Core Points - The National Flood Control and Drought Relief Headquarters held a meeting to analyze the flood situation in the Haihe River Basin due to continuous heavy rainfall [1] - Major rivers in the Haihe River Basin, including Yongding River and Chaobai River, have experienced the largest floods since measurement began, with Chaobai River recording the highest inflow since its reservoir was built in 1959 [1] - Emphasis was placed on ensuring the safety of people's lives and implementing precise flood control measures to achieve the "four no" goals: no casualties, no dam failures, no breaches in important levees, and no impacts on critical infrastructure [1] Flood Defense Measures - For Yongding River, flood defense measures include monitoring upstream flood volumes and peaks, controlling the operation of Guanting Reservoir, and evacuating personnel below flood inundation lines [2] - For Chaobai River, continuous monitoring and forecasting of the flood process are required, along with the effective use of Miyun Reservoir for flood control and timely evacuation of affected areas [2] - For the Puyihe River, precise forecasting and control of reservoir discharge are necessary to alleviate downstream flood pressure, with early warning systems in place for evacuating at-risk personnel [2] - For the Luan River, close monitoring of the flood process and coordinated operation of reservoirs are essential, along with timely evacuation of personnel from danger zones [2]

Core Viewpoint - The article reports on a significant flood event in the Liujiang River of the Pearl River Basin, triggered by continuous heavy rainfall since June 17, leading to severe flooding across 55 rivers in the region [1] Group 1: Rainfall and Flooding Impact - The main rain area experienced high overlap, with the maximum recorded rainfall reaching 1,330 mm in Liuzhou, Guangxi, and 880 mm in Puan, Guizhou [1] - The flood has resulted in the occurrence of extreme flooding in 55 rivers within the Xijiang water system [1] Group 2: Water Management Response - The Ministry of Water Resources, in collaboration with local water authorities from Yunnan, Guizhou, and Guangxi, has implemented a unified management strategy for water engineering to mitigate flood impacts [1] - Key reservoirs, including 28 major ones such as Longtan and Luojiao, have collectively retained 44.6 billion cubic meters of floodwater, significantly reducing downstream flow and alleviating flood pressure on the main river and its tributaries [1] Group 3: Current Situation and Monitoring - Currently, the water levels in the Liujiang River have peaked and are receding, with floodwaters progressing towards the middle and lower reaches of the Liujiang and Xijiang rivers [1] - The Ministry of Water Resources will continue to monitor the flood situation closely and guide local water authorities in the scientific management of reservoir operations to further mitigate flood risks [1]

Group 1 - Continuous heavy rainfall since June 18 has led to severe flooding in the Liujiang River basin, with areas like Liuzhou and Hechi experiencing heavy to extremely heavy rainfall, including a record 1046 mm at the Rongshui station [2] - A total of 25 rivers and 28 hydrological stations in Guangxi have reported flood levels exceeding warning thresholds by 0.01 to 3.77 meters, with the Jin Cheng Jiang area reaching its highest water level since 1983 [2] - The Guangxi water resources and hydrology departments have issued 53 flood warnings, including 8 yellow and 45 blue alerts, maintaining a 100% warning issuance rate [2] Group 2 - The Guangxi Water Resources Department has guided the Liuzhou Water Resources Bureau to conduct joint reservoir operations in advance, releasing a total of 4.14 billion cubic meters of water from tiered power stations to mitigate flooding [3] - The Dalu and Longji reservoirs have effectively reduced peak flood flow by 1500 cubic meters per second, lowering the flood peak water level in Rongshui by 0.3 to 0.8 meters [3] - Predictions indicate that the water level at the Jin Cheng Jiang hydrological station will drop below warning levels in the next 6 hours, while some small rivers in Baise, Guilin, Liuzhou, and Hechi may still experience flooding [3]