Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming

doi:10.1029/2018JD029776

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Intensification and Expansion of Soil Moisture Drying in Warm Season Over Eurasia Under Global Warming
	Gu, Xihui 2,3,4; Zhang, Qiang 1,11,12; Li, Jianfeng 3; Singh, Vijay P.9,10; Liu, Jianyu 8; Sun, Peng 7; He, Chunyang 5,6; Wu, Jianjun 1,11,12
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2019-04-16
卷号	124 期号:7 页码:3765-3782
ISSN号	2169-897X
DOI	10.1029/2018JD029776
通讯作者	Zhang, Qiang(zhangq68@bnu.edu.cn) ; Li, Jianfeng(jianfengli@hkbu.edu.hk)
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.
资助项目	National Key Research and Development Program of China[2018YFA0605603] ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences[XDA19070402] ; National Natural Science Foundation of China[41771536] ; Fund for Creative Research Groups of National Natural Science Foundation of China[41621061] ; National Science Foundation for Distinguished Young Scholars of China[51425903] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[CUG180614] ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)[CUGCJ1702] ; Research Grants Council of the Hong Kong Special Administrative Region, China[HKBU22301916] ; Hong Kong Baptist University[FRG2/15-16/043] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1849]
WOS关键词	CLIMATE-CHANGE ; DATA SETS ; SURFACE ; CHINA ; SUMMER ; TRENDS ; PRECIPITATION ; IRRIGATION ; DROUGHT ; IMPACT
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000467147400008
资助机构	National Key Research and Development Program of China ; Strategic Priority Research Program Grant of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Fund for Creative Research Groups of National Natural Science Foundation of China ; National Science Foundation for Distinguished Young Scholars of China ; Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) ; Research Grants Council of the Hong Kong Special Administrative Region, China ; Hong Kong Baptist University ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14088]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Zhang, Qiang; Li, Jianfeng
作者单位	1.Beijing Normal Univ, Acad Disaster Reduct & Emergency Management, Fac Geog Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China 3.Hong Kong Baptist Univ, Dept Geog, Hong Kong, Peoples R China 4.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan, Hubei, Peoples R China 5.Beijing Normal Univ, Ctr Human Environm Syst Sustainabil, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China 6.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing, Peoples R China 7.Anhui Normal Univ, Sch Geog & Tourism, Wuhu, Peoples R China 8.China Univ Geosci, Sch Earth Sci, Lab Crit Zone Evolut, Wuhan, Hubei, Peoples R China 9.Texas A&M Univ, Dept Civil & Environm Engn, College Stn, TX USA 10.Texas A&M Univ, Dept Biol & Agr Engn, College Stn, TX USA
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]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,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.