摘要
滃江是北江一级支流,2022年6月发生全流域洪水,下游控制站出现建站以来第二大洪峰流量。为进一步掌握滃江流域中下游洪水形成传播规律,提高滃江流域水旱灾害防御水平,灾害发生后,广州水文分局及时开展了洪水调查分析,并采用短历时暴雨极值分析法、P-Ⅲ型频率分析法和对照分析法等,对该场暴雨的时空分布、成因、演变规律以及洪水量级及重现期进行分析。针对滃江流域“2022·6”洪水暴露出的问题,结合现状防洪体系提出对策建议,可为未来滃江流域防洪抗旱工作提供参考。
The Wengjiang river is a first-order tributary of the Beijiang river.In june 2022,a basin-wide flood occurred,resulting in the second-largest peak discharge since the establishment of the downstream control station.To further understand the flood formation and propagation mechanisms in the middle and lower reaches of the Wengjiang river basin and to enhance the level of flood and drought disaster prevention,the Guangzhou hydrology branch conducted a post-event flood investigation and analysis promptly after the disaster.Methods including short-duration storm extremum analysis,Pearson type III frequency analysis,and comparative analysis were employed to analyze the spatiotemporal distribution,causes,and evolution patterns of this storm event,as well as the flood magnitude and return period.In response to the problems exposed by the"June 2022"flood in the Wengjiang river basin,countermeasures and suggestions are proposed,considering the current flood control system,which can provide a reference for future flood and drought management in the basin.
作者
姚志坚
李兰茹
赵子惜
Yao Zhijian;Li Lanru;Zhao Zixi(Guangzhou Branch,Guangdong Provincial Hydrology Bureau,Guangzhou 510150,Guangdong)
出处
《陕西水利》
2026年第1期20-23,共4页
Shaanxi Water Resources
