Core Insights - Continuous typhoons have led to the opening of floodgates at the Baise Water Conservancy Hub from October 1 to around October 10, impacting water levels and flood management in the region [2] Group 1: Rainfall and Water Levels - As of October 9, 20:00, 11 rivers and 17 monitoring stations in Guangxi exceeded warning levels by 0.01 to 5.46 meters, with the highest exceeding level recorded at 2.88 meters in the Yongning District of Nanning [3] - Rainfall in Nanning, Liuzhou, and Fangchenggang has been significant, with the maximum recorded rainfall of 26.5 millimeters in Nanning's Yongning District [2] Group 2: Flood Management Strategies - The Guangxi water conservancy department has implemented precise scheduling and management of 15 reservoirs and hydropower stations in the Yujang River basin to mitigate flood risks [5] - On October 6, the Naban Reservoir was utilized to store 1.23 billion cubic meters of floodwater, reducing the flood peak water level in Ming County by over 2 meters [5] - The Baise Water Conservancy Hub has reduced its outflow from an inflow of 4,500 cubic meters per second to 1,810 cubic meters per second, achieving a 60% reduction in outflow to lower flood risks in Baise City [5] - The flood management efforts are projected to reduce the peak flow in Nanning by approximately 1,800 cubic meters per second, lowering the flood peak water level by over 1.5 meters [5]

Core Points - The article discusses the response of the water resources department to the severe flooding in the Yujiang River basin, which has been affected by recent typhoons and heavy rainfall [1][2] Group 1: Flood Impact - The Yujiang River system has experienced its largest flood since 2001, with 45 rivers exceeding warning levels, and the maximum exceedance reaching 5.87 meters [1] - Historical floods were recorded in three rivers: the Wankou River, the Long'an section of the Right Yujiang River, and the Jian River [1] Group 2: Government Response - The Vice Commander of the National Defense General and Minister of Water Resources, Li Guoying, has prioritized flood defense efforts, holding two special meetings during the National Day and Mid-Autumn Festival to assess the situation [2] - The Ministry of Water Resources has coordinated with local authorities to manage the water reservoir operations effectively, successfully retaining 34.3 billion cubic meters of floodwater [2] Group 3: Reservoir Management - The Baise Reservoir reduced the peak inflow from 8,600 cubic meters per second to 2,900 cubic meters per second, achieving a peak reduction rate of 77% and lowering the water level in Baise city by 7.2 meters [2] - Prior to the flood, the reservoirs were preemptively discharged to lower peak water levels in several towns, effectively reducing flood heights by over 1 meter [2] Group 4: Ongoing Monitoring - The water levels in the Yujiang River and its tributaries remain above warning levels, with the flood peak currently passing through the Nanning section [2] - The Ministry of Water Resources will continue to enhance monitoring, forecasting, and management during the flood recession period [2]

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]

Core Viewpoint - The Yangtze River Water Resources Commission held a flood prevention meeting to analyze the flood and drought situation in the basin and to arrange recent water and drought disaster defenses and coordinated reservoir operations [1] Summary by Relevant Sections - **Precipitation and Water Supply** - From January to April this year, precipitation in the middle and lower reaches of the Yangtze River was 27.6% lower than the average for the same period [1] - Overall water inflow was approximately 24.3% lower than historical averages [1] - **Current Water Levels** - Water levels at major control stations in the middle and lower reaches of the Yangtze River are fluctuating and gradually rising but remain below the historical average for the same period [1] - **Irrigation Needs** - The middle and lower reaches of the Yangtze River are currently in the peak irrigation period for crops such as rice [1] - **Reservoir Operations** - To ensure irrigation water supply, the Yangtze River Commission is increasing the average daily outflow from the Three Gorges Reservoir from 8,390 cubic meters per second to approximately 12,000 cubic meters per second by May 15 [1]