IGSNRR OpenIR
Evapotranspiration partitioning at the ecosystem scale using the stable isotope method-A review
Xiao, Wei1,2; Wei, Zhongwang3,4; Wen, Xuefa5
2018-12-15
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
Volume263Pages:346-361
Corresponding AuthorXiao, Wei(wei.xiao@nuist.edu.cn) ; Wei, Zhongwang(zhongwang.wei@hydra.t.u-tokyo.ac.jp)
AbstractTerrestrial evapotranspiration (ET) consists of evaporation (E) from canopy-intercepted water, evaporation from soil and open water, and transpiration (T) from plants. Determining the contribution of T to ET (hereafter T/ET) is challenging but necessary for improving water resource management and understanding the response of ecosystem water/energy budgets to climate change. Water stable isotopes provide unique information on ecosystem processes and can be used to partition evapotranspiration at the ecosystem scale. In this paper, the aim is to review the state of the science on the isotope method for ecosystem ET partitioning, with a focus on uncertainties related to estimating the three isotopic end members (isotopic compositions of ET, T and E). The published results show larger T/ET variations during the growing season in croplands due to water management and rapid leaf area index (LAI) changes compared to in other natural ecosystems. Another robust result is that on average, grasslands have lower T/ET than woodlands. The isotopic composition of ET is provided by measurements, while the isotopic compositions of T and E are generally obtained using the Craig-Gordon model with appropriate modifications. Significant advances have been made in the techniques for estimating the isotopic composition of ET, largely due to the availability of fast-responding instruments for in situ measurements of water vapor isotopic composition. The largest source of uncertainty in the T/ET estimation comes from uncertainties in the isotopic composition of ET. Based on published results of the uncertainties in the three end members, we estimate that a typical uncertainty range for T/ET is +/- 21% (one standard deviation). This review provides background information and theoretical references for studies on isotopic hydrology, ecosystem processes and climate change.
KeywordEvapotranspiration partitioning Stable isotope Two-source mixing model Craig-Gordon model Keeling plot approach Kinetic fractionation factor
DOI10.1016/j.agrformet.2018.09.005
WOS KeywordGLOBAL TERRESTRIAL EVAPOTRANSPIRATION ; FOLIAR WATER-UPTAKE ; CARBON-DIOXIDE ; LEAF WATER ; SOIL EVAPORATION ; EDDY COVARIANCE ; OXYGEN-ISOTOPE ; PLANT TRANSPIRATION ; FLUX COMPONENTS ; STATE TRANSPIRATION
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0503904] ; National Natural Science Foundation of China[41475141] ; National Natural Science Foundation of China[41505005] ; U.S. National Science Foundation[1520684] ; Ministry of Education of China[PCSIRT] ; Priority Academic Program Development of Jiangsu Higher Education Institutions[PAPD]
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; U.S. National Science Foundation ; Ministry of Education of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions
WOS Research AreaAgriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS SubjectAgronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS IDWOS:000449236500032
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52591
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXiao, Wei; Wei, Zhongwang
Affiliation1.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing, Jiangsu, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Jiangsu Collaborat Innovat Ctr Atmospher Environm, Nanjing, Jiangsu, Peoples R China
3.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06520 USA
4.Univ Tokyo, Dept Civil Engn, River & Environm Engn Lab, Tokyo, Japan
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Wei,Wei, Zhongwang,Wen, Xuefa. Evapotranspiration partitioning at the ecosystem scale using the stable isotope method-A review[J]. AGRICULTURAL AND FOREST METEOROLOGY,2018,263:346-361.
APA Xiao, Wei,Wei, Zhongwang,&Wen, Xuefa.(2018).Evapotranspiration partitioning at the ecosystem scale using the stable isotope method-A review.AGRICULTURAL AND FOREST METEOROLOGY,263,346-361.
MLA Xiao, Wei,et al."Evapotranspiration partitioning at the ecosystem scale using the stable isotope method-A review".AGRICULTURAL AND FOREST METEOROLOGY 263(2018):346-361.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xiao, Wei]'s Articles
[Wei, Zhongwang]'s Articles
[Wen, Xuefa]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xiao, Wei]'s Articles
[Wei, Zhongwang]'s Articles
[Wen, Xuefa]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xiao, Wei]'s Articles
[Wei, Zhongwang]'s Articles
[Wen, Xuefa]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.