干旱区生态环境知识资源中心(Arid): Glacier changes in the Qilian Mountains in the past half-century: Based on the revised First and Second Chinese Glacier Inventory

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	Glacier changes in the Qilian Mountains in the past half-century: Based on the revised First and Second Chinese Glacier Inventory
	Sun Meiping; Liu Shiyin; Yao Xiaojun; Guo Wanqin; Xu Junli
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2018
卷号	28 期号:2 页码:206-220
英文摘要	Glaciers are the most important fresh-water resources in arid and semi-arid regions of western China. According to the Second Chinese Glacier Inventory(SCGI), primarily compiled from Landsat TM/ETM+ images, the Qilian Mountains had 2684 glaciers covering an area of 1597.8170.30 km~2 and an ice volume of ~84.48 km~3 from 2005 to 2010. While most glaciers are small(85.66% are <1.0 km~2), some larger ones(12.74% in the range 1.0-5.0 km~2) cover 42.44% of the total glacier area. The Laohugou Glacier No.12(20.42 km~2) located on the north slope of the Daxue Range is the only glacier >20 km~2 in the Qilian Mountains. Median glacier elevation was 4972.7 m and gradually increased from east to west. Glaciers in the Qilian Mountains are distributed in Gansu and Qinghai provinces, which have 1492 glaciers(760.96 km~2) and 1192 glaciers(836.85 km~2), respectively. The Shule River basin contains the most glaciers in both area and volume. However, the Heihe River, the second largest inland river in China, has the minimum average glacier area. A comparison of glaciers from the SCGI and revised glacier inventory based on topographic maps and aerial photos taken from 1956 to 1983 indicate that all glaciers have receded, which is consistent with other mountain and plateau areas in western China. In the past half-century, the area and volume of glaciers decreased by 420.81 km~2(-20.88%) and 21.63 km~3(-20.26%), respectively. Glaciers with areas <1.0 km~2 decreased the most in number and area recession. Due to glacier shrinkage, glaciers below 4000 m completely disappeared. Glacier changes in the Qilian Mountains presented a clear longitudinal zonality, i.e., the glaciers rapidly shrank in the east but slowly in the central-west. The primary cause of glacier recession was warming temperatures, which was slightly mitigated with increased precipitation.
英文关键词	glacier change glacier inventory glacier volume climate change Qilian Mountains
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:6154269
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335908
作者单位	Sun Meiping, College of Geography and Environment Sciences, Northwest Normal University;;Northwest Institute of Eco-Environment and Resources, CAS, ;;State Key Laboratory of Cryosphere Sciences, Lanzhou;;Lanzhou, ;; 730070;;730000.; Liu Shiyin, Northwest Institute of Eco-Environment and Resources, CAS;;Institute of International Rivers and Eco-Security, Yunnan University, State Key Laboratory of Cryosphere Sciences;;, Lanzhou;;Kunming, ;; 730000;;650091.; Yao Xiaojun, College of Geography and Environment Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China.; Guo Wanqin, Northwest Institute of Eco-Environment and Resources, CAS, State Key Laboratory of Cryosphere Sciences, Lanzhou, Gansu 730000, China.; Xu Junli, Northwest Institute of Eco-Environment and Resources, CAS, State Key Laboratory of Cryosphere Sciences, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Sun Meiping,Liu Shiyin,Yao Xiaojun,et al. Glacier changes in the Qilian Mountains in the past half-century: Based on the revised First and Second Chinese Glacier Inventory[J],2018,28(2):206-220.
APA	Sun Meiping,Liu Shiyin,Yao Xiaojun,Guo Wanqin,&Xu Junli.(2018).Glacier changes in the Qilian Mountains in the past half-century: Based on the revised First and Second Chinese Glacier Inventory.Journal of Geographical Sciences,28(2),206-220.
MLA	Sun Meiping,et al."Glacier changes in the Qilian Mountains in the past half-century: Based on the revised First and Second Chinese Glacier Inventory".Journal of Geographical Sciences 28.2(2018):206-220.