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dc.contributorSimmonds, Lester P.en_US
dc.contributorMorison, Jamesen_US
dc.contributorPayne, Donalden_US
dc.creatorZhang, Hepingen_US
dc.date.accessioned2021-03-31T00:25:56Z
dc.date.available2021-03-31T00:25:56Z
dc.identifierhttps://mel.cgiar.org/dspace/limiteden_US
dc.identifier.citationHeping Zhang, Lester P. Simmonds, James Morison, Donald Payne. (14/6/1998). Estimation of transpiration by single trees: comparison of sap flow measurements with a combination equation. Agricultural and Forest Meteorology, 87 (2-3), pp. 155-169.en_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/12796
dc.description.abstractSap flow estimates for whole trees (scaled from measurements on selected branches using the heat balance method) were compared with estimates of transpiration based on porometry in a study of poplar trees in an agroforestry system in the south of the UK. Sap flow showed good agreement with the transpiration rate estimated using the Penman-Monteith equation with measured stomatal conductance (R-2 = 0.886) on six selected days during the season. The dominant environmental variable influencing transpiration was the vapour pressure deficit, as the aerodynamic term in the Penman-Monteith equation accounted for more than 70% of daily total transpiration, with the rest due to the radiation component. Stomatal conductance, estimated by inverting the Penman-Monteith equation from continuous measurements of sap flow over 55 days, was used to determine the parameters for a multiplicative stomatal conductance model. For an independent data set there was better agreement between measured sap flow and transpiration predicted from the stomatal conductance (R-2 = 0.90) than for calculated and predicted stomatal conductance (R-2 = 0.51). (C) 1997 Elsevier Science B.V.en_US
dc.languageenen_US
dc.publisherElsevier (12 months)en_US
dc.sourceAgricultural and Forest Meteorology;87,(1998) Pagination 155-169en_US
dc.titleEstimation of transpiration by single trees: comparison of sap flow measurements with a combination equationen_US
dc.typeJournal Articleen_US
dcterms.available1998-06-14en_US
dcterms.extent155-169en_US
dcterms.issued1997-11-15en_US
cg.subject.agrovocstomatal conductanceen_US
cg.subject.agrovoctranspirationen_US
cg.subject.agrovocpopulusen_US
cg.subject.agrovocsap flowen_US
cg.contributor.centerInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.centerUniversity of Reading - UORen_US
cg.contributor.centerUniversity of Essexen_US
cg.contributor.funderInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.contributor.projectCommunication and Documentation Information Services (CODIS)en_US
cg.contributor.project-lead-instituteInternational Center for Agricultural Research in the Dry Areas - ICARDAen_US
cg.date.embargo-end-dateTimelessen_US
cg.contactheping.zhang@per.clw.csiro.auen_US
cg.identifier.doihttps://dx.doi.org/10.1016/S0168-1923(97)00017-8en_US
cg.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
mel.impact-factor4.651en_US
cg.issn0168-1923en_US
cg.journalAgricultural and Forest Meteorologyen_US
cg.issue2-3en_US
cg.volume87en_US


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