Xinkuai News reporter Xu Lifu's correspondent Yue Shuixuan reported that Guangdong has entered the "Dragon Boat Water" rainfall concentration period, and recently ushered in the first "Dragon Boat Water" rainfall. According to the prediction of the meteorological department, there will be five large-scale heavy precipitation processes during the "Dragon Boat Water" this year. The average rainfall in the province is expected to reach about 350 mm, which is heavier than 325.2 mm in the whole year, and the spatial distribution difference is large. The main streams and tributaries of Dongjiang River, Xijiang River, Beijiang River, and Hanjiang River may have obvious water rising processes.
The reporter learned from the Provincial Water Resources Department that in response to the first "dragon boat water", the Guangdong Provincial Water Resources Department launched the Level IV emergency response for water conservancy flood control at 12:00 on May 18, comprehensively strengthened the deployment of defense work, and sent a working group to the front line to guide the flood control work. At the same time, strengthen the overall scheduling of the province, organize the backbone reservoirs in the basin to pre discharge and vacate the reservoir, dynamically control the outflow flow, and make good preparations for receiving rainstorm and flood.
In the Beijiang River basin, Feilaixia Reservoir, Lechangxia Reservoir, Jinjiang Reservoir, Changhu Reservoir, Nanshui Reservoir, Xiaokeng Reservoir, Jintan Reservoir and other reservoirs are maintained below the flood control level, and the discharge flow will be increased as the case may be. Since May 15, Feilaixia Reservoir and Lechangxia Reservoir have vacated 80 million cubic meters of water.
In the Dongjiang River basin, Xinfengjiang Reservoir has been discharging flood for 25 consecutive days since the sluice was opened on April 27. At present, it is below the flood limit water level, with a total of 420 million cubic meters of reservoir vacated. At present, it still maintains the full production of generator units and the full opening of spillway for flood discharge, which will further reduce the reservoir water level. Fengshuba Reservoir has vacated a storage capacity of 30 million cubic meters since May 16.
In western Guangdong, Hedi Reservoir has gradually increased its flood discharge to 300 cubic meters per second since 9:00 on May 19.
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Focus on preventing risks such as flood of big rivers
Continue to do a good job in five aspects of defense
The Provincial Water Resources Department said that this year's "Dragon Boat Water" should focus on preventing the possible mountain flood disasters caused by large rivers and heavy rainfall, small and medium-sized river floods and small water conservancy projects, and continue to do a good job in defense.
1 Strengthen the investigation and treatment of risk hazards, pay attention to the risk of bank slope collapse and collapse, and focus on whether there is collapse, landslide, seepage, piping and other dangerous situations. Since May, the provincial water conservancy system has carried out carpet inspection on water conservancy facilities. A total of 6058 working groups, 34437 person times, and 28705 projects were inspected. No major hidden dangers were found.
2 Do a good job in fine regulation of water conservancy projects, dynamically implement joint regulation of water conservancy projects in the basin, and pre discharge and release the reservoir in advance of Feilaixia, Lechangxia and Gaopi hydro junction in the Beijiang River basin.
3 Pay attention to the prevention of mountain torrents. The "Dragon Boat Water" heavy rainfall is often characterized by strong locality, strong short-term rainfall, and large accumulated rainfall. We should strictly prevent the risk of mountain torrents caused by local short duration heavy rainfall and high overlap of falling areas. Keep an eye on the areas prone to mountain torrents, issue early warnings in time, strictly implement the dual "call response" mechanism and prevention and control measures for disaster early warning directly to the grass-roots responsible person, and timely remind the prefecture and city to organize personnel in dangerous areas to transfer and avoid risks.
4 Focus on the weak links and key parts, strengthen the patrol and defense of reservoirs and embankments, pay attention to the risk of safe flood control of dangerous reservoirs, high-risk ponds, and reservoirs (hydropower stations) beyond the flood limit, strengthen the monitoring of key parts such as dams and flood discharge facilities, and timely find and deal with dangerous situations.
5 Prepare for emergency response, strengthen monitoring, early warning, forecasting and consultation, research and judgment, preset rescue teams, materials and equipment in advance, and timely and properly respond to and handle emergencies.
