湖南省山洪灾害经济损失评价

Evaluation of Economic Loss of Mountain Torrent Disaster in Hunan Province

山洪灾害是湖南省山丘区经济可持续发展的重要制约因素。文章采用山洪灾害经济损失的不稳定度Us和灾害直接经济损失占应得GDP百分比的平均数Cr,构建了湖南省山丘区山洪灾害灾损度指数DELI。研究表明,Us高值区和Cr高值区在空间上明显错位,前者为湘西自治州、怀化、张家界、郴州等,后者是张家界、娄底、邵阳等。根据DELI等级排序,建议应以张家界、湘西自治州、郴州、怀化、娄底、邵阳、永州等为序进行山洪灾害防治。

Mountain torrent disaster have already restricted Hunan Province＇ s sustainable development of economy. Using instability Cr of each city and the average ratio Us of direct economic loss of calamities to ideal GDP, this article constructs the economic loss index Ss and sets up a series of grades. Region analysis indicates that the regions whose values are high in Cr have departure with Us＇s high value areas. According to the economic loss index of Mountain torrent disaster Ss, we suggest that the national investment focus should be put to Zhangjiajie, Xiangxi, Chenzhou, Huaihua, Loudi, Shaoyang and Yongzhou in the DELL order.