Spatial Pattern and Response of Landslide and Debris Flow Risks in China-Pakistan Economic Corridor

Authors

Qiang ZOU, 1. Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2. CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China; 3. China-Pakistan Joint Research Center on Earth Sciences, Chinese Academy of Sciences-Higher Education Commission of Pakistan, Islamabad 45320, PakistanFollow
Xiaojun GUO, Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
Yu LUO, Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
Yuanjun JIANG, Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
Peng CUI, 1. Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2. CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China; 3. China-Pakistan Joint Research Center on Earth Sciences, Chinese Academy of Sciences-Higher Education Commission of Pakistan, Islamabad 45320, Pakistan; 4. University of Chinese Academy of Sciences, Beijing 100049, China
Lijun SU, 1. Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2. CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing 100101, China; 3. China-Pakistan Joint Research Center on Earth Sciences, Chinese Academy of Sciences-Higher Education Commission of Pakistan, Islamabad 45320, Pakistan; 4. University of Chinese Academy of Sciences, Beijing 100049, ChinaFollow
Guoqiang OU, Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
Huali PAN, Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
Weiming LIU, 1. Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 3. China-Pakistan Joint Research Center on Earth Sciences, Chinese Academy of Sciences-Higher Education Commission of Pakistan, Islamabad 45320, Pakistan;

Keywords

China-Pakistan Economic Corridor, landslide, debris flow, spatial pattern, risk assessment, development trend, disaster mitigation countermeasures, Belt and Road Initiative

Document Type

Challenge and Countermeasure for Promoting Green Belt and Road

Abstract

Landslides and debris flows caused significant threat to the China-Pakistan Economic Corridor. This study introduced the spatial pattern of the relevant mountainous hazards and assessed the hazards risks, predicted the development trends, and proposed the relevant countermeasures as well. 584 landslides, 116 collapses, and 1669 mudslides in total were identified, which mainly distributed in the mountainous areas in the northern part of the corridor. The hazards were divided into five grades: extremely high, high, medium, low, and extremely low and the northern area is highly dangerous. The vulnerability assessment was carried out with traffic, economy, and population as indicators, and then the risk assessment results were comprehensively obtained. In general, the risk is higher in the northern part and lower in the southeast. In the future, as the intensity of earthquakes increases, the area of high-susceptibility landslides will gradually increase from 0.01% to 1.4% of the studied area, and these hazards are mainly distributed between the northern segment of Aikenert fault and Kazitaert fault, the northern segment of Miya fault and the central region of Bulunkou fault. According to the trend that rainfall and temperature increase, the susceptibility of debris flows in most river basins has increased. It is recommended to strengthen basic data collection and detailed investigation of key disaster points, and carry out early risk assessment and monitoring and early warning, while formulating emergency plans, which serves the safe construction of major projects along the Belt and Road.

First page

160

Last Page

169

Language

Chinese

Publisher

Bulletin of Chinese Academy of Sciences

References

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Recommended Citation

ZOU, Qiang; GUO, Xiaojun; LUO, Yu; JIANG, Yuanjun; CUI, Peng; SU, Lijun; OU, Guoqiang; PAN, Huali; and LIU, Weiming (2021) "Spatial Pattern and Response of Landslide and Debris Flow Risks in China-Pakistan Economic Corridor," Bulletin of Chinese Academy of Sciences (Chinese Version): Vol. 36 : Iss. 2 , Article 6.
DOI: https://doi.org/10.16418/j.issn.1000-3045.20210129102
Available at: https://bulletinofcas.researchcommons.org/journal/vol36/iss2/6