干旱区生态环境知识资源中心(Arid): Aridity Changes and Related Climatic Drivers in the Drylands of China during 1960-2019

Arid

DOI	10.1175/JAMC-D-20-0209.1
	Aridity Changes and Related Climatic Drivers in the Drylands of China during 1960-2019
	Xu, Jinqin; Zeng, Yan; Qiu, Xinfa; He, Yongjian; Shi, Guoping; Zhu, Xiaochen
通讯作者	Qiu, XF (corresponding author), Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Nanjing, Peoples R China.
来源期刊	JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
ISSN	1558-8424
EISSN	1558-8432
出版年	2021
卷号	60 期号:4 页码:607-617
英文摘要	Drylands cover about one-half of the land surface in China and are highly sensitive to climate change. Understanding climate change and its impact drivers on dryland is essential for supporting dryland planning and sustainable development. Using meteorological observations for 1960-2019, the aridity changes in drylands of China were evaluated using aridity index (AI), and the impact of various climatic factors [i.e., precipitation P; sunshine duration (SSD); relative humidity (RH); maximum temperature (Tmax); minimum temperature (Tmin); wind speed (WS)] on the aridity changes was decomposed and quantified. Results of trend analysis based on Sen's slope estimator and Mann-Kendall test indicated that the aridity trends were very weak when averaged over the whole drylands in China during 1960-2019 but exhibited a significant wetting trend in hyperarid and arid regions of drylands. The AI was most sensitive to changes in water factors (i.e., P and RH), followed by SSD, Tmax, and WS, but the sensitivity of AI to Tmin was very small and negligible. Interestingly, the dominant climatic driver to AI change varied in the four dryland subtypes. The significantly increased P dominated the increase in AI in the hyperarid and arid regions. The significantly reduced WS and the significantly increased Tmax contributed more to AI changes than the P in the semiarid and dry subhumid regions of drylands. Previous studies emphasized the impact of precipitation and temperature on the global or regional dry-wet changes; however, the findings of this study suggest that, beyond precipitation and temperature, the impact of wind speed on aridity changes of drylands in China should be given equal attention.
英文关键词	Climate change Climate classification regimes Climate sensitivity Climate variability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000644122400012
WOS关键词	PACIFIC DECADAL OSCILLATION ; INDIAN-OCEAN ; POTENTIAL EVAPOTRANSPIRATION ; METEOROLOGICAL VARIABLES ; SOUTHERN OSCILLATION ; PENMAN-MONTEITH ; NORTHERN CHINA ; RAINFALL ; DROUGHT ; DESERTIFICATION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350663
作者单位	[Xu, Jinqin] Guangdong Meteorol Publ Serv Ctr, Guangzhou, Peoples R China; [Xu, Jinqin; Qiu, Xinfa; Zhu, Xiaochen] Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Nanjing, Peoples R China; [Zeng, Yan] China Meteorol Adm, Key Lab Transportat Meteorol, Nanjing, Peoples R China; Jiangsu Inst Meteorol Sci, Nanjing, Peoples R China; [Zeng, Yan] Nanjing Joint Inst Atmospher Sci, Nanjing, Peoples R China; [He, Yongjian; Shi, Guoping] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China; [Zhu, Xiaochen] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA
推荐引用方式 GB/T 7714	Xu, Jinqin,Zeng, Yan,Qiu, Xinfa,et al. Aridity Changes and Related Climatic Drivers in the Drylands of China during 1960-2019[J]. 南京信息工程大学,2021,60(4):607-617.
APA	Xu, Jinqin,Zeng, Yan,Qiu, Xinfa,He, Yongjian,Shi, Guoping,&Zhu, Xiaochen.(2021).Aridity Changes and Related Climatic Drivers in the Drylands of China during 1960-2019.JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY,60(4),607-617.
MLA	Xu, Jinqin,et al."Aridity Changes and Related Climatic Drivers in the Drylands of China during 1960-2019".JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY 60.4(2021):607-617.