Simulation of diurnal variations of CO2, water and heat fluxes over winter wheat with a model coupled photosynthesis and transpiration

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dc.contributor.author Wang, Jing en_US
dc.contributor.author Yu, Qiang en_US
dc.contributor.author Li, Jun en_US
dc.contributor.author Li, Longhui en_US
dc.contributor.author Li, Xiang-Ge en_US
dc.contributor.author Yu, Gui-Rui en_US
dc.contributor.author Sun, Xiao-Min en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:46:12Z
dc.date.available 2010-05-28T09:46:12Z
dc.date.issued 2006 en_US
dc.identifier 2008006600 en_US
dc.identifier.citation Wang Jing et al. 2006, 'Simulation of diurnal variations of CO2, water and heat fluxes over winter wheat with a model coupled photosynthesis and transpiration', Elsevier Inc, vol. 137, no. 3-4, pp. 194-219. en_US
dc.identifier.issn 0168-1923 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8905
dc.description.abstract A model was developed that couples canopy photosynthesis and transpiration of winter wheat. The model combined a two-layer evapotranspiration model with a coupled photosynthesis?stomatal conductance model to study the diurnal variations of CO2, water and heat fluxes of winter wheat. Field experiments were conducted in Yucheng Comprehensive Experimental Station in the North China Plain to evaluate the model. Half-hourly data of weather variables and CO2, water and heat fluxes were measured by the eddy covariance method in 2002?2003. An analysis of measured flux data showed that there was an evident midday depression of photosynthesis, caused by stomatal closure due to high vapor water deficit and canopy temperature though the soil was well irrigated. There was a close agreement between simulated and measured net radiation, CO2 flux, sensible and latent heat fluxes, which proved the predictive power of the coupled photosynthesis and transpiration model. The response of CO2 flux, canopy conductance and latent heat flux to changes in climatic factors was discussed, which indicated the model could be used to predict CO2, water and heat fluxes of wheat not only in the North China Plain, but also in other climatic regions in China. en_US
dc.language en_US
dc.publisher Elsevier Inc en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/j.agrformet.2006.02.007 en_US
dc.title Simulation of diurnal variations of CO2, water and heat fluxes over winter wheat with a model coupled photosynthesis and transpiration en_US
dc.parent Agricultural and Forest Meteorology en_US
dc.journal.volume 137 en_US
dc.journal.number 3-4 en_US
dc.publocation Netherlands en_US
dc.identifier.startpage 194 en_US
dc.identifier.endpage 219 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 070300 en_US
dc.personcode 0000051709 en_US
dc.personcode 107001 en_US
dc.personcode 0000071175 en_US
dc.personcode 109705 en_US
dc.personcode 0000051994 en_US
dc.personcode 0000051995 en_US
dc.personcode 0000051996 en_US
dc.percentage 100 en_US
dc.classification.name Forestry Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Photosynthesis?transpiration coupled model; CO2 flux; Sensible and latent heat fluxes; Eddy covariance method; Winter wheat; The North China Plain en_US
dc.staffid en_US


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