Landslide Hazard Assessment Based on GIS A Case Study of a Hydropower Station Area in China

doi:10.1109/ETTandGRS.2008.104

	Landslide Hazard Assessment Based on GIS A Case Study of a Hydropower Station Area in China
	Liang, SY; Yang, XM; Liang, SY (reprint author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ, Lanzhou 730000, Peoples R China.
	2009
会议日期	DEC 21-22, 2008
会议地点	Shanghai, PEOPLES R CHINA
关键词	GIS AHP landslide hazard assessment
DOI	10.1109/ETTandGRS.2008.104
页码	155-158
英文摘要	Geographical information systems (GIS) are powerful for spatial analysis, and the analytic hierarchy process (AHP) has certain advantages in multi-index integrated evaluation. The combination of GIS with AHP provides an effective measure for hazard assessment of landslides. Based on detailed field observations and analysis of the factors influencing landslides in the region of the Lianlu Hydropower Station on the Tao River in Gansu province, northwestern China, an aggregate evaluation index system was set up including various factors such as density of faults, relative height of hills, gradient of slopes, land usage and engineering activity. The weight of each factor was determined by AHP. Supported by GIS, using the grid of 1km(2) as the evaluation cell, thematic layers for each factor were established and superimposed. In the end, the study area was divided into four types of risk regions: high-hazard, medium-hazard, low-hazard and non-hazard regions. The results coincide well with the actual hazard distribution observed, and show that the coupled method has a preferable applying foreground for landslide hazard assessment.
会议录	2008 INTERNATIONAL WORKSHOP ON EDUCATION TECHNOLOGY AND TRAINING AND 2008 INTERNATIONAL WORKSHOP ON GEOSCIENCE AND REMOTE SENSING, VOL 1, PROCEEDINGS
会议录出版地	LOS ALAMITOS
学科主题	Computer Science ; Education & Educational Research ; Remote Sensing
语种	英语
WOS记录号	WOS:000269688700038
内容类型	会议论文
源URL	[http://ir.lzu.edu.cn/handle/262010/184099]
专题	土木工程与力学学院_会议论文
通讯作者	Liang, SY (reprint author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ, Lanzhou 730000, Peoples R China.
推荐引用方式 GB/T 7714	Liang, SY,Yang, XM,Liang, SY . Landslide Hazard Assessment Based on GIS A Case Study of a Hydropower Station Area in China[C]. 见:. Shanghai, PEOPLES R CHINA. DEC 21-22, 2008.