Flash flood disasters assessment in Yuzhou Distirct of Yulin City，Guangxi
Li Changzhi1,2， Zhang Miao1,2， Zhang Qiyi1,2，Weng Jiachao3，Huang Xuanlin4
（1. China Institute of Water Resources and Hydropower Research，Beijing 100038；
2.Research Center on Flood and Drought Disaster Reduction ， Ministry of Water Resources， Beijing 100038 ；
3.Office of Flood Control and Drought Reduction of Yuzhou Distirct, Yulin 537000;
4. Yeheng Survey and Design Co. Limited in Guangxi Province, Yulin 537000)）
Abstract：Using topographic maps, attribute data of watershed and outputs of flash flood disaster investigations, this paper presented the techniques and outcomes for flash food disasters assessment in Yuzhou District. The primary preparedness for assessment was firstly introduced. Then, it was demonstrated that the major components of assessment, including design rainfall-runoff determination in watersheds, existing flood conveying capacity estimation, critical rainfall and stages determination, and flood hazard mapping for the villages along streams in mountain-hill-area in Yuzhou District. Finally, recommendations were provided to assist flash flood prevention and control in Yuzhou District, improving the monitoring and earning warning system on flash flood, and identifying potential flash flood types and areas.
2016, Vol. 26 
