干旱区生态环境知识资源中心(Arid): Attribution analyses of reference evapotranspiration changes in China incorporating surface resistance change response to elevated CO2

Arid

DOI	10.1016/j.jhydrol.2021.126387
	Attribution analyses of reference evapotranspiration changes in China incorporating surface resistance change response to elevated CO2
	Gui, Yunpeng; Wang, Qingming; Zhao, Yong; Dong, Yiyang; Li, Haihong; Jiang, Shan; He, Xin; Liu, Kuan
通讯作者	Wang, QM (corresponding author), China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, 1 Fuxing St, CN-100038 Beijing, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	599
英文摘要	Reference evapotranspiration (ET0) is a key component of the water cycle. In this study, a modified Penman-Monteith method incorporating the CO2 effect on surface resistance was used to estimate past change in ET0 in China for 1961-2019 and to project future changes for 2040-2099. A partial-differential equation was used to attribute the changes in ET0. Results indicated the following. (1) A shift point in the annual ET0 series occurred in 1993, in which annual ET0 in China had been decreasing and then increased significantly by 18.93 and 11.19 mm.decade(-1) before and after 1993, respectively, with ET0 having changed most drastically within the temperate continental climate zone. (2) Wind speed and solar radiation were the major dominant factors responsible for the change in ET0 during 1961-1992, and their contribution rates were 48.30 and 38.92%, respectively. During 1993-2019, increasing maximum air temperature was the dominant factor contributing to increasing ET0, with a contribution rate of 81.71%, yet wind speed was the dominant factor affecting ET0 changes at 45% of the stations in China. (3) In future projections, maximum air temperature is expected to be the dominant factor influencing the increase in ET0, the values of which were projected at 1.49 and 16.05 mm.decade(-1) during 2040-2099 under RCP4.5 and 8.5 scenarios, respectively, with projections from five GCMs. The increasing surface resistance response to elevated CO2 was found to be an important contributor to the decrease in ET0. Particularly for the RCP8.5 scenario, the increase in surface resistance was found to lead to the decrease in ET0 by 0.68 mm.year(-1) (-42.37%). This suggests that historical and future tendencies towards aridity in China may be considerably weaker and less extensive than previously assumed.
英文关键词	Reference evapotranspiration Attribution analysis Surface resistance CO2 Climate change
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000673486000016
WOS关键词	REFERENCE CROP EVAPOTRANSPIRATION ; CLIMATE-CHANGE ; POTENTIAL EVAPOTRANSPIRATION ; PAN EVAPORATION ; RIVER-BASIN ; PENMAN-MONTEITH ; ARID REGION ; NORTHWEST CHINA ; PLANT-RESPONSES ; DRIVING FACTORS
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363915
作者单位	[Gui, Yunpeng; Dong, Yiyang] Tsinghua Univ, Dept Hydraul Engn, Beijing 100084, Peoples R China; [Gui, Yunpeng; Wang, Qingming; Zhao, Yong; Dong, Yiyang; Li, Haihong; Jiang, Shan; He, Xin; Liu, Kuan] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, 1 Fuxing St, CN-100038 Beijing, Peoples R China
推荐引用方式 GB/T 7714	Gui, Yunpeng,Wang, Qingming,Zhao, Yong,et al. Attribution analyses of reference evapotranspiration changes in China incorporating surface resistance change response to elevated CO2[J]. 清华大学,2021,599.
APA	Gui, Yunpeng.,Wang, Qingming.,Zhao, Yong.,Dong, Yiyang.,Li, Haihong.,...&Liu, Kuan.(2021).Attribution analyses of reference evapotranspiration changes in China incorporating surface resistance change response to elevated CO2.JOURNAL OF HYDROLOGY,599.
MLA	Gui, Yunpeng,et al."Attribution analyses of reference evapotranspiration changes in China incorporating surface resistance change response to elevated CO2".JOURNAL OF HYDROLOGY 599(2021).