气候变化领域集成服务门户(CCPortal): Blocking-baffle mechanism of vegetation to rock avalanche on the forested slope of the east Sichuan-Tibet Mountains

CCPortal

DOI	10.1007/s10346-023-02206-4
	Blocking-baffle mechanism of vegetation to rock avalanche on the forested slope of the east Sichuan-Tibet Mountains
	Wu, Yong; Wang, Zhang-qing; Li, Xin-po; He, Siming; Lei, Xiao-qin
发表日期	2024
ISSN	1612-510X
EISSN	1612-5118
英文摘要	The forest could be a protective structure to reduce rock avalanches in the Sichuan-Tibet Mountains. When rocks propagate down a forested slope and hit trees, they are blocked, modified in trajectory, slowed down, and deposited, which weakens their destructive effect directly on the downstream. To better understand the protective effect of forests against rock avalanches, a novel material point method (MPM) introducing two contact models describes the rock avalanches' movement on slope and interaction with trees, respectively. Carry out simulations on an idealized scenario of rock avalanches to conduct extensive parametric studies, which give the shape, volume, thickness, and runup height of rock accumulations, showing how shapes, species, and layout of trees have vital effects on blocking the rock avalanches. Finally, an optimal green protective structure for a vegetation-free slope in a 3D valley is given, and the blocking-baffle mechanism of vegetation to rock avalanches on mountains is illustrated clearly through numerical calculations.
关键词	Blocking-baffle mechanism Forested slope Rock avalanches MPM Sichuan-Tibet Mountains
英文关键词	MATERIAL-POINT METHOD; TREES; PROPAGATION; EARTHQUAKE; CONTACT; MODEL
WOS研究方向	Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号	WOS:001139350900001
来源期刊	LANDSLIDES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282774
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; Institute of Mountain Hazards & Environment, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Wu, Yong,Wang, Zhang-qing,Li, Xin-po,et al. Blocking-baffle mechanism of vegetation to rock avalanche on the forested slope of the east Sichuan-Tibet Mountains[J],2024.
APA	Wu, Yong,Wang, Zhang-qing,Li, Xin-po,He, Siming,&Lei, Xiao-qin.(2024).Blocking-baffle mechanism of vegetation to rock avalanche on the forested slope of the east Sichuan-Tibet Mountains.LANDSLIDES.
MLA	Wu, Yong,et al."Blocking-baffle mechanism of vegetation to rock avalanche on the forested slope of the east Sichuan-Tibet Mountains".LANDSLIDES (2024).