基于GIS的地质灾害危险性区划研究

Research on Geological Hazards Risk Zonation Based on GIS

GIS具有强大的空间分析能力和数据处理能力,可用于对各种地质灾害的发生概率和可能的致灾后果进行评估,通过开展对多种不同信息的综合分析,分析空间对象之间的相互关系,从而揭示地质灾害的演化规律,为防灾减灾工作提供理论依据。以GIS在地质灾害中的运用现状为基础,提出一种基于GIS的地质灾害危险性区划方法,并将该方法用于Vulcano火山岛的实例研究中,取得了较好的效果。

GIS has powerful spatial analysis and data processing capacities, and it can be applied to evaluate the probability and possible consequences of geological disasters. And through the comprehensive analysis of various information, the GIS can find out the relationship between different space objects, so as to illustrate the evolvement rule of geological disasters, which will provide a scientific basis for decision-making of disaster prevention and mitigation. A geological disaster risk zonation method was proposed, which was based on GIS and it’s actuality of application in geological disasters. The proposed method was applied in the study of volcanic island Vulcano instance, and good results have been achieved.