Hydrological and Water Conservancy Situation in Jiangsu Province

jiangsu Province spans across rivers and coasts, with numerous lakes and a dense water network, adjacent to land and sea. It is the only province in China with large rivers, lakes, and seas. The Yangtze River spans 433 kilometers from east to west, and the Grand Canal runs 718 kilometers from north to south. There are over 20000 rivers at or above the township level and more than 2000 rivers at the county level in the province, of which 723 are listed in the provincial backbone river list. jiangsu is located in the lower reaches of the Yangtze River, Huai River, Yishusi River Basin and the transitional zone between the north and south climates, with numerous rivers and lakes and a complex water system. Two of China's five largest freshwater lakes are located in jiangsu Province, and the Taihu Lake Lake is 2250 square kilometers, ranking third; Hongze Lake has an area of 2069 square kilometers, ranking fourth. In addition, there are more than 290 lakes of various sizes, including 12 lakes with an area of over 50 square kilometers. There are not only the Taihu Lake Lake, Hongze Lake, Gaoyou Lake, Luoma Lake, Baima Lake, Shijiu Lake, Weishan Lake and other large and medium-sized lakes in the territory, but also the Grand Canal, Huaishu River, Chuanchang River, Guanhe River, Yanhe River, Tongyu Canal, North jiangsu Irrigation Canal and Tongyang Canal and other tributaries. The canals are vertical and horizontal, and the water network is dense

As of May 2021, there are 952 registered reservoirs in jiangsu Province, with a total catchment area of 20900 square kilometers, accounting for about 20% of the province's total area. The total storage capacity is 3.52 billion cubic meters, the designed irrigation area is 368000 hectares, the effective irrigation area is 271000 hectares, and the annual water supply is 480 million cubic meters. There are a total of 98779 pumping stations in the province with a total installed power of 4.0148 million kilowatts, including 61 large pumping stations (71) with a total installed power of 401100 kilowatts. There are currently 51118 kilometers of embankments above level 5 in the province, of which the total length of level 1 and level 2 embankments is 5426 kilometers, mainly consisting of river basins, lake embankments, and seawalls. There are a total of 36212 water gates with a flow rate of 1 cubic meter per second or above and 51 rubber dams in the province, including 112 provincial managed water gates