干旱区生态环境知识资源中心(Arid): Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming

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DOI	10.1029/2018JD029776
	Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming
	Gu, Xihui 1,2,3; Zhang, Qiang4,5,6 ; Li, Jianfeng 2; Singh, Vijay P.7,8; Liu, Jianyu 9; Sun, Peng 10; He, Chunyang 11,12; Wu, Jianjun 4,5,6
通讯作者	Zhang, Qiang ; Li, Jianfeng
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2019
卷号	124 期号:7 页码:3765-3782
英文摘要	Soil moisture (SM) is a key hydrological component regulating the net ecosystem energy exchange at the land-atmosphere boundary layer over the continents via heat fluxes and relevant feedback on precipitation. Due to its ecological and meteor-hydrological implications, SM change is of great significance in Eurasia that has the highest population density and fragile ecological environment. Using monthly data from the Global Land Data Assimilation System, this study investigated SM changes over Eurasia during the warm season (May-September). It was found that recent 63 years witnessed widespread decreasing SM across Eurasia during the warm season. Regions with a drying SM tendency kept expanding till the 1990s. Specifically, the largest decreasing magnitude of SM with the aridity index ranging 0.5-0.6 and 1.0-1.1 was found along the semi-arid and dry-humid transition regions, respectively. In addition, more significant drying SM was observed in Sahel, northern Asia, northeastern Asia, and western Europe. Weakening West African monsoon (WAM)/East Asia summer monsoon did not benefit the propagation of water vapor flux to the Sahel regions/northeastern and northern Asia, and hence decreased SM in these regions. Besides, results by the maximum covariance analysis highlighted the roles of warming climate in SM variations over Eurasia during the warm season. Global climate models also indicate decreased SM due to global warming and projects continuously decreasing SM in the warm season over the 21st century under Representative Concentration Pathway (RCP) 2.6, RCP4.5, RCP6.0, and RCP8.5 scenarios. Decreasing SM across the Eurasia and related ecological and environmental implications should cause international concern.
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000467147400008
WOS关键词	CLIMATE-CHANGE ; DATA SETS ; SURFACE ; CHINA ; SUMMER ; TRENDS ; PRECIPITATION ; IRRIGATION ; DROUGHT ; IMPACT
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	北京师范大学 ; 中国科学院地球环境研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217066
作者单位	1.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan, Hubei, Peoples R China; 2.Hong Kong Baptist Univ, Dept Geog, Hong Kong, Peoples R China; 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China; 4.Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Minist Educ, Beijing, Peoples R China; 5.Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, Fac Geog Sci, Beijing, Peoples R China; 6.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; 7.Texas A&M Univ, Dept Biol & Agr Engn, College Stn, TX USA; 8.Texas A&M Univ, Dept Civil & Environm Engn, College Stn, TX USA; 9.China Univ Geosci, Sch Earth Sci, Lab Crit Zone Evolut, Wuhan, Hubei, Peoples R China; 10.Anhui Normal Univ, Sch Geog & Tourism, Wuhu, Peoples R China; 11.Beijing Normal Univ, Ctr Human Environm Syst Sustainabil, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; 12.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Gu, Xihui,Zhang, Qiang,Li, Jianfeng,et al. Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming[J]. 北京师范大学, 中国科学院地球环境研究所,2019,124(7):3765-3782.
APA	Gu, Xihui.,Zhang, Qiang.,Li, Jianfeng.,Singh, Vijay P..,Liu, Jianyu.,...&Wu, Jianjun.(2019).Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(7),3765-3782.
MLA	Gu, Xihui,et al."Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.7(2019):3765-3782.