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	Response of low flows under climate warming in high-altitude permafrost regions in western China
	Wang, Xiqiang1,2; Chen, Rensheng1; Liu, Guohua1,2; Han, Chuntan1; Yang, Yong1; Song, Yaoxuan1; Liu, Junfeng1; Liu, Zhangwen1; Liu, Xiaojiao1,2; Guo, Shuhai1,2
刊名	HYDROLOGICAL PROCESSES
	2019
卷号	33期号:1页码:66-75
关键词	alpine cold desert minimum monthly discharge permafrost coverage permafrost degradation western China winter discharge
ISSN号	0885-6087
DOI	10.1002/hyp.13311
通讯作者	Chen, Rensheng(crs2008@lzb.ac.cn)
英文摘要	The increase in low flows (winter discharge and minimum monthly discharge), caused primarily by permafrost degradation, is common in high-latitude permafrost regions, whereas the dynamics of low flows in high-altitude permafrost regions remain largely unknown. Long-term discharge data from 28 unregulated catchments in western China were analysed, and the findings showed that winter discharge/minimum monthly discharge significantly increased (p <= 0.1) in 82/82%, 55/64%, and 0/0% of the catchments in the higher-latitude mountain permafrost regions (Tienshan Mountains), mid-latitude mountain permafrost regions (Qilian Mountains), and mid- to low-latitude plateau permafrost regions (the source regions of the Yangtze and Yellow rivers), respectively. The differences in permafrost type and the distribution of permafrost and alpine cold desert (which is similar to tundra) were found to be the main causes for the different responses in the low flows. The rate of change of low flows (winter discharge and minimum monthly discharge) was negatively and linearly correlated with permafrost coverage when coverage was less than 40% of the catchment area, whereas the low flows changed only slightly when the permafrost coverage exceeded 40%. A significant thickening of the active layer increased the low flows in the lower permafrost-covered catchments, which are dominated by warm permafrost. However, in the higher permafrost-covered catchments with cold permafrost and a cold climate, only an increase in permafrost temperature (without a notable thickening of the active layer) occurred, resulting in non-significant changes in low flows.
收录类别	SCI
WOS关键词	GROUNDWATER-FLOW ; RUNOFF ; DEGRADATION ; HYDROLOGY ; PLATEAU ; FROZEN ; LAKE
WOS研究方向	Water Resources
WOS类目	Water Resources
语种	英语
出版者	WILEY
WOS记录号	WOS:000453677200005
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558233
专题	寒区旱区环境与工程研究所
通讯作者	Chen, Rensheng
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Qilian Alpine Ecol & Hydrol Res Stn, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiqiang,Chen, Rensheng,Liu, Guohua,et al. Response of low flows under climate warming in high-altitude permafrost regions in western China[J]. HYDROLOGICAL PROCESSES,2019,33(1):66-75.
APA	Wang, Xiqiang.,Chen, Rensheng.,Liu, Guohua.,Han, Chuntan.,Yang, Yong.,...&Zheng, Qin.(2019).Response of low flows under climate warming in high-altitude permafrost regions in western China.HYDROLOGICAL PROCESSES,33(1),66-75.
MLA	Wang, Xiqiang,et al."Response of low flows under climate warming in high-altitude permafrost regions in western China".HYDROLOGICAL PROCESSES 33.1(2019):66-75.

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