气候变化领域集成服务门户(CCPortal): Influence of Climate Warming on the Ground Surface Stability over Permafrost along the Qinghai-Tibet Engineering Corridor

CCPortal

DOI	10.3390/su152316412
	Influence of Climate Warming on the Ground Surface Stability over Permafrost along the Qinghai-Tibet Engineering Corridor
	Zhao, Tao; Wang, Chong; Wang, Jiachen
发表日期	2023
EISSN	2071-1050
卷号	15 期号:23
英文摘要	The warming climate has posed a serious threat on ground surface stability. In permafrost regions, ground surface instability may induce engineering and geological disasters, especially for the engineering corridor. It is difficult to evaluate ground surface stability over permafrost because the stability is influenced by various factors in permafrost regions. Many single index models cannot comprehensively evaluate the ground surface stability for permafrost. We, therefore, proposed an evaluation model considering different influential factors based on the trapezoidal fuzzy Analytical Hierarchy Process (AHP) method. And the ground surface stability was calculated and analyzed along the Qinghai-Tibet Engineering Corridor under three climate warming conditions (the slow climate warming, the medium climate warming and the rapid climate warming). The results show that the ground surface stability influential factors, including the mean annual ground temperature, the active layer thickness, and the volume ice content, will be greatly changed with the warming climate. By 2100, the percentage of high-temperature permafrost (-0.5 degrees C < T <= 0 degrees C) will increase about 29.45% with rapid climate warming. The active layer thickness will have an average thickening rate of about 0.030 m/year. Most of the high ice content permafrost will change to low ice content permafrost. The ground surface stability, therefore, will be greatly changed with the warming climate along the Qinghai-Tibet Engineering Corridor. Compared to the present, the stable area will decrease about 5.28% by 2050 under the slow climate warming. And that is approximately 7.91% and 21.78% under the medium and rapid climate warming, respectively. While in year 2100, the decrement is obviously increased. The stable area will decrease about 11.22% under the slow climate warming and about 17.3% under the medium climate warming. The proportion of stable area, however, has an increasing trend under the rapid climate warming. This phenomenon is mainly caused by the warming climate which can lead to the permafrost being degraded to melting soil. The unstable area is mainly distributed near the Chumaer River high plain, Tuotuohe-Yanshiping, Wudaoliang, Tangula Mountains, and other high-temperature permafrost areas. This paper provides a reference for geological hazard prevention and engineering construction along the Qinghai-Tibet Engineering Corridor.
关键词	permafrost Qinghai-Tibet engineering corridor climate warming ground surface stability influential factors
英文关键词	DEFORMATION; EMBANKMENTS; SOIL
WOS研究方向	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS记录号	WOS:001117699500001
来源期刊	SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282712
作者单位	Lanzhou Jiaotong University; Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Zhao, Tao,Wang, Chong,Wang, Jiachen. Influence of Climate Warming on the Ground Surface Stability over Permafrost along the Qinghai-Tibet Engineering Corridor[J],2023,15(23).
APA	Zhao, Tao,Wang, Chong,&Wang, Jiachen.(2023).Influence of Climate Warming on the Ground Surface Stability over Permafrost along the Qinghai-Tibet Engineering Corridor.SUSTAINABILITY,15(23).
MLA	Zhao, Tao,et al."Influence of Climate Warming on the Ground Surface Stability over Permafrost along the Qinghai-Tibet Engineering Corridor".SUSTAINABILITY 15.23(2023).