干旱区生态环境知识资源中心(Arid): Field testing study on the rainfall thresholds and prone areas of sandstone slope erosion at Mogao Grottoes, Dunhuang

Arid

DOI	10.1007/s10661-019-7961-7
	Field testing study on the rainfall thresholds and prone areas of sandstone slope erosion at Mogao Grottoes, Dunhuang
	Liu, Hongli 1,2; Wang, Xudong 1,2; Guo, Qinglin 1
通讯作者	Liu, Hongli
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2019
卷号	191 期号:12
英文摘要	The Dunhuang Mogao Grotto is a famous Buddhist monument and was inscribed in the list of world cultural heritage sites by UNESCO in 1987. Water poses a major threat to the preservation of this heritage even though it is located in an arid region. This study was conducted to investigate the effect of rainfall on rock erosion. Specifically, the formation mechanism of slope runoff and the erosion threshold of rainfall were analyzed, and erosion-prone areas of the site were identified. This was carried out using field artificial rainfall simulation testing, and the results inform methods of preventing rainfall-induced cliff erosion. In addition, the rainfall threshold and erosion-prone areas obtained from the experiment were further validated and optimized using monitoring data for natural rainfall and historic documentation. The threshold value of erosive rainfall obtained by empirical statistical analysis method was found to be similar to that obtained by the runoff generation mechanism. The areas identified as prone to erosion using field tests coincided with areas of historic erosion as recorded in site documentation. Furthermore, the forecast grade of cliff slope erosion and its erosion-prone areas are determined after comprehensive analysis of the results obtained by these two methods. The research results are critical for the monitoring, early warning, and prevention of cliff slope erosion. The research methods can also be used as reference in areas for which rainfall data are missing.
英文关键词	Sandstone slope Rainfall simulation test Runoff yielding Sediment Rainfall threshold Prone areas
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000497765700003
WOS关键词	DEBRIS FLOWS ; INITIATION ; SURFACE ; RUNOFF
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-01
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311213
作者单位	1.Dunhuang Acad, Conservat & Res Inst, Dunhuang 736200, Gansu, Peoples R China; 2.Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hongli,Wang, Xudong,Guo, Qinglin. Field testing study on the rainfall thresholds and prone areas of sandstone slope erosion at Mogao Grottoes, Dunhuang[J]. 兰州大学,2019,191(12).
APA	Liu, Hongli,Wang, Xudong,&Guo, Qinglin.(2019).Field testing study on the rainfall thresholds and prone areas of sandstone slope erosion at Mogao Grottoes, Dunhuang.ENVIRONMENTAL MONITORING AND ASSESSMENT,191(12).
MLA	Liu, Hongli,et al."Field testing study on the rainfall thresholds and prone areas of sandstone slope erosion at Mogao Grottoes, Dunhuang".ENVIRONMENTAL MONITORING AND ASSESSMENT 191.12(2019).