SUN Xiaojuan,LUO Xiaoyi,QUAN Hechun*.Landslide susceptibility analysis around road based onGIS in Yanbian area[J].Journal of Yanbian University,2017,43(03):271-276.
基于GIS的延边地区道路周边滑坡灾害易发程度分析
- Title:
- Landslide susceptibility analysis around road based on GIS in Yanbian area
- Keywords:
- RS; GIS; AHP; susceptibility; disaster-inducing factors
- 分类号:
- P694
- 文献标志码:
- A
- 摘要:
- 为防治延边地区滑坡灾害,利用遥感技术(remote sensing,RS)和地理信息系统(geographic information system,GIS)对整个延边地区进行滑坡灾害易发程度分析,并在此基础上进一步分析该地区道路周边滑坡灾害易发区分布情况.首先,选择6个影响较大的滑坡灾害影响因子(坡度、坡向、土壤、地质、土地利用、断层),利用层次分析法(analytic hierarchy process,AHP)确定这6个因子的权重; 然后,结合GIS软件的栅格数据叠加功能绘制出滑坡灾害易发程度图,并
- Abstract:
- For prevent and control the landslide of the Yanbian region, we use the remote sensing technology and geographic information system for the whole analyzing degree of landslide hazards in Yanbian area, and on this basis, the distribution of landslide disasters in the area of the area is further analyzed. First, we select six influential landslide disaster impact factors(slope, slope direction, soil, geology, land use, fault)to determine the weight of the six factors by using analytic hierarchy process(AHP); Then, combining the grid data overlay function of GIS software to map the vulnerability of landslide disaster. The whole research area is divided into extremely high, high, medium and low four levels. Finally, the vulnerability of the landslide is superimposed on the buffer map of 200 m, 500 m, 800 m, 1 000 m and 1 000 m respectively, in order to analyze the distribution characteristics of landslide in various road buffer zones. It provides a reliable spatial data basis for selecting the key prevention zone of the landslide disaster in the surrounding area.
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备注/Memo
收稿日期: 2017-06-04
*通信作者: 权赫春(1979—),男,博士,副教授,研究方向为防灾减灾、GIS &RS应用.