央视网消息：记者从水利部了解到，24日，三峡水库完成2025年175米蓄水目标，有效蓄水量可达221.5亿立方米，这是三峡水库自2010年 首次蓄至175米后第14次实现蓄满目标，为今冬明春充分发挥供水、生态、发电、航运等综合效益奠定了坚实基础。 三峡水库完成2025年175米蓄水目标：175米最高水位意味着什么？ 175米是三峡水库正常运用可以达到的最高水位，也是三峡水库为长江中下游防洪可以调度运用的最高水位。三峡水库为什么要蓄水到175 米？这个数字究竟意味着什么呢？ 175米是三峡水库在每年汛期结束时需要"存满水"的一个标准刻度。只有达到这个高度，三峡水库才能在接下来的枯水期里有足够的水资 源平稳下放。 纳入联合调度的长江流域共有58座控制性水库。然而，蓄水绝非简单的关闸蓄水，而是一场"蓄"与"泄"的精准博弈。 长江流域宜昌水文站的历史数据显示，每年超过60%的来水量都集中在汛期，而到了冬季枯水期，来水量却常常捉襟见肘。所以三峡水库 必须在10月底存蓄足够的水，才能在枯水期均匀地释放给中下游。据统计，从去年11月—今年4月期间，三峡水库就累计向下游补水116.7亿立 方米，相当于为超过1500万人储备了 ...

Core Viewpoint - The article emphasizes the importance of flood prevention and water storage management in the Yangtze River basin during the autumn flood season, highlighting the need for coordinated efforts among relevant departments to ensure safety and efficiency in operations [1][2]. Group 1: Flood Prevention Measures - The Yangtze River Flood Control Headquarters and the Yangtze River Water Resources Commission are actively monitoring rainfall changes and have scheduled specific flood defense and post-flood water storage tasks [1]. - A significant rainfall event is forecasted from October 17 to 18, with moderate to heavy rain expected across the Yangtze River basin, followed by light rain from October 19 to 26 [1]. Group 2: Responsibilities and Coordination - There is a call for enhanced accountability in flood defense, with daily assessments and a focus on optimizing work deployment to improve the effectiveness and timeliness of flood prevention measures [1]. - The need for strengthened monitoring, forecasting, and early warning systems is highlighted, particularly in response to heavy rainfall, to support decision-making and timely alerts [1]. Group 3: Water Resource Management - The article stresses the importance of scientifically managing reservoir operations, balancing flood safety with water storage needs, and optimizing the dispatch plans for key reservoirs like the Three Gorges and Danjiangkou [1]. - There is a directive for local areas to enhance inspections and defenses of riverbanks and to manage risks associated with small rivers and reservoirs, particularly those that are vulnerable or under construction [1]. Group 4: Safety and Quality Assurance - Ensuring the safety of the Danjiangkou Reservoir and its water quality is a priority, with ongoing monitoring and analysis of flood data to enhance engineering and water quality safety capabilities [2]. - The article also mentions the importance of public communication and media engagement to promote flood defense measures and operational effectiveness, fostering a supportive public opinion environment [2].

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].