气候变化领域集成服务门户(CCPortal): Runoff variations affected by climate change and human activities in Yarlung Zangbo River, southeastern Tibetan Plateau

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DOI	10.1016/j.catena.2023.107184
	Runoff variations affected by climate change and human activities in Yarlung Zangbo River, southeastern Tibetan Plateau
	Li, Chaoyue; Hao, Jiansheng; Zhang, Guotao; Fang, Haiyan; Wang, Yan; Lu, Hongjian
发表日期	2023
ISSN	0341-8162
EISSN	1872-6887
卷号	230
英文摘要	The runoff in Tibetan Plateau (TP) is sensitive to environmental changes, and it is thus challenging to assess the variations and influencing factors of runoff in the context of global warming and increased human activities. We addressed this challenge by using the most comprehensive dataset, Budyko hypothesis, and wavelet theory to attribute runoff variations in the Yarlung Zangbo River Basin (YZRB), and its interaction with regional envi-ronmental variables (e.g., precipitation PCP, relative humidity RH, average temperature TMPave, maximum temperature TMPmax, minimum temperature TMPmin, wind speed WS, snow depth SD, potential evapotrans-piration ET0, and normalized difference vegetation index NDVI). The results indicated that, 1) the warming of the YZRB was 0.47, 0.36, and 0.65 degrees C/decade in TMPave, TMPmax, and TMPmin, two to three times the global mean rate, and the increasing trend of precipitation was nonsignificant; 2) ET0 increased significantly by 2.25 mm/decade, and SD decreased rapidly at a rate of 2.54 mm/decade. 3) The streamflow (lower Nuxia) showed a decreasing trend from 1960 to 2015, primarily caused by climate change, which accounted for 78.81%. Human activities contributed 21.19%; 4) Seasonal streamflow increased in Spring and Winter and declined in Summer and Autumn. 5) PCP was the single variable mostly associated with runoff. When PCP-SD and PCP-RH-ET0 were combined, they demonstrated the most robust relationships with runoff, respectively; 6) A modest increase in PCP and accelerating snowmelt may not offset water dissipation due to severe warming. Further research is necessary to improve understanding of the driving mechanisms behind seasonal and inter-annual variability in the runoff and to provide strategies for mitigation and adaptation to environmental change.
关键词	Runoff variations Climate change Human activities Precipitation Yarlung Zangbo River Basin
英文关键词	MULTIPLE-WAVELET COHERENCE; ENERGY BALANCE FRAMEWORKS; KENDALL TREND TEST; LAND-USE; MANN-KENDALL; STREAMFLOW VARIABILITY; LOESS PLATEAU; YELLOW-RIVER; SNOW-DEPTH; CHANGE IMPACTS
WOS研究方向	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:001010440100001
来源期刊	CATENA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283785
作者单位	Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; China Institute of Water Resources & Hydropower Research; Ministry of Water Resources
推荐引用方式 GB/T 7714	Li, Chaoyue,Hao, Jiansheng,Zhang, Guotao,et al. Runoff variations affected by climate change and human activities in Yarlung Zangbo River, southeastern Tibetan Plateau[J],2023,230.
APA	Li, Chaoyue,Hao, Jiansheng,Zhang, Guotao,Fang, Haiyan,Wang, Yan,&Lu, Hongjian.(2023).Runoff variations affected by climate change and human activities in Yarlung Zangbo River, southeastern Tibetan Plateau.CATENA,230.
MLA	Li, Chaoyue,et al."Runoff variations affected by climate change and human activities in Yarlung Zangbo River, southeastern Tibetan Plateau".CATENA 230(2023).