干旱区生态环境知识资源中心(Arid): Shifts in Dry-Wet Climate Regions over China and Its Related Climate Factors between 1960-1989 and 1990-2019

Arid

DOI	10.3390/su14020719
	Shifts in Dry-Wet Climate Regions over China and Its Related Climate Factors between 1960-1989 and 1990-2019
	Xu, Jinqin; Zhu, Xiaochen; Li, Mengxi; Qiu, Xinfa; Wang, Dandan; Xu, Zhenyu
通讯作者	Zhu, XC
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2022
卷号	14 期号:2
英文摘要	The shifts in dry-wet climate regions are a natural response to climate change and have a profound impact on the regional agriculture and ecosystems. In this paper, we divided China into four dry-wet climate regions, i.e., arid, semi-arid, semi-humid, and humid regions, based on the humidity index (HI). A comparison of the two 30-year periods, i.e., 1960-1989 and 1990-2019, revealed that there was a shift in climate type in each dry-wet climate region, with six newly formed transitions, and the total area of the shifts to wetter conditions was more than two times larger than that of the shifts to drier conditions. Interestingly, the shifts to drier types were basically distributed in the monsoon region (east of 100 degrees E) and especially concentrated in the North China Plain where agricultural development relies heavily on irrigation, which would increase the challenges in dealing with water shortage and food production security under a warming climate. The transitions to wetter types were mainly distributed in western China (west of 100 degrees E), and most areas of the Junggar Basin have changed from arid to semi-arid region, which should benefit the local agricultural production and ecological environment to some extent. Based on a contribution analysis method, we further quantified the impacts of each climate factor on HI changes. Our results demonstrated that the dominant factor controlling HI changes in the six newly formed transition regions was P, followed by air temperature (Ta). In the non-transition zones of the arid and semi-arid regions, an increase in P dominated the increase of HI. However, in the non-transition zones of the semi-humid and humid region with a more humid background climate, the thermal factors (e.g., Ta, and net radiation (Rn)) contributed more than or equivalent to the contribution of P to HI change. These findings can provide scientific reference for water resources management and sustainable agricultural development in the context of climate change.
英文关键词	dry-wet climate regions humidity index climate change dominant factor
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000758236900001
WOS关键词	POTENTIAL EVAPOTRANSPIRATION ; MONSOON CIRCULATION ; SEMIARID REGIONS ; WATER-RESOURCES ; EL-NINO ; IMPACTS ; IRRIGATION ; DROUGHT ; TRENDS ; LAND
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376648
推荐引用方式 GB/T 7714	Xu, Jinqin,Zhu, Xiaochen,Li, Mengxi,et al. Shifts in Dry-Wet Climate Regions over China and Its Related Climate Factors between 1960-1989 and 1990-2019[J],2022,14(2).
APA	Xu, Jinqin,Zhu, Xiaochen,Li, Mengxi,Qiu, Xinfa,Wang, Dandan,&Xu, Zhenyu.(2022).Shifts in Dry-Wet Climate Regions over China and Its Related Climate Factors between 1960-1989 and 1990-2019.SUSTAINABILITY,14(2).
MLA	Xu, Jinqin,et al."Shifts in Dry-Wet Climate Regions over China and Its Related Climate Factors between 1960-1989 and 1990-2019".SUSTAINABILITY 14.2(2022).