IMHE OpenIR  > 山地灾害与地表过程重点实验室
Characterizing the spatial distribution and fundamental controls of landslides in the three gorges reservoir area, China
Li Songlin1; Xu Qiang1; Tang Minggao1; Iqbal Javed2,3; Liu Jie1; Zhu Xing1; Liu Fangzhou4; Zhu Dongxue1
2019
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
EISSN1435-9537
Volume78Issue:6Pages:4275-4290
SubtypeArticle
Contribution Rank3
AbstractA comprehensive field investigation and analysis of the spatial distribution of landslides was conducted in the Three Gorges Reservoir Area (TGRA) along the Yangtze River and its first-order tributaries. A landslide inventory for this area was prepared using regional-local geological investigations and other available information. The analysis of the extensive inventory data reveals that the occurrence of landslides is mainly affected by four primary factors: (1) Lithology-the highest incidence of landslides is associated with the lithological combination of marl and shale intercalated with mudstone (MSM), and a number of landslides occurred in an area dominated by sandstone and mudstone intercalated with shale and coal seams (SMSC), which cover a major part (approximately 71%) of the bank slopes; (2) Structure-slope structure fundamentally controls the development of the sliding zone and the mechanism of formation of landslides occurring on the same lithological combinations at subregional scales. Landslide concentrations in consequent slopes are approximately 5-17 times greater than those of reverse slopes and diagonal slopes; (3) Topography-landslides are particularly abundant between elevations of 100 m and 600 m. The elevations of the headscarps of the landslides gradually decrease from the head to the tail of the reservoir due to the topography, and almost all of the toes of the landslides are below the highest historical floodwater level. The analysis of the correlation between landslide occurrence and hillslope gradients shows that 50% of all landslides occurred on slopes between 10 degrees and 15 degrees, despite slopes in this range representing only 30% of the total hillslope gradients; and (4) Water level fluctuation and precipitation-the fluctuation of reservoir water level exerts a fundamental effect that controls the occurrence and reactivation of landslides during the period of initial impoundment, whereas the precipitation becomes even more important than water level fluctuation after the first impoundment at 175 m above sea level. In addition, the comprehensive analysis performed in this study provides broad insight into the landslide distribution in the TGRA. This work will improve our understanding of the role of morphological and geological conditions that affect the occurrence of landslides, which may provide useful guidance for regional risk assessment and landslide susceptibility studies.
KeywordLandslides Three gorges reservoir area Lithology Structure Water level fluctuation
DOI10.1007/s10064-018-1404-5
Indexed BySCI
Language英语
WOS IDWOS:000482240400029
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26958
Collection山地灾害与地表过程重点实验室
Corresponding AuthorLi Songlin
Affiliation1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu,China;
2.Department of Earth Sciences, Abbottabad University of Science & Technology, Abbottabad,Pakistan;
3.Institute of Mountain Hazards and EnvironmentChinese Academy of Sciences, Chengdu, China;
4.School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, USA
Recommended Citation
GB/T 7714
Li Songlin,Xu Qiang,Tang Minggao,et al. Characterizing the spatial distribution and fundamental controls of landslides in the three gorges reservoir area, China[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(6):4275-4290.
APA Li Songlin.,Xu Qiang.,Tang Minggao.,Iqbal Javed.,Liu Jie.,...&Zhu Dongxue.(2019).Characterizing the spatial distribution and fundamental controls of landslides in the three gorges reservoir area, China.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(6),4275-4290.
MLA Li Songlin,et al."Characterizing the spatial distribution and fundamental controls of landslides in the three gorges reservoir area, China".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.6(2019):4275-4290.
Files in This Item:
File Name/Size DocType Version Access License
Li2019_Article_Chara(4558KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li Songlin]'s Articles
[Xu Qiang]'s Articles
[Tang Minggao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li Songlin]'s Articles
[Xu Qiang]'s Articles
[Tang Minggao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li Songlin]'s Articles
[Xu Qiang]'s Articles
[Tang Minggao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Li2019_Article_CharacterizingTheSpatialDistri.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.