气候变化领域集成服务门户(CCPortal): Contribution from frozen soil meltwater to runoff in an in-land river basin under water scarcity by isotopic tracing in northwestern China

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DOI	10.1016/j.gloplacha.2015.12.002
	Contribution from frozen soil meltwater to runoff in an in-land river basin under water scarcity by isotopic tracing in northwestern China
	Li Zongxing; Feng Qi; Wang, Q. J.; Yong Song; Cheng Aifang; Li Jianguo
发表日期	2016
ISSN	0921-8181
EISSN	1872-6364
卷号	136
英文摘要	Cryosphere meltwater has been recognized as an important source of local water resources. However, there are few assessments on the contribution from frozen soil meltwater. In this study, we quantify the fraction from frozen soil meltwater and glacier snow meltwater to runoff in Shiyang River, an in-land river basin of northwestern China, where glaciers were disappearing and frozen soil was in degradation. A large number of samples for precipitation, surface water, groundwater, frozen soil meltwater and glacier snow meltwater have been collected and analyzed for their isotopic compositions. Results indicated that runoff was mainly generated from the cryosphere belt, and it was found that frozen soil meltwater was responsible for 20%, on average, of the outlet river water during flood season in the basin. The contribution rates from frozen soil meltwater to the outlet river runoff changed among the seven sub-basins. The results confirmed that frozen soil meltwater has played an important role in runoff of in-land river basins, and evaluating its influence on the hydrological process under a climate warming scenario is of great significance. (C) 2015 Elsevier B.V. All rights reserved.
关键词	Cryosphere Glacier Frozen soil Hydrograph separation Shiyang River
学科领域	Physical Geography; Geology
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
来源期刊	GLOBAL AND PLANETARY CHANGE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111890
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Gansu Hydrol & Water Resources Engn Res Ctr, Key Lab Ecohydrol In Land River Basin, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li Zongxing,Feng Qi,Wang, Q. J.,et al. Contribution from frozen soil meltwater to runoff in an in-land river basin under water scarcity by isotopic tracing in northwestern China[J]. 中国科学院西北生态环境资源研究院,2016,136.
APA	Li Zongxing,Feng Qi,Wang, Q. J.,Yong Song,Cheng Aifang,&Li Jianguo.(2016).Contribution from frozen soil meltwater to runoff in an in-land river basin under water scarcity by isotopic tracing in northwestern China.GLOBAL AND PLANETARY CHANGE,136.
MLA	Li Zongxing,et al."Contribution from frozen soil meltwater to runoff in an in-land river basin under water scarcity by isotopic tracing in northwestern China".GLOBAL AND PLANETARY CHANGE 136(2016).