Global variation of transpiration and soil evaporation and the role of their major climate drivers

doi:10.1002/2017JD027025

	Global variation of transpiration and soil evaporation and the role of their major climate drivers
	Zhang, Yongqiang 1; Chiew, Francis H. S.1; Pena-Arancibia, Jorge 1; Sun, Fubao 2; Li, Hongxia 3; Leuning, Ray 4
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2017-07-16
卷号	122 期号:13 页码:6868-6881
ISSN号	2169-897X
DOI	10.1002/2017JD027025
通讯作者	Zhang, Yongqiang(yongqiang.zhang@csiro.au)
英文摘要	Although global variation in actual evapotranspiration has been widely investigated, it remains unclear how its two major components, transpiration and soil evaporation, are driven by climate drivers across global land surface. This paper uses a well-validated, process-based model that estimates transpiration and soil evaporation, and for the first time investigates and quantifies how the main global drivers, associated to vegetation process and the water and energy cycle, drive the spatiotemporal variation of the two components. The results show that transpiration and soil evaporation dominate the variance of actual evapotranspiration in wet and dry regions, respectively. Dry southern hemisphere from 13 degrees S to 27 degrees S is highlighted since it contributes to 21% global soil evaporation variance, with only 11% global land area. In wet regions, particularly in the humid tropics, there are strong correlations between transpiration, actual evapotranspiration, and potential evapotranspiration, with precipitation playing a relatively minor role, and available radiative energy is the major contributor to the interannual variability in transpiration and actual evapotranspiration in Amazonia. Conversely in dry regions, there are strong correlations between soil evaporation, actual evapotranspiration, and precipitation. Our findings highlight that ecohydrological links are highly related to climate regimes, and the small region such as Australia has important contribution to interannual variation in global soil evaporation and evapotranspiration, and anthropogenic activities strongly influence the variances in irrigation regions.
资助项目	AmeriFlux (U.S. Department of Energy, Biological and Environmental Research, Terrestrial Carbon Program[DE-FG02-04ER63917] ; AmeriFlux (U.S. Department of Energy, Biological and Environmental Research, Terrestrial Carbon Program[DE-FG02-04ER63911] ; CFCAS ; NSERC ; BIOCAP ; Environment Canada ; NRCan ; GreenGrass ; KoFlux ; LBA ; NECC ; OzFlux ; TCOS-Siberia ; USCCC ; CarboEuropeIP ; FAO-GTOS-TCO ; iLEAPS ; Max Planck Institute for Biogeochemistry ; National Science Foundation ; University of Tuscia ; Universite Laval ; U.S. Department of Energy
WOS关键词	ATMOSPHERE WATER FLUX ; TERRESTRIAL EVAPOTRANSPIRATION ; DECADAL TRENDS ; CYCLE ; MOSAICS ; INVENTORY ; ENERGY ; GCM
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000407900300010
资助机构	AmeriFlux (U.S. Department of Energy, Biological and Environmental Research, Terrestrial Carbon Program ; CFCAS ; NSERC ; BIOCAP ; Environment Canada ; NRCan ; GreenGrass ; KoFlux ; LBA ; NECC ; OzFlux ; TCOS-Siberia ; USCCC ; CarboEuropeIP ; FAO-GTOS-TCO ; iLEAPS ; Max Planck Institute for Biogeochemistry ; National Science Foundation ; University of Tuscia ; Universite Laval ; U.S. Department of Energy
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/61676]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yongqiang
作者单位	1.CSIRO Land & Water, Canberra, ACT, Australia 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu, Sichuan, Peoples R China 4.CSIRO Marine & Atmospher Res, Canberra, ACT, Australia
推荐引用方式 GB/T 7714	Zhang, Yongqiang,Chiew, Francis H. S.,Pena-Arancibia, Jorge,et al. Global variation of transpiration and soil evaporation and the role of their major climate drivers[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(13):6868-6881.
APA	Zhang, Yongqiang,Chiew, Francis H. S.,Pena-Arancibia, Jorge,Sun, Fubao,Li, Hongxia,&Leuning, Ray.(2017).Global variation of transpiration and soil evaporation and the role of their major climate drivers.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(13),6868-6881.
MLA	Zhang, Yongqiang,et al."Global variation of transpiration and soil evaporation and the role of their major climate drivers".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.13(2017):6868-6881.