气候变化领域集成服务门户(CCPortal): Response of hydrological processes to permafrost degradation from 1980 to 2009 in the Upper Yellow River Basin, China

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DOI	10.2166/nh.2016.096
	Response of hydrological processes to permafrost degradation from 1980 to 2009 in the Upper Yellow River Basin, China
	Niu, Li; Ye, Baisheng; Ding, Yongjian; Li, Ling; Zhang, Yinsheng; Sheng, Yu; Yue, Guangyang
通讯作者	Niu, L (通讯作者)
发表日期	2016
ISSN	0029-1277
EISSN	2224-7955
起始页码	1014
结束页码	1024
卷号	47 期号:5
英文摘要	Watersheds in cold regions are undergoing climate warming and permafrost degradation, which result in quantitative shifts in surface water groundwater interaction. Daily discharge, annual maximum frozen depth (AMFD) of seasonal frozen soil, precipitation and negative degree-day temperature were analyzed to explore changes and correlations of climate, runoff and permafrost in the Upper Yellow River Basin from 1980 to 2009. Plausible permafrost degradation trends were found at two of the stations, but an unsubstantiated trend was found at Huangheyan Station. The winter recession processes slowed down gradually from 1980 to 2009 at three stations but had little relation to AMFD. Meanwhile, the ratio of monthly maximum to minimum discharge reduced significantly. It is clear that permafrost degradation and runoff variations have already occurred in the basin, particularly in zones where the permafrost coverage is above 40%. It is proposed that the variations in the hydrological regimes were caused by permafrost degradation which enlarged infiltration and sub-surface water contribution to winter discharge. The differences of changes in runoff generation and confluence in various regions were thought to be affected by different permafrost coverage and changes because the exchange of groundwater and surface-water mediated by permafrost.
关键词	CLIMATE-CHANGE SOURCE REGION WATER CYCLE RUNOFF IMPACTS STREAMFLOW CATCHMENT
英文关键词	China; climate warming; hydrological processes; permafrost; response; Upper Yellow River Basin
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000385992900008
来源期刊	HYDROLOGY RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258638
推荐引用方式 GB/T 7714	Niu, Li,Ye, Baisheng,Ding, Yongjian,et al. Response of hydrological processes to permafrost degradation from 1980 to 2009 in the Upper Yellow River Basin, China[J]. 中国科学院青藏高原研究所,2016,47(5).
APA	Niu, Li.,Ye, Baisheng.,Ding, Yongjian.,Li, Ling.,Zhang, Yinsheng.,...&Yue, Guangyang.(2016).Response of hydrological processes to permafrost degradation from 1980 to 2009 in the Upper Yellow River Basin, China.HYDROLOGY RESEARCH,47(5).
MLA	Niu, Li,et al."Response of hydrological processes to permafrost degradation from 1980 to 2009 in the Upper Yellow River Basin, China".HYDROLOGY RESEARCH 47.5(2016).