"Artificial Hongfeng" ecological scheduling, the first test of Baihetan

On June 3-13, the Baihetan Hydropower Station was implemented smoothly for the first time in 2022, and the ecological scheduling task was completed this year.

▲ The monitoring site of the fish delivery resource monitoring of the fish delivery resource in the lower river section of Baihetanba

The "artificial flood peak" ecological scheduling is mainly aimed at drifting crooa under the dam. When the water temperature under the dam is suitable for the proper reproduction temperature of rafting eggs, the reservoir flow of the reservoir is reasonably adjusted, so that the duration of the duration under the dam under the dam is about to form a duration of approximately as approximately to approximately as about the dam. 10 days, the flood peak flow is about two years of the flooding process of the dam of the dam. It is a suitable hydrological and hydraulic conditions for the production of rafting crooks such as Chinese gold sandy traps and round mouth copper fish in the lower reaches of the Baihetan. During the experiment, the downstream monitoring sections were simultaneously carried out in the water temperature, hydrological and fish spawning monitoring.

Starting from June 3, the test rose of 3290 cubic meters per second. It increased the outlet flow through 5 consecutive days. By June 8th, it rose to 60,40 cubic meters per second. The average daily increase of 550 cubic meters per second. Later, the outlet flow was gradually reduced, and the average daily decrease was 590 cubic meters per second at 3100 cubic meters on June 13. Preliminary monitoring results show that the downstream monitoring section during the scheduling period has a relatively obvious spawning response.

2022 is the first year when the Baihetan Hydropower Station is included in the scope of the ecological scheduling. All units of the Three Gorges Group have cooperated to coordinate and coordinate the work of water level operation, engineering construction, and on -site monitoring to ensure the smooth implementation of this ecological scheduling test. In the future, the Baihetan Hydropower Station will strengthen the research and judgment of the monitoring results, summarize the scientific scheduling of experience, and continue to help the Yangtze River protection.

(Author: Gong Wenting Li Shuai)

- END -