Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau

doi:10.1016/j.catena.2021.105797

	Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau
	Zhang, Fei 1,2; Hu, Yadan 1,3; Fan, Xuanmei 3; Yu, Wenlong 3; Liu, Xingxing 1,2; Jin, Zhangdong 1,2
刊名	CATENA
	2022-02-01
卷号	209 页码:12
关键词	Suspended sediment yield Seasonal variation Freeze-thaw process Global warming Surface erosion
ISSN号	0341-8162
DOI	10.1016/j.catena.2021.105797
通讯作者	Zhang, Fei(zhangfei@ieecas.cn) ; Hu, Yadan(hyd0903@126.com)
英文摘要	Global warming and intensified climate variability have greatly affected Earth's surface processes and continental sediment evacuation. River suspended sediment is a sensitive indicator for tracing seasonal surface erosion, but details of the rates of sediment generation and evacuation, and their connections with nowadays warming climate are not entirely clear, particularly in Tibet and other high-altitude areas where field observations remain scarce. Here, we investigate daily to seasonal river sediment transport dynamics between the cold, permafrost-dominated northeastern Tibetan Plateau and warm, non-permafrost Sichuan and Taiwan regions. Our results show that at a given river water discharge, greater river suspended sediment was evacuated during the pre-monsoon season (April-Mid June) relative to other seasons in the cold NE Tibetan catchments. In contrast, no such phenomenon was observed in the warm, non-permafrost regions. These comparisons likely indicate a center role of freeze-thaw processes on loose sediment generation, which enhanced sediment output. Hydmmeteorological records show up to similar to 2 degrees C warming in the NE Tibetan Plateau since the past 30 years, coupled with an 8-fold increase in sediment transport. We suggest that continuous warming climate may further accelerate sediment and soil carbon release in the Tibetan Plateau and other global permafrost-dominated areas, which in turn influences climate feedback.
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB 40020502] ; Youth Innovation Promotion Association of CAS[41403111] ; West Light Foundation of CAS[529061299] ; State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection Independent Research Project[SKLGP2019Z002] ; Cultivating Foundation of the State Key Laboratory of Loess and Quaternary Geology[SKLLQG0923] ; National Natural Science Foundation of China[41403111] ; Funds for Creative Research Groups of China[41521002]
WOS关键词	SUSPENDED SEDIMENT ; FREEZE-THAW ; CLIMATE-CHANGE ; GANGOTRI GLACIER ; PERMAFROST DEGRADATION ; GARHWAL HIMALAYA ; LOESS PLATEAU ; YELLOW-RIVER ; CATCHMENT ; TRANSPORT
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000711850200008
资助机构	Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association of CAS ; West Light Foundation of CAS ; State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection Independent Research Project ; Cultivating Foundation of the State Key Laboratory of Loess and Quaternary Geology ; National Natural Science Foundation of China ; Funds for Creative Research Groups of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17172]
专题	地球环境研究所_加速器质谱中心第四纪科学与全球变化卓越创新中心
通讯作者	Zhang, Fei; Hu, Yadan
作者单位	1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 3.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Fei,Hu, Yadan,Fan, Xuanmei,et al. Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau[J]. CATENA,2022,209:12.
APA	Zhang, Fei,Hu, Yadan,Fan, Xuanmei,Yu, Wenlong,Liu, Xingxing,&Jin, Zhangdong.(2022).Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau.CATENA,209,12.
MLA	Zhang, Fei,et al."Controls on seasonal erosion behavior and potential increase in sediment evacuation in the warming Tibetan Plateau".CATENA 209(2022):12.