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
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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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