Drought characteristics and its elevation dependence in the Qinghai-Tibet plateau during the last half-century

doi:10.1038/s41598-020-71295-1

	Drought characteristics and its elevation dependence in the Qinghai-Tibet plateau during the last half-century
	Feng, Wei 1,2; Lu, Hongwei 1; Yao, Tianci 1,2; Yu, Qing 1,2
刊名	SCIENTIFIC REPORTS
	2020-08-31
卷号	10 期号:1 页码:11
ISSN号	2045-2322
DOI	10.1038/s41598-020-71295-1
通讯作者	Lu, Hongwei(luhw@igsnrr.ac.cn)
英文摘要	Associated with global warming, drought has destructive influences on agriculture and ecosystems, especially in the fragile Qinghai-Tibet Plateau (QTP). This study investigated spatial-temporal patterns of meteorological drought in the QTP and its surrounding areas and made an attempt to explore the relationship between drought conditions and elevation. Robust monitoring data from 274 meteorological stations during 1970-2017 were analyzed using the Sen's slope method, Mann-Kendall trend test and rescaled range analysis. Results revealed that under the wetting trend in the QTP, Standardized Precipitation Evapotranspiration Index (SPEI) increased of maximum 0.012/year in spring. Moreover, severe drought frequency in winter and future drought risk in summer also showed an increasing trend. Wetter trends were positively correlated with elevation, with a key point being 4,000 m where the change trend above 4,000 m was about 6.3 times of that below 4,000 m in study area. The difference of drought severities between SPEI in the QTP and its surrounding areas has increased from -0.19 in 1970 to 0.38 in 2017 and kept growing in future.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040301] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK1003]
WOS关键词	CLIMATE-CHANGE ; CHINA ; EVAPOTRANSPIRATION ; EVOLUTION ; SEVERITY ; GLACIERS ; MOISTURE ; TRENDS ; YUNNAN ; SPEI
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000570035500070
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156895]
专题	中国科学院地理科学与资源研究所
通讯作者	Lu, Hongwei
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Feng, Wei,Lu, Hongwei,Yao, Tianci,et al. Drought characteristics and its elevation dependence in the Qinghai-Tibet plateau during the last half-century[J]. SCIENTIFIC REPORTS,2020,10(1):11.
APA	Feng, Wei,Lu, Hongwei,Yao, Tianci,&Yu, Qing.(2020).Drought characteristics and its elevation dependence in the Qinghai-Tibet plateau during the last half-century.SCIENTIFIC REPORTS,10(1),11.
MLA	Feng, Wei,et al."Drought characteristics and its elevation dependence in the Qinghai-Tibet plateau during the last half-century".SCIENTIFIC REPORTS 10.1(2020):11.