干旱区生态环境知识资源中心(Arid): Dominant factor of dry-wet change in China since 1960s

Arid

DOI	10.1002/joc.6728
	Dominant factor of dry-wet change in China since 1960s
	Xu, Jinqin; Wang, Dandan; Qiu, Xinfa; Zeng, Yan; Zhu, Xiaochen; Li, Mengxi; He, Yongjian; Shi, Guoping
通讯作者	Qiu, XF
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
英文摘要	The dry-wet climate conditions of an area are mainly determined by the water input (e.g., precipitation, P) and output (e.g., potential evapotranspiration, PET). Based on three dry-wet indices and the differential equation, this study designed a new attribution method to quantify the contributions of P and PET to the dry-wet change, so as to determine the dominant factors of the dry-wet change over whole China (CHINA) and various hydroclimate regions (i.e., arid region, AR; semi-arid region, SAR; semi-humid region, SHR; and humid region, HR) during 1960-2018 and six interdecadal periods. Results showed that the overall weak drying in CHINA was dominated by an increase in PET, while climate humidification in AR and HR was dominated by an increase in P, climate drying in SHR was dominated by the reduced P, and the weak drying in SAR was co-dominated by P and PET during 1960-2018. The dominant factors of dry-wet change over CHINA and each hydroclimate region varied in different decades. Briefly, climate humidification in CHINA and various hydroclimate regions was basically dominated by P in different decades, and the drying was mainly dominated by P in the 1960s-1980s, but the contribution of PET to climate drying began to become prominent after the 1980s. Besides, we found that P contributed more to dry-wet change than PET on the station and regional scales, but the contribution of P to climate drying on a national scale was underestimated to some extent due to the regional offset effect of the increase/decrease in P during 1960-2018, as well as in the 1990s. These findings implied that the importance of research on the regional or local scale, and equal attention should be paid to the effects of P and PET changes in the future drought or dry-wet change research.
英文关键词	dominant factor dry-wet change potential evapotranspiration precipitation
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000548415800001
WOS关键词	SEA-SURFACE TEMPERATURES ; CLIMATE-CHANGE ; RIVER-BASIN ; REFERENCE EVAPOTRANSPIRATION ; TEMPORAL VARIABILITY ; DROUGHT SEVERITY ; POTENTIAL EVAPOTRANSPIRATION ; ANNUAL PRECIPITATION ; TRENDS ; ATTRIBUTION
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/2XILL650/328095
作者单位	[Xu, Jinqin; Qiu, Xinfa; Zhu, Xiaochen; Li, Mengxi] Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Nanjing 210044, Peoples R China; [Wang, Dandan] Huzhou Meteorol Bur, Huzhou, Peoples R China; [Zeng, Yan] Jiangsu Meteorol Bur, Jiangsu Res Inst Meteorol Sci, Nanjing, Peoples R China; [Zhu, Xiaochen] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA; [He, Yongjian; Shi, Guoping] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jinqin,Wang, Dandan,Qiu, Xinfa,et al. Dominant factor of dry-wet change in China since 1960s[J]. 南京信息工程大学.
APA	Xu, Jinqin.,Wang, Dandan.,Qiu, Xinfa.,Zeng, Yan.,Zhu, Xiaochen.,...&Shi, Guoping.
MLA	Xu, Jinqin,et al."Dominant factor of dry-wet change in China since 1960s".INTERNATIONAL JOURNAL OF CLIMATOLOGY