China News Agency, Wuhan, July 17 (Reporter Xu Jinbo) In response to the No. 2 flood in the Yangtze River in 2020 formed on the 17th, the Yangtze River Water Conservancy Commission conducted intensive consultations and deployed the reservoirs in the upper and middle reaches of the Yangtze River for joint dispatch and storage To alleviate the pressure of flood control in the middle and lower reaches.
Affected by the recent heavy rainfall, the main stream in the upper reaches of the Yangtze River and the incoming water in the Three Gorges area increased significantly, and the inflow of the Three Gorges Reservoir increased rapidly. At 10:00 on the 17th, the Three Gorges Reservoir ushered in an inflow of 50,000 cubic meters per second. The Hydrology Bureau of the Yangtze River Water Conservancy Commission issued the "Yangtze River Flood No. 2 in 2020" formed in the upper reaches of the Yangtze River in accordance with the "Regulations on the Numbering of Major River Floods in the Country". At 22:00 on the 17th, the inflow of the Three Gorges Reservoir rose to about 59,000 cubic meters per second.
According to the forecast, there will still be heavy rainfall in the Yangtze River Basin in the next three days. The heavy rain area will slowly move eastward and southward, and there will be heavy rain in Wujiang, the Three Gorges area, near the main stream of the middle and lower reaches of the Yangtze River, and northwest of the Dongting Lake water system; 21st to 23rd , The rain belt lifted north to the Jialing River water system and the upper reaches of the Han River, with moderate to heavy rain.
Affected by the increase of incoming water in the upper and lower reaches of the Yangtze River, the water level in the section from Chenglingji to Hankou and Dongting Lake in the main stream of the middle and lower reaches of the Yangtze River is about to turn up, with an increase of about 0.3 to 0.7 meters in the next few days; the water level below the Hankou and Poyang Lake continues to slow ; The above areas will remain above the warning water level for a longer period of time.
The Yangtze River Water Resources Commission continued to implement rolling consultations on the 17th to analyze and judge the development trend of flood conditions. After consultation and study, the near-term dispatching target will control the water level of Chenglingji at about 34.4 meters to reduce the flood control pressure in the middle and lower reaches of the Yangtze River, and at the same time control the water level of the Three Gorges Reservoir through flood control in the middle and upper reaches of the reservoir group.
To this end, the Yangtze River Water Conservancy Commission issued a dispatch order requesting that from July 17 onwards, the upstream reservoir group should be strengthened, and the upstream reservoirs should be jointly dispatched to retain floodwater, and the flooding of the Three Gorges Reservoir should be further reduced by 3.5 billion cubic meters by July 21. Requires a total of 7 controlled reservoirs in the Qingjiang River Basin and the Dongting Lake water system, according to the water and rain conditions and the forecast of the incoming water to intercept the floods in this basin; It is required to control the increase in the water level of the Three Gorges Reservoir, and the outflow will be 32500 cubic meters per day from 23:00 on the 16th In seconds, the follow-up will be based on changes in water and rain conditions, real-time rolling consultations, and timely optimization of scheduling plans.
Ma Jianhua, director of the Yangtze River Water Conservancy Commission, pointed out that due to the recent continuous heavy rainfall, the current bottom water of rivers and lakes is relatively high, and the subsequent incoming water from the upper reaches of the Yangtze River, Qingjiang River and Dongting Lake is increasing, and the flood control situation is becoming more and more serious. Responsibility, close cooperation, and do our best in flood defense work. (Finish)