The Yellow River starts the water and sand adjustment before the flood today, and it is expected to take about 20 days.

According to the news of the Yellow River Water Resources Committee of the Ministry of Water Resources (referred to as the "Yellow Commission"), in accordance with the principles of safety, controlling and overall planning, combined with the requirements of the Yellow River reservoir to welcome the flood, the "cattle nose" regulated by the water and sand relationship, the Huang Committee It was decided to start at 8 o'clock on June 19th. Through joint dispatching of Wanjiazhai, Sanmenxia, ​​and Xiaolangdi Reservoir, the Yellow River raised water and sand before the flood of 2022, and scientifically regulated water and sand relationships.

Before the flood, the Yellow River water regulation was started before the flood. Lin Yuan Photo

Comprehensive consideration of factors such as sand exhaust effects, subsequent water supply safety, and dams for dams for dams. It is expected that this water adjustment will take about 20 days. On June 19th, the small wave bottom reservoir leaked at 2600 cubic meters per second. During the entire water adjustment period, the maximum leakage flow of the small wave bottom reservoir will reach 4,500 cubic meters per second.

According to the prediction of water storage and river water in the reservoir before the flood, considering the underwriting of the downstream beach area, and taking into account the actual situation of water such as "stuck neck and dryness" in early July, combined with the experience of water -adjusting water and sand adjustment, it is determined to determine the Yellow River water adjustment before the flood this year. The timing of sand was June 19. According to the water storage of water and reservoir in the middle of the Yellow River, in order to enhance the subsequent driving force of the small waves of water and sand, and give full play to the water storage benefits above the flood limit of the reservoir. Joint scheduling mode.

The Yellow River water adjustment sand is one of the important means to regulate the relationship between the Yellow River water and sand. Since 2002, on the basis of a large number of scientific research and experiments, the Huang Committee seized the opportunity to continue to carry out the water melting of the Yellow River. At the end of the flood last year, the Yellow Committee actively prepared water sources to meet the needs of urban and rural water, industrial and agricultural production water and ecological water along the Huang area, and made a lot of preparations for the Yellow River water adjustment sand before the flood. Before the flood this year, the Yellow River water adjustment sand will continue to implement the Yellow River ecological scheduling and the Ecological replenishment of the Delta. On the premise of ensuring the safety of drought resistance in the later period, it will be possible to achieve the sand exhaust of the reservoir. The river slot is stable, and the adaptability of the river management project is inspected. At the same time, through the water adjustment of the Yellow River before the flood, the sand discharge of the reservoir and the downstream river sediment in the reservoir and the downstream river sediment in different use conditions are further explored to enrich the theory of water adjustment and sand.

Due to the large flow and long duration of water and sand adjustment before the flood, in order to ensure the safety of projects, beach areas and wading production, the Yellow Committee to Shanxi, Shaanxi, Henan, and Shandong provinces The department, the relevant water conservancy hub and the power grid management unit issued a notice to report the relevant situation of water -regulating sand and sand and regulation, and put forward clear requirements for the prevention of water and drought disaster prevention during the water control and sand regulation. The notice requires that strict implementation of various responsibility systems, strengthen hydrological monitoring and forecasts, strengthen joint dispatching of water engineering, prevent the risk of flood beaches, do a good job of investigation of risk inspection, strengthen the water -related safety management, and strictly implement the reservoir management unit.

During the water -regulating sand and sand, the Huang Committee will pay close attention to the changes in the weather situation, roll up the analysis of water and rain in time, strengthen emergency duty and flood prevention conferences, strengthen the real -time scheduling of the reservoir, do a good job of water -regulating the prototype of the sand and regulation Water -regulating the sand and regulation is successful, everything is lost, and the expected goals are achieved.

On June 15th, Wang Annan, executive deputy general commander of the Huanghe Defense President and Director of the Huang Committee of the Huang Committee, hosted the 2022 Yellow River Flood Control Association and Mobilization Meeting to convey important instructions on General Secretary Xi Jinping's instructions on flood control and disaster relief work during Sichuan. Flood prevention and water -regulating the sand and regulation work, mobilize the Huang Committee to unify their minds and act quickly, and fully fulfill the duties of flood prevention in the attitude of war, go all out to do a good job of flood prevention work this year, and ensure that the Yellow River Anlan. Su Maolin, deputy commander of the Yellow River Defense and deputy director of the Yellow Committee, Li Wenxue, General Secretary -General of the Yellow River Defense and the chief engineer of the Yellow Committee attended the meeting.

Wang Annan emphasized that from now on, the flood prevention work should be used as a top priority in the flood season, and the starting point and end of the work of preventing the flood, anti -flood, stealing danger, and saving disasters. The supremacy is to prevent the largest flood since the founding of the New China, the super -standard floods have countermeasures and measures as the goal, and strive to achieve personnel non -casualties, reservoirs do not collapse, important embankments, and important infrastructure. , Ensure the safety of economic and social development.

On June 8 this year, the Yellow Committee announced the "List of Employees of the Yellow River, key reservoirs, key cities, and the list of flood control administrative responsible responsible for flood control areas in 2022." Qinghai, Gansu, Ningxia, Inner Mongolia, Shanxi, Shaanxi, Henan, Shandong is the administrative responsible person at the deputy provincial level, and Henan and Shandong, located in the middle and lower reaches of the Yellow River, are led by the governor.

Source: Surging News

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