干旱区生态环境知识资源中心(Arid): Analysis of spatial-temporal trends and causes of vapor pressure deficit in China from 1961 to 2020

Arid

DOI	10.1016/j.atmosres.2023.107199
	Analysis of spatial-temporal trends and causes of vapor pressure deficit in China from 1961 to 2020
	Dong, Jianhua; Wu, Lifeng; Zeng, Wenzhi; Xiao, Xiang; He, Jie
通讯作者	Zeng, WZ
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2024
卷号	299
英文摘要	Understanding the spatial-temporal trends and variability of vapor pressure deficit (VPD) is important for promoting climate protection and water management. This study was based on long-term series data of maximum/minimum air temperature (T-max/T-min) and relative humidity (RH) from 1740 meteorological stations in China from 1961 to 2020 to jointly analyze the spatial-temporal variation characteristics of VPD at different time scales, climate zones and extreme events and their influencing factor. The results showed an overall highly significant increasing trend in VPD, T-max, and T-min, with Sen's slope (SS) values of 0.0178 kPa/decade, 0.22 degrees C/decade, and 0.32 degrees C/decade, respectively. The opposite was true for RH (SS = -0.41%/decade). Moreover, the trends all changed abruptly around the year 2000. The VPD exhibited a highly significant upward trend in spring as well as at the junction of climatic zones and along the southeastern coast. This was particularly evident in the semi-arid steppe of Inner Mongolia (IM), the humid tropical south China (SC), and the semi-humid warm-temperate north China (NC) regions. For the frequency distribution of VPD extremes in each climate zone, the arid desert of northwest China (NWC)> > IM > NC. The frequency range was 758-910 days/decade, 249-410 days/decade, and 170-300 days/decade, respectively. Moreover, their average frequency of extreme events was 88 times/decade, 55 times/decade, and 38 times/decade respectively. The main meteorological factors affecting VPD taken together were T-max, RH, T-min, sunshine duration (N), and wind speed (U-2) with mean importance values of 0.612, 0.351, 0.020, 0.016, and 0.001 respectively. Meanwhile, we found that VPD and reference crop evapotranspiration (ET0) were positively correlated and negatively correlated with soil water content and altitude. The maximum growth rate of VPD was observed in Cropland and Impervious environments. This research reveals the spatial-temporal characteristics of meteorological elements in China and provides a reference for scholars to formulate countermeasures against climate change.
英文关键词	Spatial-temporal Trend analysis Vapor pressure deficit Climate zones Temperature
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001165858000001
WOS关键词	CLIMATE-CHANGE ; ARID REGION ; POTENTIAL EVAPOTRANSPIRATION ; ATMOSPHERIC DEMAND ; SOLAR-RADIATION ; WATER-VAPOR ; IMPACTS ; EVAPORATION ; TRANSPIRATION ; PRECIPITATION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402990
推荐引用方式 GB/T 7714	Dong, Jianhua,Wu, Lifeng,Zeng, Wenzhi,et al. Analysis of spatial-temporal trends and causes of vapor pressure deficit in China from 1961 to 2020[J],2024,299.
APA	Dong, Jianhua,Wu, Lifeng,Zeng, Wenzhi,Xiao, Xiang,&He, Jie.(2024).Analysis of spatial-temporal trends and causes of vapor pressure deficit in China from 1961 to 2020.ATMOSPHERIC RESEARCH,299.
MLA	Dong, Jianhua,et al."Analysis of spatial-temporal trends and causes of vapor pressure deficit in China from 1961 to 2020".ATMOSPHERIC RESEARCH 299(2024).