摘要
地质灾害的频繁发生,严重威胁着人民生命财产安全,并阻碍着社会经济可持续发展,因此对地质灾害发生区域的预测尤为重要。文章在分析清江流域历来地质灾害空间分布规律和影响清江流域地质灾害发生发育的因素基础上,确定了影响该区域地质灾害发生的重要因素,通过数学模型,将这些因素进行定量化和分级,采用GIS的信息处理和空间叠加方法,实现了对清江流域地质灾害空间分布的预测,获得清江流域地质灾害预测分布图。
Geological hazards such as landslide,rock fall,debrise flow,occur frequently and bring about heavy damage to people's life and property,and thread to sustainable development of society.The ability to study the law of hazards distribution and predicate geological hazards is of significance for local government to evaluate future planning policies.The purpose of this paper is to study the law of hazards distribution and the prone zone of locate geological hazards in Qingjiang River Valley with effort application of information processing and GIS technology.Some conclusions are made:①The systematic research shows that geological hazards are produced by interaction of geoenvironment,②Mathematical models have been developed to quantify likely hazard exposure factors such as geology,human engineering activity,geomorphology,rainfall,river erosion and so on and multiple factors,③Geological hazards risk forecasting and risk assessment map have been done based on GIS.
出处
《中国地质灾害与防治学报》
CSCD
2002年第4期77-82,共6页
The Chinese Journal of Geological Hazard and Control
关键词
清江流域
GIS技术
地质灾害预测
Qingjiang River valley
GIS technology
geological hazard forecasting
