东线：该方案从长江下游引水，基本沿京杭运河逐级提水向黄淮海平原东部供水。水源情况：长江水资源丰富，多年平均径流量约9600亿m3，即使在特枯年也有7600多亿m3，东线工程从长江下游抽水，水源充沛。供水范围：涉及苏、皖、鲁、冀、津五省（市）。工程布置：利用江苏现有江 East Line: This program diverts water from the lower reaches of the Yangtze River and basically supplies water to the eastern part of the Huang-Huai-Hai Plain along the Beijing-Hangzhou Grand Canal. Water Source: The Yangtze River is rich in water resources with an average annual runoff of about 960 billion m3. It has more than 760 billion m3 even in the special dry years. The eastern line project draws water from the lower reaches of the Yangtze River with abundant water. Water supply: involving Jiangsu, Anhui, Shandong, Hebei, Tianjin five provinces (cities). Project layout: the use of Jiangsu existing river