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中小河流洪水早期预警系统
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焦点访谈|应对汛期极端天气 多措并举筑牢安全防线
Yang Shi Wang· 2025-07-03 13:27
Core Viewpoint - Recent extreme weather events in China, including heavy rainfall and drought, have significantly impacted agricultural production and urban infrastructure, necessitating urgent disaster response measures and improved monitoring systems [1][5][9]. Group 1: Extreme Weather Events - China has experienced a notable increase in extreme weather events, including high temperatures, droughts, and heavy rainfall, particularly in the first half of the year [5][9]. - The rainfall in Nanyang, Henan, reached 225.3 mm in just a few hours, leading to emergency response actions [3]. - In Yunnan, heavy rainfall of 142.7 mm caused severe flooding, prompting the safe relocation of over 1,400 residents [5]. Group 2: Flood and Drought Patterns - The current weather pattern shows a division between flooding in the north and drought in the south, with significant flooding expected in the Yellow River and Huai River basins [11]. - Major rivers in China are experiencing a slight decrease in annual runoff, approximately 20% lower than the average for this time of year, while reservoir storage is 12% higher than usual, aiding drought response [11][14]. Group 3: Disaster Response and Management - A new early warning system for small and medium rivers has been developed, allowing for flood predictions within 24 hours for any river in the country [16]. - The Ministry of Water Resources has implemented a "grid management" approach for flood disaster prevention, ensuring effective evacuation and response strategies [24]. - Local governments are actively engaged in disaster recovery efforts, with significant manpower and resources allocated for cleanup and support for affected communities [26][28]. Group 4: Agricultural Impact - The heavy rainfall has adversely affected crops, particularly rice and passion fruit, with significant areas reported as damaged [29][33]. - Agricultural authorities are providing emergency supplies, including fertilizers, to support recovery efforts for affected farmers [31]. - Community efforts are underway to deliver essential supplies and meals to those impacted by the flooding, showcasing local solidarity [35][37].