The Yellow River was launched before the flood of the Yellow River in 2022. It will take about 20 days

The reporter learned from the Yellow Committee that in accordance with the principles of security, controllable, and overall consideration, combined with the requirements of the flood reservoir in the middle reaches of the Yellow River, the "beef nose" regulated by the water and sand relationship was tightly grasped. Through joint dispatching Wanjiazhai, Sanmenxia, ​​and Xiaolang bottom reservoir, the Yellow River water adjustment and sand and sand relationships before the flood of 2022, and scientifically regulate water and sand relationships.

Before 2022, the Yellow River Water Drowsted Sand Simpage was launched by reporter Lin Yuan

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 reports, according to the water storage and river water prediction of the reservoir before the flood, considering the underwater harvest of the downstream beach area, and taking into account the actual situation of "stuck neck and dry" water in early July, combined with the experience of water -adjusting the sand and sand and regulation, it was determined that the Yellow River before the flood this year was determined that the Yellow River before the flood this year The starting time of water -adjusting and sanding is 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.

Before 2022, the Yellow River Water Drowsted Sand Simpage was launched by reporter Lin Yuan

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. (Chen Han)

(Source: Xinhua News Agency client)

【Edit: Fu Sakura】

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