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

doi:10.1029/2018JD029776

IEECAS OpenIR > 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 1,2,3; Zhang, Qiang 4,5,6; 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(zhangq68@bnu.edu.cn) ; Li, Jianfeng(jianfengli@hkbu.edu.hk)
	2019-04-16
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
卷号	124 期号:7 页码:3765-3782
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.
DOI	10.1029/2018JD029776
关键词[WOS]	CLIMATE-CHANGE ; DATA SETS ; SURFACE ; CHINA ; SUMMER ; TRENDS ; PRECIPITATION ; IRRIGATION ; DROUGHT ; IMPACT
收录类别	SCI ; SCI
语种	英语
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研究方向	Meteorology & Atmospheric Sciences
项目资助者	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
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000467147400008
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14089
专题	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.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]. 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.