湾北岸沉积,因此给上海带来非常丰富的滩涂资源。开发、利用沿江沿海海洋空间有深远意义,通过围海造地,对沿江沿海海域进行综合利用,建设港口、工业基地、海上机场、水库、储灰场、 Shanghai is located in the mouth of the Yangtze River, south of Hangzhou Bay, east of the Yellow Sea, the coastline of the Yangtze River, the river is large on both sides of the export, the Yangtze River every year with 500 million tons of sediment discharge to the estuary discharge, Alternating fresh water and sediment deposition, of which about half of sediment deposition in the Yangtze River estuary and the northern shore of Hangzhou Bay, so bring to Shanghai a very rich beach resources. It is of far-reaching significance to develop and utilize the maritime space along the coast. Through land reclamation and land reclamation, the comprehensive utilization of the coastal areas along the river will be carried out. Ports, industrial bases, offshore airports, reservoirs,