Comprehensive assessment on landslides and debris flows in Sichuan Province based on GIS and RS

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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）

	Comprehensive assessment on landslides and debris flows in Sichuan Province based on GIS and RS
	Zhang, BL 1; Zhang, SM 2; Zhou, WC 3
	2007
会议名称	4th International Conference on Debris-Flow Hazards Mitigation - Mechanics, Prediction, and Assessment
会议日期	2007-9-10~13
会议地点	Chengdu, PEOPLES R CHINA
关键词	landslides and debris-flows comprehensive assessment Geographic Information Systems remote sensing Sichuan Province
页码	491-500
通讯作者	Zhang, BL
英文摘要	Integrating the technology of remote sensing (RS) and geographic information systems (GIS), we built a comprehensive assessment information system for geo-hazards (landslides and debris flows). Locations of landslides and debris flows were established by manual interpretation after preprocessing RS images, and environmental factors were obtained through a method of GIS spatial analysis. Relationships between geo-hazard locations and each type of environmental factor were analyzed, and the factors closely related to geo-hazards were selected as the basic factors for a risk zonation. The values of the selected factors were evaluated through expert evaluation according to their relationships with geo-hazard locations, and the risk zonation was established using a method of analogy. Results indicated that the numbers of landslides and debris flows having areas >900 m(2) were 435 and 715, respectively, and that they were distributed mainly in the middle and southern parts of Sichuan Province. Slope, hypsography, lithology and rainfall were important conditions for both landslides and debris flows. Distance to a river and the degree of vegetation coverage were important for debris flows, but were of less importance for the occurrence of landslides. The regions with high risk degree were mainly in the south of Sichuan Province, especially near Panxi, and across a broad section of the middle of Sichuan Province. This research has done an effective exploration on an assessment of geological disasters using integrated RS and GIS technology, so as to provide a scientific basis for methods to prevent geological disasters.
收录类别	SCI
会议主办者	Amer Geophys Union, Assoc Engn Geol, Amer Soc Civil Engineers, Environm & Water Resources Inst Amer, Amer Soc Civil Engineers, Geo-Inst, Geol Soc Amer, Int Assoc Hydraul Engn & Res, Int Assoc Hydrol Sci, Int Ctr Integrated Mt Dev, Int Consortium Landsides, Int Eros Control Assoc, Int Union Forest Res Org, Japan Landslides Soc, Japan Soc Eros Control Engn, US Geol Survey, Chinese Acad Sci, Chinese Govt Sichuan Province, Natl Nat Sci Fdn China
会议录	DEBRIS-FLOW HAZARDS MITIGATION: MECHANICS, PREDICTION, AND ASSESSMEN
会议录出版者	MILLPRESS SCIENCE PUBLISHERS ; PO BOX 84118, 3009 CC ROTTERDAM, NETHERLANDS
会议录出版地	PO BOX 84118, 3009 CC ROTTERDAM, NETHERLANDS
语种	英语
ISBN号	978-90-5966-059-5
WOS记录号	WOS:000267333300047
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/9190]
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）
作者单位	1.Shandong Normal University, Jinan, China 2.Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China, 3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
推荐引用方式 GB/T 7714	Zhang, BL,Zhang, SM,Zhou, WC. Comprehensive assessment on landslides and debris flows in Sichuan Province based on GIS and RS[C]. 见:4th International Conference on Debris-Flow Hazards Mitigation - Mechanics, Prediction, and Assessment. Chengdu, PEOPLES R CHINA. 2007-9-10~13.