globalchange  > 过去全球变化的重建
DOI: 10.1016/j.scitotenv.2019.01.339
WOS记录号: WOS:000459858500031
论文题名:
Climate background, relative rate, and runoff effect of multiphase water transformation in Qilian Mountains, the third pole region
作者: Li, Zongxing1; Yuan, Ruifeng1; Feng, Qi1; Zhang, Baijuan1; Lv, Yueming1; Li, Yongge1; Wei, Wei3; Chen, Wen2; Ning, Tingting1; Gui, Juan1; Shi, Yang1
通讯作者: Li, Zongxing ; Feng, Qi
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
ISSN: 0048-9697
EISSN: 1879-1026
出版年: 2019
卷: 663, 页码:315-328
语种: 英语
英文关键词: Multiphase water transformation ; Climate warming ; Cryosphere ; Runoff effect ; Qilian Mountains
WOS关键词: RIVER-BASIN ; REANALYSIS ; CRYOSPHERE ; MELTWATER ; GLACIERS ; CHINA
WOS学科分类: Environmental Sciences
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Multiphase water transformation has great effects on alpine hydrology, but these effects remain unclear in the third pole region. Taking the Qilian Mountains as an example, the climate background and relative rates of multiphase water transformation were analyzed, and the runoff effect was evaluated based on long-term field observations. There are three climatic aspects driving multiphase water transformation, including lengthening ablation period, accelerative warming after 1990, and larger warming in the cryosphere belt than in the vegetation belt. The accelerative multiphase water transformation was quantified by three facts: the glacier area retreat rate accelerated by 50% after 1990, the percentage of snowfall in precipitation decreased by 7% after 1990, and the contribution from recycling moisture to precipitation increased by 60% from 1961-1990 to 1991-2016. Under the multiphase water transformation, the outlet runoff for three inland rivers increased by 5 x 10(8) m(3)/10 a after 1990. This runoff increase was concentrated mainly in the ablation period. For the seasonal runoff pattern, maximum runoff lagged maximum precipitation by one month under increasing glacier snow meltwater and thickening permafrost active layer. Meltwater from the cryosphere is a crucial runoff component in the Qilian Mountains. At present, these multiphase water transformations are accelerating, along with the yearly runoff increase, which will obviously have a profound impact on water resources management and flood control in the third pole region. (C) 2019 Elsevier B.V. All rights reserved.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/137960
Appears in Collections:过去全球变化的重建

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作者单位: 1.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Gansu Qilian Mountains Ecoenvironm Res Ctr, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
2.Gansu Prov Hydrog Resources Bur, Lanzhou 730000, Gansu, Peoples R China
3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China

Recommended Citation:
Li, Zongxing,Yuan, Ruifeng,Feng, Qi,et al. Climate background, relative rate, and runoff effect of multiphase water transformation in Qilian Mountains, the third pole region[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019-01-01,663:315-328
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