The Extent of Saltwater Intrusion in Yangtze River Estuary Brought by the East Route Project of Transporting Water from Yangtze River to North China and the Pumping Works Along the Yangtze River from Anhui to Jiangsu Province

The intensity of saltwater intrusion in Yangtz river estuary was studied in this paper, which was brought up by the East Route Project of Transporting Water from Yangtze River to North China and the Pumping Works along the Yangtze River from Anhui to Jiangsu Province. The research results showed: In dry years and normal years, the extent of saltwater intrusion at South Branch and South Channel in Yangtze Estuary will become serious after the East Route Project and the Pumping Works;In rainy years, the water discharge was diminished from 600m3/s to 1500m3/s by the Projects will give no affect to the extent of the saltwater intrusion;While in especially dry years, the extent of the saltwater intrusion will be aggravated when the water discharge was decreased by 600m3/s;″Critical Water Discharge″ was calculated. In dry years, the ″Critical Water Discharge″ is 1000m3/s, and in rainy years, it is 2000m3/s;Salt Water Intrusion will have heavier impact on the Baogang Reservoir than on the Gaoqiao Station.