globalchange  > 气候减缓与适应
DOI: 10.1007/s00382-018-4364-3
WOS记录号: WOS:000467187600008
论文题名:
Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China
作者: Zhang, Qiang1; Yang, Zesu2; Hao, Xiaocui3; Yue, Ping1
通讯作者: Yang, Zesu ; Yue, Ping
刊名: CLIMATE DYNAMICS
ISSN: 0930-7575
EISSN: 1432-0894
出版年: 2019
卷: 52, 期:7-8, 页码:3891-3903
语种: 英语
英文关键词: Climate transition region ; Surface evapotranspiration ; Precipitation-based climate types ; Warming trends ; Transition features
WOS关键词: SEMIARID CLIMATE ; SOIL-MOISTURE ; LOESS PLATEAU ; PRECIPITATION FEEDBACK ; PAN EVAPORATION ; DRYLANDS ; TRENDS
WOS学科分类: Meteorology & Atmospheric Sciences
WOS研究方向: Meteorology & Atmospheric Sciences
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 250-350mm 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.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/125508
Appears in Collections:气候减缓与适应

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作者单位: 1.CMA, Key Lab Arid Climat Change & Reducing Disaster Ga, Key Open Lab Arid Climat Change & Disaster Reduct, Inst Arid Meteorol, Lanzhou 730020, Gansu, Peoples R China
2.Chengdu Univ Informat Technol, Coll Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Sichuan, Peoples R China
3.Sichuan Acad Environm Sci, Chengdu 610041, Sichuan, Peoples R China

Recommended Citation:
Zhang, Qiang,Yang, Zesu,Hao, Xiaocui,et al. Conversion features of evapotranspiration responding to climate warming in transitional climate regions in northern China[J]. CLIMATE DYNAMICS,2019-01-01,52(7-8):3891-3903
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