The distribution law and coupling factors of debris flows in the G318 Linzhi-Lhasa section of the Sichuan-Tibet traffic corridor
文献类型:期刊论文
作者 | He, Na5,6; Song, Yabing4,5; Hu, Guisheng6; Yang, Zhiquan1,2,3; Fu, Qixuan5; Gurkalo, Filip5 |
刊名 | FRONTIERS IN ECOLOGY AND EVOLUTION |
出版日期 | 2023-05-15 |
卷号 | 11页码:12 |
ISSN号 | 2296-701X |
关键词 | debris flow distribution law coupling factors debris flow density fault density |
DOI | 10.3389/fevo.2023.1166239 |
英文摘要 | In recent years, debris flow disasters have occurred frequently along the highway, causing river blockages and road interruptions, which seriously threaten the safety of people's lives and property. Highway G318 is an important throat project linking Sichuan and Tibet; at the same time, it is an important channel for the economic development of Sichuan and Tibet and the transportation of national defense materials. Taking the Linzhi-Lhasa Section of Highway G318 as an example, this study analyses the distribution law and characteristics of coupling factors of debris flows in the study area (under its topographical, hydrometeorological, geological, and structural conditions) using remote sensing interpretation, field surveys, and mathematical statistics. The research shows that: (1) The types and quantity of debris flows in the region show statistical laws under the factors of the slope, slope aspect, drainage area, and gradient of the gully. The vegetation coverage in the upper reaches of the Nyang River valley gradually decreases, and the average debris flow disaster density is 0.529/km, which is the most densely distributed area of debris flow. (2) The distribution density of regional debris flows in narrow valleys is greater than that in wide valleys, and those in the Nyang River basin are greater than those in the Lhasa River basin. (3) By comparing the tectonic geological map and the debris flow distribution map, it was found that the debris flow distribution is controlled by faults, and 71% of the debris flow basins have faults. (4) There is a significant positive correlation between the gradient of the material source area and the gradient of the debris flow gully, as well as a close positive correlation between the rainfall and the fault density, and a close negative correlation between the average gradient and the drainage area. Due to the unique topography and geomorphology of different regions, a difference in meteorology and hydrology occurred. This further affected the topography, geomorphology, and distribution of debris flow disasters. Based on the study of the distribution law of regional debris flow and geological environmental factors, this study provides strong support for regional debris flow prevention and related research. |
WOS关键词 | HIGHWAY |
资助项目 | Second Comprehensive Scientific Investigation of Qinghai-Tibet Plateau[2019QZKK0902] ; International (Regional) Cooperation and Exchange Project of National Natural Science Foundation of China: Occurrence Mechanism and Risk Control of Multi-scale Landslide and Debris Flow Disaster Chain[41861134008] ; Project of Youth Innovation Promotion Association of Chinese Academy of Sciences[2020367] ; Muhammad Asif Khan academician workstation of Yunnan Province[202105AF150076] ; Key R&D Program of Yunnan Province[202003AC100002] |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | FRONTIERS MEDIA SA |
WOS记录号 | WOS:001001017700001 |
资助机构 | Second Comprehensive Scientific Investigation of Qinghai-Tibet Plateau ; International (Regional) Cooperation and Exchange Project of National Natural Science Foundation of China: Occurrence Mechanism and Risk Control of Multi-scale Landslide and Debris Flow Disaster Chain ; Project of Youth Innovation Promotion Association of Chinese Academy of Sciences ; Muhammad Asif Khan academician workstation of Yunnan Province ; Key R&D Program of Yunnan Province |
源URL | [http://ir.imde.ac.cn/handle/131551/57429] |
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 | Hu, Guisheng; Yang, Zhiquan |
作者单位 | 1.Kunming Univ Sci & Technol, Key Lab Early Rapid Identificat Prevent & Control, Kunming, Yunnan, Peoples R China 2.Kunming Univ Sci & Technol, Key Lab Geol Disaster Risk Prevent & Control & Eme, Minist Emergency Management Peoples Republ China, Kunming, Yunnan, Peoples R China 3.Kunming Univ Sci & Technol, Fac Publ Safety & Emergency Management, Kunming, Yunnan, Peoples R China 4.China Jikan Res Inst Engn Invest & Design Co Ltd, Xian, Peoples R China 5.Henan Polytech Univ, Sch Civil Engn, Jiaozuo, Henan, Peoples R China 6.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China |
推荐引用方式 GB/T 7714 | He, Na,Song, Yabing,Hu, Guisheng,et al. The distribution law and coupling factors of debris flows in the G318 Linzhi-Lhasa section of the Sichuan-Tibet traffic corridor[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2023,11:12. |
APA | He, Na,Song, Yabing,Hu, Guisheng,Yang, Zhiquan,Fu, Qixuan,&Gurkalo, Filip.(2023).The distribution law and coupling factors of debris flows in the G318 Linzhi-Lhasa section of the Sichuan-Tibet traffic corridor.FRONTIERS IN ECOLOGY AND EVOLUTION,11,12. |
MLA | He, Na,et al."The distribution law and coupling factors of debris flows in the G318 Linzhi-Lhasa section of the Sichuan-Tibet traffic corridor".FRONTIERS IN ECOLOGY AND EVOLUTION 11(2023):12. |
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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