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地理科学  2002 

基于GIS技术的泥石流风险评价研究

, PP. 300-304

Keywords: 泥石流,危险性,风险评价,地理信息系统

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Abstract:

为了满足对自然灾害预测不断增长的紧迫要求,泥石流风险评价成为帮助决策过程重要的基础工具之一。即使泥石流风险性各组分的评价很困难,但地理信息系统可辅助提出这种风险性制图的有关方法。我们以云南省为研究区,选取6个成因因子参与泥石流危险度敏感性分析,通过将研究区易损性评价图与危险性评价图叠加分析,编制出云南省泥石流风险评价图。该图描述了在现有自然条件和人类活动下的泥石流风险敏感区。研究成果为全面反映灾情,确定减灾目标,优化防御措施,进行减灾决策提供了重要依据。

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