Group 1 - The upper reaches of the Yangtze River experienced continuous drought during the main flood season, with the total inflow to the Three Gorges Reservoir in July and August being more than 20% lower than the average inflow since the reservoir's establishment [3] - Influenced by the autumn rains in Western China, multiple rounds of rainfall occurred in the upper reaches of the Yangtze River, leading to an increase in inflow to the Three Gorges Reservoir starting from September 17, with inflow exceeding 40,000 cubic meters per second on September 20 [3] Group 2 - To ensure flood safety in the Three Gorges Reservoir area, the Three Gorges Group increased the outflow from the reservoir on September 16, lowering the water level to a minimum of 162.6 meters [6] - During the peak inflow, the Three Gorges controlled the outflow at 25,300 cubic meters per second while ensuring flood safety for upstream and downstream areas and coordinating with water storage management [6] - The company will closely monitor upstream inflow forecasts and manage the reservoir water level to ensure flood safety while steadily advancing the water storage process to meet annual storage targets [6]

Core Viewpoint - The Three Gorges Reservoir experienced its largest flood event of 2025 on September 20, influenced by autumn rains in Western China, while managing water resource utilization and flood safety [1][3]. Group 1: Flood Management - The Three Gorges Reservoir's inflow increased significantly, exceeding 40,000 cubic meters per second on September 20, following multiple rounds of rainfall in the upper reaches of the Yangtze River [3]. - To ensure flood safety, the Three Gorges Group reduced the reservoir's water level to a minimum of 162.6 meters by increasing the outflow to 25,300 cubic meters per second during the flood peak [3]. Group 2: Water Resource Utilization - The reservoir's total inflow from July to August was over 20% lower than the average since its establishment, indicating a prolonged dry spell in the upper Yangtze region [3]. - Following the approval of the water storage plan by the Ministry of Water Resources on September 10, the Three Gorges Reservoir began to store water while coordinating with flood control measures [3]. Group 3: Future Monitoring and Control - The Three Gorges Group will closely monitor upstream water forecasts to manage reservoir water levels effectively, ensuring flood safety while progressing with the annual water storage goals [3].