目前，"第三道防线"西江上游天生桥一级、光照、龙滩、百色4座水库总有效蓄水量188亿立方米；"第 二道防线"中游大藤峡水利枢纽有效蓄水量14.5亿立方米；"第一道防线"下游珠海供水水库群总有效蓄 水量5257万立方米。经会商研判，通过科学调度，可有效保障澳门、珠海等粤港澳大湾区城市供水安 全。 广西桂冠电力公司、大藤峡公司等相关负责同志表示将按照调度方案要求，全力配合珠江委做好水工程 联合调度工作，保障流域供水安全。 会商指出，珠江流域近期无明显降雨过程，江河来水逐渐下降，同时元旦期间正值天文大潮期，珠江河 口咸潮上溯开始活跃。各部门各单位要切实提高政治站位，立足供水最不利形势，落实落细各项保障措 施，坚决守住供水安全底线。 会商要求，一是密切关注流域雨水情和河口咸情变化，认真落实"四预"措施，滚动演算咸潮影响范围， 实时优化调度方案。二是科学调度西江上游龙滩等骨干水库持续向下游补水，调度西江中游大藤峡水库 维持较高水位运行，指导下游珠海本地水库群蓄水补库，确保供水安全。三是综合考虑供水、生态、发 电、航运等各方用水需求，实施多目标统筹调度，充分发挥水资源综合效益。四是指导相关地区加强取 水泵站、供水管线和设 ...

Core Insights - The Yellow River's flood and drought management during the 2025 flood season has been successfully concluded, with the ability to handle 94 instances of flood warnings [1] - The flood season exhibited significant variability, with a notable drought from March to June followed by intense rainfall in July and August, and a marked increase in autumn rainfall in September and October [1] - The Yellow River Water Resources Commission (YRWC) implemented a coordinated operation of 55 water projects to manage floodwaters effectively, achieving a peak flow reduction from 6,900 cubic meters per second to 2,670 cubic meters per second, a reduction rate of 61.3% [1] Flood and Drought Management - The YRWC reported that 48 rivers experienced floods exceeding warning levels, with some tributaries recording the highest floods since data collection began [1] - A rare occurrence was noted on October 12, when the first flood of 2025 was recorded at the Tongguan hydrological station, marking the latest occurrence of a numbered flood since 1964 [1] Water Resource Management - The YRWC executed pre-flood and flood period water and sediment management, with the Sanmenxia Reservoir discharging 335 million tons of sediment and the Xiaolangdi Reservoir discharging 222 million tons [2] - A total of 624 million cubic meters of water was diverted to combat drought in the lower Yellow River, along with 15 million cubic meters for ecological replenishment in the Yellow River Delta [2] - The coordinated sediment discharge from key reservoirs in the upper and middle Yellow River reached a historical high of 130 million tons [2]

Core Points - The Pearl River Basin has implemented multiple measures to prevent flooding during a series of severe rainstorms and typhoons, achieving significant success in flood control and water storage goals [1][3][4] Group 1: Flood Control Measures - The Pearl River Basin faced challenges with 314 rivers experiencing floods above warning levels since the 2025 flood season [3] - The Pearl River Commission has coordinated with provincial water departments to enhance flood prevention and response efforts, achieving a unified approach to water engineering management [3][4] - A comprehensive flood control plan was developed, expanding the number of jointly managed water projects from 38 to 45 [3] Group 2: Water Resource Management - The Commission has effectively managed water levels in key reservoirs, ensuring a storage capacity of 308 billion cubic meters was prepared for flood control [3][5] - As of October 14, key reservoirs in the upper reaches of the Xijiang River had an effective storage capacity of 214 billion cubic meters, with storage rates exceeding 95% [5] Group 3: Impact of Flood Control Efforts - During the flood season, 3,281 large and medium-sized reservoirs in the Pearl River Basin were utilized, preventing flooding in 575 towns and protecting 2.77 million acres of farmland [4] - The flood control measures successfully avoided the occurrence of major floods in the Xijiang, Beijiang, and Dongjiang rivers, ensuring the safety of the region [4]

Core Viewpoint - The article discusses the proactive measures taken by Sichuan province to manage flood risks during the main flood season, emphasizing the use of advanced technology and scientific water management strategies to mitigate the impact of heavy rainfall and potential flooding [3][8][10]. Monitoring and Early Warning - Sichuan has implemented advanced monitoring systems, including phased upgrades to rainfall radar technology, to predict risks of mountain floods and mudslides, enhancing the ability to respond to severe weather events [5][6][7]. - Real-time rainfall data from over 50 kilometers away is utilized to assess flood risks, allowing for timely evacuations of affected populations [6][7]. Flood Response - The province has effectively managed floodwaters through coordinated operations of key water infrastructure, such as the Zhipingpu Reservoir, which has significantly reduced peak flood flows by 60% [8][10]. - The combined efforts of various water management projects have successfully lowered water levels in critical areas, preventing severe flooding in urban centers [9][10]. Risk Assessment - The use of high-tech diagnostic tools for monitoring dam safety has been introduced, moving away from traditional manual inspections to a more data-driven approach [11][12]. - The province is also focusing on enhancing monitoring capabilities for sudden natural disasters like mountain floods and mudslides through innovative technologies [13]. Water Resource Management - Despite current flood management successes, concerns about potential drought conditions in the future have prompted efforts to ensure adequate water reserves are maintained [14]. - As of early July, Sichuan's water conservation efforts have resulted in over 70 billion cubic meters of stored water, providing a buffer against possible drought scenarios [14].