中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Characterizing the spatial distribution and fundamental controls of landslides in the three gorges reservoir area, China

文献类型:期刊论文

作者Li Songlin1; Xu Qiang1; Tang Minggao1; Iqbal Javed2,3; Liu Jie1; Zhu Xing1; Liu Fangzhou4; Zhu Dongxue1
刊名BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
出版日期2019
卷号78期号:6页码:4275-4290
ISSN号1435-9529
关键词Landslides Three gorges reservoir area Lithology Structure Water level fluctuation
DOI10.1007/s10064-018-1404-5
通讯作者Li, Songlin(lsl68@foxmail.com)
产权排序3
文献子类Article
英文摘要A 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.
电子版国际标准刊号1435-9537
WOS关键词SUPPORT VECTOR MACHINE ; LOGISTIC-REGRESSION ; SLOPE STABILITY ; DAM-RESERVOIR ; DECISION TREE ; SUSCEPTIBILITY ; DEFORMATION ; MECHANISM ; RIVER ; HAZARD
资助项目Geological Hazard Prevention Project of Three Gorges[000121 2015C C60 005] ; National Basic Research Program of China[2013CB733202] ; National Basic Research Program of China[2013CB733206] ; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection[SKLGP2015Z008]
WOS研究方向Engineering ; Geology
语种英语
出版者SPRINGER HEIDELBERG
WOS记录号WOS:000482240400029
资助机构Geological Hazard Prevention Project of Three Gorges ; National Basic Research Program of China ; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection
源URL[http://ir.imde.ac.cn/handle/131551/26958]  
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Li Songlin
作者单位1.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
推荐引用方式
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.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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