干旱区生态环境知识资源中心(Arid): Changes in Soil Moisture Persistence in China over the Past 40 Years under a Warming Climate

Arid

DOI	10.1175/JCLI-D-19-0900.1
	Changes in Soil Moisture Persistence in China over the Past 40 Years under a Warming Climate
	Li, Mingxing; Wu, Peili; Ma, Zhuguo; Lv, Meixia; Yang, Qing
通讯作者	Li, MX (corresponding author), Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing, Peoples R China.
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2020
卷号	33 期号:22 页码:9531-9550
英文摘要	Variability in soil moisture has implications for regional terrestrial environments under a warming climate. This paper focuses on the spatiotemporal variability in the intra-annual persistence of soil moisture in China using the fifth-generation reanalysis dataset by the European Centre for Medium-Range Weather Forecasts for the period 1979-2018. The results show that in China, the mean intra-annual persistence in the humid to arid zones increased from 60 to 115 days in the lower layer but decreased from 19 to 13 days and from 25 to 14 days in the upper and root layers, respectively. However, these changes were strongly attenuated in extremely dry and wet regions due to the scarcity of soil moisture anomalies. Large changes in persistence occurred in the lower soil layer in dryland areas, with a mean difference of up to 40 days between the 2010s and the 1980s. Overall increasing trends dominated the large-scale spatial features, despite regional decreases in the eastern arid zone and the North and Northeast China plains. In the root layer, the two plains experienced an expanded decrease while on the Tibetan Plateau it was dominated by decadal variability. These contrasting changes between the lower and root layers along the periphery of the transition zone was a reflection of the enhanced soil hydrological cycle in the root layer. The enhanced persistence in drylands lower layer is an indication of the intensified impacts of soil moisture anomalies (e.g., droughts) on terrestrial water cycle. These findings may help the understanding of climate change impacts on terrestrial environments.
英文关键词	Data assimilation Hydrologic models Land surface model Climate variability Decadal variability Ecosystem effects
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000589812200002
WOS关键词	TIBETAN PLATEAU ; ECMWF MODEL ; FREEZE-THAW ; SHORT-TERM ; PRECIPITATION ; MEMORY ; NETWORK ; UNCERTAINTIES ; SIMULATIONS ; VARIABILITY
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327530
作者单位	[Li, Mingxing; Ma, Zhuguo; Lv, Meixia; Yang, Qing] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing, Peoples R China; [Wu, Peili] Hadley Ctr, Met Off, Exeter, Devon, England; [Ma, Zhuguo] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Mingxing,Wu, Peili,Ma, Zhuguo,et al. Changes in Soil Moisture Persistence in China over the Past 40 Years under a Warming Climate[J]. 中国科学院大气物理研究所,2020,33(22):9531-9550.
APA	Li, Mingxing,Wu, Peili,Ma, Zhuguo,Lv, Meixia,&Yang, Qing.(2020).Changes in Soil Moisture Persistence in China over the Past 40 Years under a Warming Climate.JOURNAL OF CLIMATE,33(22),9531-9550.
MLA	Li, Mingxing,et al."Changes in Soil Moisture Persistence in China over the Past 40 Years under a Warming Climate".JOURNAL OF CLIMATE 33.22(2020):9531-9550.