干旱区生态环境知识资源中心(Arid): Spatiotemporal changes of the aridity index in Xinjiang over the past 60 years

Arid

DOI	10.1007/s12665-023-11070-3
	Spatiotemporal changes of the aridity index in Xinjiang over the past 60 years
	Wu, Xiulan; Zhang, Cunjie; Dong, Siyan; Hu, Jiahui; Tong, Xinyi; Zheng, Xiannian
通讯作者	Dong, SY
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2023
卷号	82 期号:17
英文摘要	The Aridity Index (AI), calculated from 99 homogeneous meteorological stations from 1961 to 2020, was used to analyze the variation of dryness/wetness climate change in Xinjiang in the past 60 years. The results show that the annual AI in Xinjiang has demonstrated a significant decreasing trend over the past 60 years; that is, the climate in Xinjiang, especially southern Xinjiang, has shown a relatively wetting trend. The interdecadal variations from the 1960s to 2010s explained that the total station ratio of arid and extremely arid areas showed a decreasing trend. In contrast, the semi-arid, humid, and semi-humid areas showed increasing trends, especially since the beginning of the twenty-first century. The interdecadal spatial evolution characteristics show that Xinjiang's dryness/wetness climate reversed in the 1990s. An abrupt change in the annual AI occurred in 1986, after which the study region was continuously wetting. The first empirical orthogonal function (EOF) decomposition mode is consistent in Xinjiang; that is, the climate in Xinjiang is generally dry or wet, and the intensity of this change varies among different regions. The second mode reflects the opposite spatial distribution characteristics of the dryness/wetness climate in southern and northern Xinjiang with the Tianshan Mountains. Dryness/wetness climate changes in Xinjiang mainly exhibit 2.5-year and 6-year oscillation periods, between which the 6-year period is even more significant.
英文关键词	Aridity Index Temporal and spatial variation Climate change Xinjiang
类型	Article
语种	英语
开放获取类型	hybrid, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:001044932100004
WOS关键词	CENTRAL-ASIA ; PRECIPITATION ; TRENDS ; CHINA ; PATTERNS ; DROUGHT
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/2XILL650/396128
推荐引用方式 GB/T 7714	Wu, Xiulan,Zhang, Cunjie,Dong, Siyan,et al. Spatiotemporal changes of the aridity index in Xinjiang over the past 60 years[J],2023,82(17).
APA	Wu, Xiulan,Zhang, Cunjie,Dong, Siyan,Hu, Jiahui,Tong, Xinyi,&Zheng, Xiannian.(2023).Spatiotemporal changes of the aridity index in Xinjiang over the past 60 years.ENVIRONMENTAL EARTH SCIENCES,82(17).
MLA	Wu, Xiulan,et al."Spatiotemporal changes of the aridity index in Xinjiang over the past 60 years".ENVIRONMENTAL EARTH SCIENCES 82.17(2023).