Using fuzzy relations and GIS method to evaluate debris flow hazard
Song Shujun(宋述军) ; Zhang Baolei(张宝雷) ; Feng Wenlan(冯文兰) ; Zhou Wancun(周万村)
刊名Wuhan University Journal of Natural Sciences
2006
卷号11期号:4页码:875-881
关键词fuzzy relations geographic information system (GIS) debris flows hazard evaluation
合作状况其它
英文摘要The study area, located in the southeast of Tibet along the Sichuan-Tibet highway, is a part of Palongzangbu River basin where mountain hazards take place frequently. On the ground of field surveying, historical data and previous research, a total of 31 debris flow gullies are identified in the study area and 5 factors are chosen as main parameters for evaluating the hazard of debris flows in this study. Spatial analyst functions of geographic information system (GIS) are utilized to produce debris flow inventory and parameter maps. All data are built into a spatial database for evaluating debris flow hazard. Integrated with GIS techniques, the fuzzy relation method is used to calculate the strength of relationship between debris flow inventory and parameters of the database. With this methodology a hazard map of debris flows is produced. According to this map, 6.6% of the study area is classified as very high hazard, 7.3% as high hazard, 8.4% as moderate hazard, 32.1% as low hazard and 45.6% as very low hazard or non-hazard areas. After validating the results, this methodology is ultimately confirmed to be available.
资助信息the Knowledge Innovation Program of Chinese Academy of Sciences (KZCX2-SW-319-01)
语种英语
公开日期2010-11-17
内容类型期刊论文
源URL[http://ir.imde.ac.cn/handle/131551/2557]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
推荐引用方式
GB/T 7714
Song Shujun,Zhang Baolei,Feng Wenlan,et al. Using fuzzy relations and GIS method to evaluate debris flow hazard[J]. Wuhan University Journal of Natural Sciences,2006,11(4):875-881.
APA Song Shujun,Zhang Baolei,Feng Wenlan,&Zhou Wancun.(2006).Using fuzzy relations and GIS method to evaluate debris flow hazard.Wuhan University Journal of Natural Sciences,11(4),875-881.
MLA Song Shujun,et al."Using fuzzy relations and GIS method to evaluate debris flow hazard".Wuhan University Journal of Natural Sciences 11.4(2006):875-881.
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