| Along with the social development,the huge change in the human and the nature to get along with mode,especially the frequent extreme weather caused by the floods,the moment of human life and property safety,caused great threat,flood control and pressure increasing.Analysis of historical floods,it’s not hard to find,and frequency at the top of mountain torrent disaster accounted,and property damage and casualties caused by it,the destruction of the ecological environment is also more big.It east edge yongfeng county is located at jitai basin,there are many small rivers in the county,the river basin area of more than 50 km2 has 19,aerotaxis mountain rivers,rainfall are the direct factors mountain torrent disasters and excitation condition.Steep rise and fall,destructive strong,is the obvious characteristics of these river flood.Therefore,it is very important to analyze the flood situation of small watershed and master its characteristics.To build a well-off society in an all-round way,to achieve economic,social and environmental coordinated development,to the mountain torrent disaster prevention and control in this paper combined with yongfeng county population distribution,regional distribution,hydrology and meteorology,topography,the social economy,history,mountain flood disasters,wading engineering,flash flood ditch basic information,such as the current situation of basic situation and control of small watershed storm flood characteristics,present situation of flood control capacity,danger zone hierarchies and early-warning index analysis,describes the status quo,yongfeng county mountain flood disasters in yongfeng county to evaluate the flood control capacity present situation,from the aspects of non-engineering measures and engineering measures,for the county mountain torrent disaster early warning,personnel transfer,temporary resettlement provide indexes such as the basis,and puts forward the prevention and treatment of opinions and Suggestions. |
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