黔南暴雨洪涝灾害情势及防御

根据黔南州1983—2007年共25 a的暴雨洪涝灾害资料及降水资料,对黔南州洪涝灾害的基本特征和主要特点进行分析、总结,并结合该州气候变化趋势及人文地理、经济社会发展等情况进行研究,结果表明:5—8月是该州暴雨洪涝灾害的多发季节,尤以6月最多,7月次之;州的南部和中部地区洪涝灾害要重于北部地区,而且随着经济的发展,暴雨洪涝灾害所造成的损失越来越大,全州防御暴雨洪涝灾害面临的形势更加严峻。同时,根据防灾减灾面临的形势提出一些防御措施。

Flood disaster situation and defense in southern Guizhou

Base on Southern Guizhou rainstorm data and floods over 1983～2007,through analyzing the basic and main characteristics of flood,combined with the trend of climate change and human geography,economic and social development of case study results show that： the flood disaster multiple seasons is May to August in the Southern Guizhou,particularly in June,July took the second place;the floods were more serious which in southern and central.With the development of economic,heavy rain caused flood damage is increasing.Heavy rainfall and other extreme weather events will increase,the specific human geography environment,the gradual deterioration of ecological environment,and floods control infrastructure lags behind so that the state is Confronted with the situation has beening worsening.Storm floods also made some of the defensive measures.