摘要
桂中地区降水不少,但由于自然及人为等因素,旱情严重,成为广西著名的旱片之一。对其成因机制的探讨是桂中环境治理和区域开发的科学基础。在概述地质地理特征的基础上,进行了桂中旱区的干旱时空分析,重点揭示了桂中旱片的成因机制;然后,根据干旱类型、旱灾脆弱度及从便于地下水利用出发,进行了桂中旱片的综合区划;最后,遵循生态环境治理、综合抗旱与脱贫致富相结合的原则,提出了治理对策措施。
Because of natural and anthropogenic reasons, the middle Guangxi area has been an obvious drought tracts in Guangxi. Investigating mechanism of its formation is the scientific foundation of environmental harness and regional development in the middle Guangxi. On the basis of summarizing geological characteristics and geographic features, spatiotemporal analyses were carried out for the drought of the middle Guangxi, and its formation mechanism of the drought tracts is revealed emphatically. And then, the comprehensive division of drought tracts in the middle Guangxi is carried through according to drought types, drought vurnerability and convenience of groundwater utilization. Finally, in light of principle of harnessing ecoenvironmental, synthesizing drought prevention and shaking off poverty, the countermeasures are pointed out.
出处
《自然灾害学报》
CSCD
北大核心
2003年第4期47-54,共8页
Journal of Natural Disasters
基金
国家自然科学基金资助项目(40161004)
广西自然科学基金资助项目(桂科基0236046)
关键词
旱灾脆弱度
干旱类型
旱片综合区划
成因机制
formation mechanism
dry type
drought frail degree
drought comprehensive division
drought tracts in middle Guangxi
