基于GIS综合评价法的地质灾害易发性研究
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摘要
为了有效分析某研究区地质灾害的分布规律、发育特征、影响因素以及地质灾害易发性,采用GIS的综合评价法对地质灾害易发性进行了深入研究。研究了该区共发生地质灾害171处,其中滑坡、崩塌、泥石流发生次数较多,并选定研究区降水量、地形坡度、断层、海拔高度、岩土体类型以及人工工程活动6项影响因子作为地质灾害易发性评价指标,并利用层次分析法求出各项权重,结合GIS空间分析功能,对地质灾害易发性划分。研究结果为:该研究区地质灾害划分为9个高易发区域,14个中度易发区域,1个低易发区域和13个不易发区域。研究为类似工程地质条件下地质灾害易发性提供一定的理论基础。
In order to analyze the distribution law,development characteristics,influencing factors and the vulnerability of geological disasters in a certain research area,the comprehensive evaluation method of GIS was used to study the vulnerability of geological disasters.The co-occurrence of geological 171 landslides,landslides,landslides and mudslides occurred more frequently,and six influencing factors such as precipitation,topography gradient,fault,altitude,rock and soil types and artificial engineering activities in the study area were selected as the susceptibility to geological disasters evaluation index,and the use of analytic hierarchy process to calculate the weight,combined with GIS spatial analysis capabilities,the vulnerability of geological hazards. The study results show that the study area geological disasters are divided into nine high-prone areas,14 moderately prone area,a low-prone area and 13 less-developed areas. The study provides a theoretical basis for the vulnerability of geological disasters under similar engineering geological conditions.
In order to analyze the distribution law,development characteristics,influencing factors and the vulnerability of geological disasters in a certain research area,the comprehensive evaluation method of GIS was used to study the vulnerability of geological disasters.The co-occurrence of geological 171 landslides,landslides,landslides and mudslides occurred more frequently,and six influencing factors such as precipitation,topography gradient,fault,altitude,rock and soil types and artificial engineering activities in the study area were selected as the susceptibility to geological disasters evaluation index,and the use of analytic hierarchy process to calculate the weight,combined with GIS spatial analysis capabilities,the vulnerability of geological hazards. The study results show that the study area geological disasters are divided into nine high-prone areas,14 moderately prone area,a low-prone area and 13 less-developed areas. The study provides a theoretical basis for the vulnerability of geological disasters under similar engineering geological conditions.
引文
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[13]许晓霞,张福平,王有林,等.基于GIS和RS的舟曲县地质灾害易发性评价[J].甘肃科学学报,2015,27(6):26-31.Xu Xiaoxia,Zhang Fuping,Wang Youlin,et al.Susceptibility assessment of geological hazards in Zhouqu County based on GIS and RS[J].Journal of Gansu Sciences,2015,27(6):26-31.
[14]张朝洪,廖根权,徐曙林.嘉陵江流域北碚段基于GIS平台的地质灾害易发性评价[J].地质灾害与环境保护,2009,20(3):45-49.Zhang Chaohong,Liao Genquan,Xu Shulin.Evaluation of earthquake disaster evaluation based on gis platform in beibu district,Jialingjiang river valley[J].Journal of Geological Hazards and Environment Preservation,2009,20(3):45-49.
[15]左双英,程欣宇,梁风,等.基于GIS的贵阳市地质灾害危险性评价[J].地球与环境,2005,33(4):83-88.Zuo Shuangying,Cheng Xinyu,Liang Feng,et al.Geological hazard risk assessment based on GIS in Guiyang[J].Earth and Environment,2005,33(4):83-88.
[2]王骏,李东林,覃伟.基于GIS和模糊综合评判法的重庆涪陵区地质灾害易发性区划[J].重庆三峡学院学报,2016,32(3):81-86.Wang Jun,Li Donglin,Tan Wei.Evolutionary zone of geological hazards in fuling district,chongqing,based on gis and fuzzy comprehensive judgment[J].Journal of Chongqing Three Gorges University,2016,32(3):81-86.
[3]王辉.基于GIS与AHP技术的地质灾害易发性评价研究[J].内蒙古煤炭经济,2017(13):50-51.Wang Hui.Study on the assessment of geological hazards based on GIS and AHP technology[J].Inner Mongolia Coal Economy,2017(13):50-51.
[4]高治群,薛传东,尹飞,等.基于GIS的信息量法及其地质灾害易发性评价应用——以滇中晋宁县为例[J].地质与勘探,2010,46(6):1112-1118.Gao Zhiqun,Xue Chundong,Yin Fei,et al.GIS-based method of information quantity and evaluation of its vulnerability to geological hazards:taking Jinning County in Yunnan as an example[J].Geology and Exploration,2010,46(6):1112-1118.
[5]辜冬梅,姚安林,尹旭东,等.基于层次—模糊评价法的山区油气管道地质灾害易发性研究[J].中国安全生产科学技术,2012,8(5):52-57.Gu Dongmei,Yao Anlin,Yin Xudong,et al.Study on the proneness of geological hazards in mountain oil and gas pipelines based on the hierarchy-fuzzy evaluation method[J].Journal of Safety Science and Technology,2012,8(5):52-57.
[6]丁伟翠,薛星桥,杨强,等.基于GIS的甘肃省灵台县地质灾害易发性区划研究[J].水土保持研究,2010,17(3):32-34.Ding Weicui,Xue Xingqiao,Yang Qiang,et al.Study on the regionalization of geological hazards in Lingtai County of Gansu Province Based on GIS[J].Research of Soil and Water Conservation,2010,17(3):32-34.
[7]寇丽娜,边疆,张婷婷,等.基于GIS的信息量法在青海民和区域地质灾害易发性评价中的应用[J].西北地质,2017,50(2):244-248.Kou Lina,Bian Jiang,Zhang Tingting,et al.Application of GIS based information volume method to evaluating the susceptibility of geological disasters in Minhe District of Qinghai[J].Northwestern Geology,2017,50(2):244-248.
[8]王念秦,姚勇,周自强,等.农村乡镇地质灾害易发性综合评价方法研究[J].西安科技大学学报,2008,28(4):657-661.Wang Nianqin,Yao Yong,Zhou Ziqiang,et al.Study on the comprehensive evaluation method of geological disaster in rural villages[J].Journal of Xi'an University of Science and Technology,2008,28(4):657-661.
[9]孙莹洁,田运涛,王爱军.基于GIS的泾川县地质灾害易发性评价[J].中国水土保持,2011(5):46-48.Sun Yingjie,Tian Yuntao,Wang Aijun.GIS-based evaluation of geological hazards in Jingchuan County[J].Soil and Water Conservation in China,2011(5):46-48.
[10]王哲,易发成,陈廷方.基于模糊综合评判的绵阳市地质灾害易发性评价[J].科技导报,2012,30(31):53-60.Wang Zhe,Yi Facheng,Chen Tingfang.Assessment of the susceptibility to geological disasters in Mianyang City based on fuzzy comprehensive evaluation[J].Science&Technology Review,2012,30(31):53-60.
[11]周建伟,张帅,陈成名,等.基于GIS的建设场地地质灾害危险性综合评价研究[J].中国水运,2009,9(12):143-144.Zhou Jianwei,Zhang Shuai,Chen Chengming,et al.Research on the geological hazard comprehensive evaluation of construction site based on GIS[J].China Water Transport,2009,9(12):143-144.
[12]陶虹,康金栓.陕西省地质灾害易发性综合评价方法初探[J].中国地质灾害与防治学报,2008,19(4):77-81.Tao Hong,Kang Jinshuan.Preliminary sudy on comprehensive evaluation method of geological hazards in Shaanxi Province[J].The Chinese Journal of Geological Hazard and Control,2008,19(4):77-81.
[13]许晓霞,张福平,王有林,等.基于GIS和RS的舟曲县地质灾害易发性评价[J].甘肃科学学报,2015,27(6):26-31.Xu Xiaoxia,Zhang Fuping,Wang Youlin,et al.Susceptibility assessment of geological hazards in Zhouqu County based on GIS and RS[J].Journal of Gansu Sciences,2015,27(6):26-31.
[14]张朝洪,廖根权,徐曙林.嘉陵江流域北碚段基于GIS平台的地质灾害易发性评价[J].地质灾害与环境保护,2009,20(3):45-49.Zhang Chaohong,Liao Genquan,Xu Shulin.Evaluation of earthquake disaster evaluation based on gis platform in beibu district,Jialingjiang river valley[J].Journal of Geological Hazards and Environment Preservation,2009,20(3):45-49.
[15]左双英,程欣宇,梁风,等.基于GIS的贵阳市地质灾害危险性评价[J].地球与环境,2005,33(4):83-88.Zuo Shuangying,Cheng Xinyu,Liang Feng,et al.Geological hazard risk assessment based on GIS in Guiyang[J].Earth and Environment,2005,33(4):83-88.