Landslide distribution and size versus relative relief (Shaanxi Province, China)

doi:10.1007/s10064-017-1121-5

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 > 山地灾害与地表过程重点实验室

	Landslide distribution and size versus relative relief (Shaanxi Province, China)
	Haijun Qiu 1,2,3; Peng Cui 3; Amar Deep Regmi 3; Sheng Hu 1; Yuzhu Zhang 1; Yi He 1; Cui, Peng
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2018
卷号	77 期号:4 页码:1331-1342
关键词	Landslides size and size distribution Satellite imagery GIS Relative relief Rollover effect China
ISSN号	1435-9529
DOI	10.1007/s10064-017-1121-5
产权排序	3
英文摘要	The present study aims to investigate the distribution and size of landslides in relation to relative relief. For this, a landslide inventory map of the area was developed from the interpretation of satellite images and detailed field survey. From this we could map331 landslides in Ningqing County (Shaanxi Province). By using GIS and statistical approaches, we studied the coupling between landslide size distribution and relative relief. From this the control of relative relief on the rollover effect of the size distribution of landslides is obtained. The result shows that the landslide frequency-relative relief distribution is unimodal, with majority of landslides occurring in areas with relative reliefs in between 300 and 400. The relative number density of landslides decreased with the increase in the relative relief; on the contrary, the average area, average length and average width of landslide increased with the increase in relative relief. The percentage of large-scale landslide increased with the increase of relative relief or vice versa. In addition, the cumulative frequency-area distributions of these landslides empirically agree well with a power-law relation with an exponent of 1.776 above a certain size threshold. Below this value, it exhibited an obvious rollover effect. Further analysis has shown that landslide cumulative frequency-area curve is strongly influenced by relative relief. The rollover effect is more obvious with the increase of relative relief. The exponent of power law correlation gradually increased from 0.993 to 1.872 with increasing relative relief.
电子版国际标准刊号	1435-9537
语种	英语
WOS记录号	WOS:000448255600004
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/24219]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	Haijun Qiu
作者单位	1.College of Urban and Environmental Science, Northwest University, Xi’an 710127, China; 2.Institute of Earth Surface System and Hazards, Northwest University, Xi’an 710127, China; 3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China
推荐引用方式 GB/T 7714	Haijun Qiu,Peng Cui,Amar Deep Regmi,et al. Landslide distribution and size versus relative relief (Shaanxi Province, China)[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2018,77(4):1331-1342.
APA	Haijun Qiu.,Peng Cui.,Amar Deep Regmi.,Sheng Hu.,Yuzhu Zhang.,...&Cui, Peng.(2018).Landslide distribution and size versus relative relief (Shaanxi Province, China).BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,77(4),1331-1342.
MLA	Haijun Qiu,et al."Landslide distribution and size versus relative relief (Shaanxi Province, China)".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 77.4(2018):1331-1342.