基于层次分析法和信息量法的泥石流危险性分析——以延边州地区为例
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摘要
泥石流作为一种突发性地质灾害,具有运动快、历时短等特点,严重威胁人类生命财产安全[1]。本研究将地理信息系统(Geographic Information System简称GIS)和遥感技术(Remote Sensing简称RS)相结合,同时采用层次分析法和信息量法分别对延边朝鲜族自治州地区的泥石流危险性进行分析,结合已有相关研究数据,选取为高程、坡度、土地利用、河流水系、断层5个评价因子,先分别利用层次分析法和信息量法对各个影响因子赋予权重值,再利用GIS绘制各评价因子的栅格图,最后将各因子的栅格图进行叠加分析,得到延边州的泥石流危险区划图。
As a kind of sudden geological disaster, debris flow is characterized by fast movement and short duration, which seriously threatens the safety of human life and property[1]. This study will be of Geographic Information System, Geographic Information System(GIS) and Remote Sensing techniques(Remote Sensing RS for short), USES the method of analytic hierarchy process(AHP) and the amount of Information at the same time respectively in Yanbian Korean autonomous prefecture region of debris flow risk is analyzed, combining with the existing relevant research data, the selection of elevation, slope, land use, river System, fault 5 evaluation factors, respectively using the method of analytic hierarchy process(AHP) and the amount of Information given to each influence factor weights, using GIS map of each evaluation factor grid, Finally, the raster maps of each factor are superimposed and analyzed to obtain the debris flow hazard zoning map of Yanbian prefecture.
As a kind of sudden geological disaster, debris flow is characterized by fast movement and short duration, which seriously threatens the safety of human life and property[1]. This study will be of Geographic Information System, Geographic Information System(GIS) and Remote Sensing techniques(Remote Sensing RS for short), USES the method of analytic hierarchy process(AHP) and the amount of Information at the same time respectively in Yanbian Korean autonomous prefecture region of debris flow risk is analyzed, combining with the existing relevant research data, the selection of elevation, slope, land use, river System, fault 5 evaluation factors, respectively using the method of analytic hierarchy process(AHP) and the amount of Information given to each influence factor weights, using GIS map of each evaluation factor grid, Finally, the raster maps of each factor are superimposed and analyzed to obtain the debris flow hazard zoning map of Yanbian prefecture.
引文
[1]王晓朋,潘懋,任群智.基于流域系统地貌信息熵的泥石流危险性定量评价[J].北京大学学报(自然科学版),2007(2):211-215.
[2]延边朝鲜族自治州地方志编纂委员会.延边年鉴2015[M].延吉:延边人民出版社,2015,12:19.
[3]赵鹏大,胡旺亮.矿床统计预测[M].北京:地质出版社,1983.
[4]张俊峰,何政伟,汪宙峰.基于GIS的信息量法在天山公路地质稳定性评价系统中的应用[J].测绘科学,2008,33(2):170-171.
[5]Saaty T L.The Analytic Hierarchy Process[M].New York:McGrawHill,1980:11-76.
[2]延边朝鲜族自治州地方志编纂委员会.延边年鉴2015[M].延吉:延边人民出版社,2015,12:19.
[3]赵鹏大,胡旺亮.矿床统计预测[M].北京:地质出版社,1983.
[4]张俊峰,何政伟,汪宙峰.基于GIS的信息量法在天山公路地质稳定性评价系统中的应用[J].测绘科学,2008,33(2):170-171.
[5]Saaty T L.The Analytic Hierarchy Process[M].New York:McGrawHill,1980:11-76.