北京师范大学学报（自然科学版）Issue(4)：429-434,6.
湖南暴雨洪涝灾害损失时空特征及影响因素分析
TEMPORAL-SPATIAL DISTRIBUTION OF RAINSTORM-FLOOD DISASTERS IN HUNAN,CHINA AND ITS AFFECTING FACTORS
摘要
Abstract
Records for rainstorm-floods in Hunan from 1984-2007 were analyzed for disaster temporal-spatial distribution.Both nature and socio-economic developments were considered,factors such as annual precipitation,GDP,population,urban rate and urban built-up were studied to explore their linkage to disaster distribution.Data indicated that rainstorm-flood disaster in Hunan tended to be worse and be presented with an uneven temporal-spatial distribution.They were mainly concentrated in the summer;the most severely affected areas were in the downstream basins of the Xiang,Zi,Yuan,Li Rivers and in the Dongting Lake regions.The trend of flood-induced economic loss was influenced by both natural and social factors.Positive correlation was found between loss and overall annual precipitation,GDP,population and urban rate in Hunan,with the first two factors dominating.Although precipitation was a direct cause for rainstorm-flood disaster,with rapid development of society and economy,decreased regional vulnerability to disaster,disproportionally increased regional exposure,still led to more severe rainstorm-flood risks.关键词
暴雨洪涝/时空格局/脆弱性/暴露性/影响因素/湖南Key words
rainstorm-flood/temporal-spatial distribution/vulnerability/exposure/contributing factors/H unan引用本文复制引用
李梦婕,汪明,史培军..湖南暴雨洪涝灾害损失时空特征及影响因素分析[J].北京师范大学学报（自然科学版）,2014,(4):429-434,6.基金项目
国家自然科学基金面上资助项目(41271286) （41271286）
