干旱区生态环境知识资源中心(Arid): Trend, Seasonal, and Irregular Variations in Regional Actual Evapotranspiration Over China: A Multi-Dataset Analysis

Arid

DOI	10.3389/fphy.2021.718771
	Trend, Seasonal, and Irregular Variations in Regional Actual Evapotranspiration Over China: A Multi-Dataset Analysis
	Su, Tao; Feng, Taichen; Huang, Bicheng; Han, Zixuan; Qian, Zhonghua; Feng, Guolin; Hou, Wei
通讯作者	Feng, GL (corresponding author), Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou, Jiangsu, Peoples R China. ; Feng, GL (corresponding author), China Meteorol Adm, China Lab Climate Studies, Natl Climate Ctr, Beijing, Peoples R China. ; Feng, GL (corresponding author), Southern Ocean Sci & Engn Guangdong Lab, Zhuhai, Peoples R China.
来源期刊	FRONTIERS IN PHYSICS
ISSN	2296-424X
出版年	2021
卷号	9
英文摘要	Actual evapotranspiration (AE) is a crucial processes in terrestrial ecosystems. Global warming is expected to increase AE; however, various AE estimation methods or models give inconsistent trends. This study analyzed AE variability in China during 1982-2015 based on the Budyko framework (AE_Budyko), a complementary-relationship-based product (AE_CR), and the weighted average of six reanalyses (AE_WAR). Because the response of AE to driving factors and the performances of AE datasets are both scale-dependent, China has been categorized into six distinct climatic areas. From a regional perspective, the X-12-ARIMA method was used to decompose monthly AE into the trend, seasonal, and irregular components. We examined the main characteristics of these components and the relationships of climate factors with AE. The results indicate that the trend component of AE increased from the mid-1990s to the early 2000s and more recently in the hyper-arid and arid areas. Increasing AE was observed from 1982 to the early 1990s in the semi-arid and dry sub-humid areas. AE increased significantly and had substantial interannual variability for the entire period in the sub-humid and humid areas. Increased precipitation and water supply from terrestrial water storage contributed significantly to increasing AE in the drylands. The simultaneous occurrence of increasing precipitation and wet-day frequency caused increasing AE in the dry sub-humid area. Increased AE could be explained by the increased energy supply and precipitation in the sub-humid and humid areas. Precipitation had the strongest influence on the irregular component of AE in drylands. AE and potential evapotranspiration had a strong positive correlation in the sub-humid and humid areas. Regarding data availability, a discrepancy existed in the trend component of AE_CR because soil moisture was not explicitly considered, whereas the irregular component of AE_Budyko contained distinct variations in humid and sub-humid areas.
英文关键词	actual evapotranspiration X-12-ARIMA method Budyko framework reanalyses potential evapotranspiration China Water supply
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000697995600001
WOS关键词	PAN EVAPORATION TRENDS ; TERRESTRIAL EVAPOTRANSPIRATION ; GLOBAL ENERGY ; RUNOFF ; PRECIPITATION ; MOISTURE
WOS类目	Physics, Multidisciplinary
WOS研究方向	Physics
来源机构	兰州大学 ; 河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363335
作者单位	[Su, Tao; Qian, Zhonghua; Feng, Guolin] Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou, Jiangsu, Peoples R China; [Feng, Taichen; Huang, Bicheng] Lanzhou Univ, Sch Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou, Peoples R China; [Han, Zixuan] Hohai Univ, Coll Oceanog, Nanjing, Peoples R China; [Feng, Guolin; Hou, Wei] China Meteorol Adm, China Lab Climate Studies, Natl Climate Ctr, Beijing, Peoples R China; [Feng, Guolin] Southern Ocean Sci & Engn Guangdong Lab, Zhuhai, Peoples R China
推荐引用方式 GB/T 7714	Su, Tao,Feng, Taichen,Huang, Bicheng,et al. Trend, Seasonal, and Irregular Variations in Regional Actual Evapotranspiration Over China: A Multi-Dataset Analysis[J]. 兰州大学, 河海大学,2021,9.
APA	Su, Tao.,Feng, Taichen.,Huang, Bicheng.,Han, Zixuan.,Qian, Zhonghua.,...&Hou, Wei.(2021).Trend, Seasonal, and Irregular Variations in Regional Actual Evapotranspiration Over China: A Multi-Dataset Analysis.FRONTIERS IN PHYSICS,9.
MLA	Su, Tao,et al."Trend, Seasonal, and Irregular Variations in Regional Actual Evapotranspiration Over China: A Multi-Dataset Analysis".FRONTIERS IN PHYSICS 9(2021).