干旱区生态环境知识资源中心(Arid): Glacial Change and Its Hydrological Response in Three Inland River Basins in the Qilian Mountains, Western China

Arid

DOI	10.3390/w13162213
	Glacial Change and Its Hydrological Response in Three Inland River Basins in the Qilian Mountains, Western China
	Liu, Guohua; Chen, Rensheng; Li, Kailu
通讯作者	Chen, RS (corresponding author), Chinese Acad Sci, Qilian Alpine Ecol & Hydrol Res Stn, Northwest Inst Eco Environm & Resources, Lanzhou 730000, Peoples R China. ; Chen, RS (corresponding author), Northwest Univ, Coll Urban & Environm Sci, Xian 710000, Peoples R China.
来源期刊	WATER
EISSN	2073-4441
出版年	2021
卷号	13 期号:16
英文摘要	Glacial changes have great effects on regional water security because they are an important component of glacierized basin runoff. However, these impacts have not yet been integrated and evaluated in the arid/semiarid inland river basins of western China. Based on the degree-day glacier model, glacier changes and their hydrologic effects were studied in 12 subbasins in the Shiyang River basin (SYRB), Heihe River basin (HHRB) and Shule River basin (SLRB). The results showed that the glacier area of each subbasin decreased by 16.7-61.7% from 1965 to 2020. By the end of this century, the glacier areas in the three basins will be reduced by 64.4%, 72.0% and 83.4% under the three climate scenarios, and subbasin glaciers will disappear completely after the 2070s even under RCP2.6. Glacial runoff in all subbasins showed a decreasing-increasing-decreasing trend, with peak runoff experienced in 11 subbasins during 1965 similar to 2020. The contribution of glacial meltwater to total runoff in the basin ranged from 1.3% to 46.8% in the past, and it will decrease in the future due to increasing precipitation and decreasing glacial meltwater. However, the scale differences in glacier runoff are significant when aggregated over the region/basin/subbasin. This suggests that the results of large-scale generalization may be misleading for subbasin glacier water resource evaluations. Therefore, the hydrological effects of glaciers should be studied more in subbasins to provide an accurate reference for practical water resource management.
英文关键词	glacier change modelling glacier runoff contribution scale differences
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000690026400001
WOS关键词	CLIMATE-CHANGE ; RUNOFF ; MASS ; MELT ; SNOW ; INVENTORY
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368551
作者单位	[Liu, Guohua; Chen, Rensheng; Li, Kailu] Chinese Acad Sci, Qilian Alpine Ecol & Hydrol Res Stn, Northwest Inst Eco Environm & Resources, Lanzhou 730000, Peoples R China; [Liu, Guohua; Li, Kailu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Chen, Rensheng] Northwest Univ, Coll Urban & Environm Sci, Xian 710000, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guohua,Chen, Rensheng,Li, Kailu. Glacial Change and Its Hydrological Response in Three Inland River Basins in the Qilian Mountains, Western China[J],2021,13(16).
APA	Liu, Guohua,Chen, Rensheng,&Li, Kailu.(2021).Glacial Change and Its Hydrological Response in Three Inland River Basins in the Qilian Mountains, Western China.WATER,13(16).
MLA	Liu, Guohua,et al."Glacial Change and Its Hydrological Response in Three Inland River Basins in the Qilian Mountains, Western China".WATER 13.16(2021).