气候变化领域集成服务门户(CCPortal): Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China

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DOI	10.1007/s00382-018-4364-3
	Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China
	Zhang Q.; Yang Z.; Hao X.; Yue P.
发表日期	2019
ISSN	0930-7575
起始页码	3891
结束页码	3903
卷号	52 期号:2020-07-08
英文摘要	Global surface evapotranspiration is one of the most significant components of the response of the water cycle to a warming climate. However, trends in surface evapotranspiration differ considerably from the trend in climate warming according to recent studies, with some studies even showing an opposing trend. The reason for this difference in the response of surface evapotranspiration to climate warming is still not completely understood. We validated the gridded FLUXNET evapotranspiration dataset and the Global Land Surface Assimilation Dataset (GLDAS) against evapotranspiration data observed in northern China using the eddy covariance system. The response of surface evapotranspiration to an increase in temperature varied with the type of climate (classified by the amount of precipitation) and the trend of surface evapotranspiration with warming showed similar features to the transitions between these climate types. The climate type with precipitation in the range of 250–350 mm was the most sensitive to the effects of warming on evapotranspiration. In more humid climates, surface evapotranspiration increased with increasing temperature, whereas in drier climates surface evapotranspiration decreased with increasing temperature. A similar response of evapotranspiration to increasing temperatures was also observed elsewhere in regions of climate transition. There are two main mechanisms of evapotranspiration: (1) an increase in temperature resulting in a direct increase in potential evapotranspiration; and (2) an increase in temperature resulting in a loss of soil moisture due to the increase in evapotranspiration, which in turn will indirectly suppress surface evapotranspiration due to the loss of vegetation. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climate transition region; Precipitation-based climate types; Surface evapotranspiration; Transition features; Warming trends
语种	英语
scopus关键词	evapotranspiration; precipitation (climatology); soil moisture; temperature effect; trend analysis; vegetation; warming; China
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146414
作者单位	Institute of Arid Meteorology, CMA, Key laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province, Key Open Laboratory of Arid Climatic Change and Disaster Reduction of CMA, Lanzhou, 730020, China; College of Atmospheric Sciences, Chengdu University of Information Technology, Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu, 610225, China; Sichuan Academy of Environmental Sciences, Chengdu, 610041, China
推荐引用方式 GB/T 7714	Zhang Q.,Yang Z.,Hao X.,et al. Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China[J],2019,52(2020-07-08).
APA	Zhang Q.,Yang Z.,Hao X.,&Yue P..(2019).Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China.Climate Dynamics,52(2020-07-08).
MLA	Zhang Q.,et al."Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China".Climate Dynamics 52.2020-07-08(2019).