Quantifying the contribution of climate and underlying surface changes to alpine runoff alterations associated with glacier melting

doi:10.1002/hyp.14069

	Quantifying the contribution of climate and underlying surface changes to alpine runoff alterations associated with glacier melting
	Xin, Jiali 2; Sun, Xiaoyu 2; Liu, Liu 2,3; Li, Hao 2; Liu, Xingcai 4; Li, Xiuping 5; Cheng, Lei 1,6,7; Xu, Zongxue 8,9
刊名	HYDROLOGICAL PROCESSES
	2021-03-01
卷号	35 期号:3 页码:26
关键词	Budyko climate change glacier permafrost Qinghai– Tibet Plateau runoff
ISSN号	0885-6087
DOI	10.1002/hyp.14069
通讯作者	Liu, Liu(liuliu@cau.edu.cn)
英文摘要	Climate variability and underlying surface changes are strongly associated with runoff alterations. The Yarlung Zangbo River Basin (YZRB) is a typical alpine region located in the southeast Qinghai-Tibet Plateau, where runoff is particularly sensitive and vulnerable to climate and environmental changes. Here, we conducted a quantitative assessment of the contributions of climate variability and underlying surface changes to runoff alterations from 1966 to 2015 in the upper, middle, and lower regions of the YZRB. The year 1997 was identified as the runoff breakpoint in all three sub-regions, which divided the runoff time series into the baseline period (1966-1997) and change period (1998-2015). An adjusted Budyko framework accounting for glacier runoff was developed to conduct a runoff alteration attribution analysis. The results indicated that the increase in runoff in the upper region was dominated by changes in the underlying surface and glacier runoff, whose contribution accounted for 59.61 and 49.18%, respectively. The runoff increase in the middle and lower regions was mainly attributed to the increase in precipitation, accounting for 39.36 and 129.21% of the total runoff alteration, respectively. Moreover, due to the little variation in vegetation and degradation of permafrost in the upper region, increases in runoff might be largely attributed to increases in subsurface runoff caused by the melting of permafrost. In the middle region, in addition to increased precipitation, vegetation degradation had positive effects on runoff increases. The lower region exhibited far higher water consumption rates due to its extensive and dense vegetation coverage accompanied by rising temperature, which resulted in a negative contribution (-58.74%) to runoff alteration. Our findings may therefore have important implications for water resource security and sustainable development in alpine regions.
资助项目	National Natural Science Foundation of China[51961145104] ; National Natural Science Foundation of China[91647202] ; National Natural Science Foundation of China[41890822] ; National Training Program of Innovation and Entrepreneurship for Undergraduates[202010019052]
WOS研究方向	Water Resources
语种	英语
出版者	WILEY
WOS记录号	WOS:000636346700035
资助机构	National Natural Science Foundation of China ; National Training Program of Innovation and Entrepreneurship for Undergraduates
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161850]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Liu
作者单位	1.Wuhan Univ, Hubei Prov Key Lab Water Syst Sci Sponge City Con, Wuhan, Peoples R China 2.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China 3.China Agr Univ, Ctr Agr Water Res China, Beijing, Peoples R China 4.Chinese Acad China, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 5.Chinese Acad China, Inst Tibetan Plateau Res, Beijing, Peoples R China 6.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Peoples R China 7.Hubei Prov Collaborat Innovat Ctr Water Resources, Wuhan, Peoples R China 8.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China 9.Beijing Key Lab Urban Hydrol Cycle & Sponge City, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xin, Jiali,Sun, Xiaoyu,Liu, Liu,et al. Quantifying the contribution of climate and underlying surface changes to alpine runoff alterations associated with glacier melting[J]. HYDROLOGICAL PROCESSES,2021,35(3):26.
APA	Xin, Jiali.,Sun, Xiaoyu.,Liu, Liu.,Li, Hao.,Liu, Xingcai.,...&Xu, Zongxue.(2021).Quantifying the contribution of climate and underlying surface changes to alpine runoff alterations associated with glacier melting.HYDROLOGICAL PROCESSES,35(3),26.
MLA	Xin, Jiali,et al."Quantifying the contribution of climate and underlying surface changes to alpine runoff alterations associated with glacier melting".HYDROLOGICAL PROCESSES 35.3(2021):26.