干旱区生态环境知识资源中心(Arid): Diverse spatiotemporal patterns of vapor pressure deficit and soil moisture across China

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DOI	10.1016/j.ejrh.2024.101712
	Diverse spatiotemporal patterns of vapor pressure deficit and soil moisture across China
	Chen, Shanshan; Zhang, Songlin; Wu, Shengjun
通讯作者	Wu, SJ
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2024
卷号	52
英文摘要	Study region: China and the different climatic zones. Study focus: Vapor pressure deficit (VPD) and soil moisture (SM) are vital for the land-atmosphere hydrological cycle and vegetation growth. Understanding the spatiotemporal variations of VPD and SM is essential for exploring vegetation dynamics and ecosystem changes. However, our current understanding of the simultaneous variations of VPD and SM within specific regions remains limited. This study utilized Empirical Orthogonal Function (EOF) methods to analyze the spatiotemporal variability of VPD, surface SM (SMsurf), and root-zone SM (SMroot), respectively. We then investigated the synchronous and asynchronous variations of VPD and SM and examined their relationships with climatic factors. New hydrologic insights for the region: From 1980-2020, VPD exhibited a significant upward trend across China and in various climate zones, indicating an increase in atmospheric dryness. However, the trends of SMsurf and SMroot showed a slight upward trend across China but divergent patterns in different climate zones. In summary, approximately 43% of China experiences a significant simultaneous increase in both VPD and SM, mainly in semi-arid and arid regions. Conversely, about 4% of China shows contrasting changes in VPD and SM, primarily in humid tropical and subtropical regions. These findings enhance our understanding of VPD and SM patterns in various climates, emphasizing the significance of soil drought in humid and semihumid regions.
英文关键词	EOF VPD Surface soil moisture Root-zone soil moisture Different climate zones
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001193980800001
WOS关键词	PRODUCTIVITY ; EVAPORATION ; SURFACE ; CLIMATE
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404627
推荐引用方式 GB/T 7714	Chen, Shanshan,Zhang, Songlin,Wu, Shengjun. Diverse spatiotemporal patterns of vapor pressure deficit and soil moisture across China[J],2024,52.
APA	Chen, Shanshan,Zhang, Songlin,&Wu, Shengjun.(2024).Diverse spatiotemporal patterns of vapor pressure deficit and soil moisture across China.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,52.
MLA	Chen, Shanshan,et al."Diverse spatiotemporal patterns of vapor pressure deficit and soil moisture across China".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 52(2024).