Show simple item record

dc.contributorSimmonds, Lester P.en_US
dc.contributorMorison, Jamesen_US
dc.contributorPayne, Donalden_US
dc.creatorZhang, Hepingen_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.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.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
cg.subject.agrovocstomatal conductanceen_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.isijournalISI Journalen_US
dc.identifier.statusTimeless limited accessen_US
cg.journalAgricultural and Forest Meteorologyen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

DSpace software copyright © 2002-2016  DuraSpace
MELSpace content providers and partners accept no liability to any consequence resulting from use of the content or data made available in this repository. Users of this content assume full responsibility for compliance with all relevant national or international regulations and legislation.
Theme by 
Atmire NV