干旱区生态环境知识资源中心(Arid): Change characteristics of precipitation and temperature in the Qilian Mountains and Hexi Oasis, Northwestern China

Arid

DOI	10.1007/s12665-019-8289-x
	Change characteristics of precipitation and temperature in the Qilian Mountains and Hexi Oasis, Northwestern China
	Wang, Lei 1,2; Chen, Rensheng 1; Han, Chuntan 1; Wang, Xiqiang 1,2; Liu, Guohua 1,2; Song, Yaoxuan 1; Yang, Yong 1; Liu, Junfeng 1; Liu, Zhangwen 1; Liu, Xiaojiao 1,2; Guo, Shuhai 1,2; Zheng, Qin 1,2
通讯作者	Wang, Lei
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:9
英文摘要	Precipitation and temperature in the Qilian Mountains and the Hexi oasis are changing with climate change. The characteristics and control factors of these changes are not well understood, affecting the ability to allocate water resources in this area judiciously. We analyzed the annual and seasonal variability in precipitation and temperature during 1960-2016 using monthly data from 25 national meteorological stations in the Qilian Mountains. Results showed that precipitation increased by 6.2, 4.1, and 8.9mm/decade for the whole regions (including oasis and mountains), oasis, and mountains, respectively. Variability in summer precipitation made the greatest contribution to the annual change in precipitation. Moreover, the increment in precipitation was amplified with elevation. Enhanced westerly circulation and increased water vapor were the factors responsible for the increased precipitation in the study area. Temperature in the whole regions, oasis, and mountains increased at the rate of 0.32, 0.32, and 0.33 degrees C/decade, respectively. Changes in temperature were greatest in winter, with 0.47, 0.36 and 0.50 degrees C/decade in the whole regions, oasis, and mountains, respectively; changes in winter temperature made the greatest contribution to the annual temperature changes. Seasonal differences in carbon dioxide concentration may have caused the seasonal differences in the rate of temperature increase. The annual increase in temperature was mainly due to Siberian High, and Arctic Oscillation, carbon emissions and decreased cloud cover in the study area. The study results will help evaluate climatic hazards and contribute to development of water resources management strategies such as supplementary irrigation.
英文关键词	Precipitation and temperature Mann-Kendall Change characteristics Influence factor Mountains Oasis
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000466896400004
WOS关键词	DAILY CLIMATE EXTREMES ; WATER-RESOURCES ; ELEVATION ; IMPACTS ; REGION ; VARIABILITY
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215410
作者单位	1.Chinese Acad Sci, Qilian Alpine Ecol & Hydrol Res Stn, Key Lab Ecohydrol Inland River Basin, Northwest Inst Ecoenvironm & Resources, 320 Donggang West Rd, Lanzhou 730000, Gansu, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lei,Chen, Rensheng,Han, Chuntan,et al. Change characteristics of precipitation and temperature in the Qilian Mountains and Hexi Oasis, Northwestern China[J],2019,78(9).
APA	Wang, Lei.,Chen, Rensheng.,Han, Chuntan.,Wang, Xiqiang.,Liu, Guohua.,...&Zheng, Qin.(2019).Change characteristics of precipitation and temperature in the Qilian Mountains and Hexi Oasis, Northwestern China.ENVIRONMENTAL EARTH SCIENCES,78(9).
MLA	Wang, Lei,et al."Change characteristics of precipitation and temperature in the Qilian Mountains and Hexi Oasis, Northwestern China".ENVIRONMENTAL EARTH SCIENCES 78.9(2019).