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Scaling carbon dioxide and water vapour exchange from leaf to canopy in a deciduous forest. II. Model testing and application
Author(s) -
BALDOCCHI D. D.,
HARLEY P. C.
Publication year - 1995
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/j.1365-3040.1995.tb00626.x
Subject(s) - canopy , environmental science , atmospheric sciences , water vapor , stomatal conductance , carbon dioxide , deciduous , temperate deciduous forest , irradiance , radiative transfer , temperate forest , photosynthesis , tree canopy , ecology , temperate climate , botany , meteorology , physics , biology , quantum mechanics
The scaling of CO 2 and water vapour transfer from leaf to canopy dimensions was achieved by integrating mechanistic models for physiological (photosynthesis, stomatal conductance and soil/root and bole respiration) and micrometeorological (radiative transfer, turbulent transfer and surface energy exchanges) processes. The main objectives of this paper are to describe a canopy photosynthesis and evaporation model for a temperate broadleaf forest and to test it against field measurements. The other goal of this paper is to use the validated model to address some contemporary ecological and physiological questions concerning the transfer of carbon and water between forest canopies and the atmosphere. In particular, we examine the role of simple versus complex radiative transfer models and the effect of environmental (solar radiation and CO 2 ) and ecophysiological (photo‐synthetic capacity) variables on canopy‐scale carbon and water vapour fluxes.