气候变化领域集成服务门户(CCPortal): Glacial Change and Its Hydrological Response in Three Inland River Basins in the Qilian Mountains, Western China

CCPortal

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 (通讯作者)，Chinese Acad Sci, Qilian Alpine Ecol & Hydrol Res Stn, Northwest Inst Eco Environm & Resources, Lanzhou 730000, Peoples R China. ; Chen, RS (通讯作者)，Northwest Univ, Coll Urban & Environm Sci, Xian 710000, Peoples R China.
发表日期	2021
EISSN	2073-4441
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.
关键词	CLIMATE-CHANGE RUNOFF MASS MELT SNOW INVENTORY
英文关键词	glacier change; modelling; glacier runoff; contribution; scale differences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000690026400001
来源期刊	WATER
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/253801
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]. 中国科学院西北生态环境资源研究院,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).