Canopy conductance

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Canopy conductance, commonly denoted , is a dimensionless quantity characterizing radiation distribution in tree canopy. By definition, it is calculated as a ratio of daily water use to daily mean vapor pressure deficit (VPD).[1] Canopy conductance can be also experimentally obtained by measuring sap flow and environmental variables.[2] Stomatal conductance may be used as a reference value to validate the data, by summing the total stomatal conductance of all leaf classes within the canopy.[3]


  1. ^ Callander, B.A.; Woodhead, T. "Canopy conductance of estate tea in Kenya". Elsevier. 
  2. ^ Morris, Jim; Mann, Louise; Collopy, John (1998). "Transpiration and canopy conductance in a eucalypt plantation using shallow saline groundwater". Tree Physiology. Heron Publishing (18): 547–555. 
  3. ^ WIMOVAC (1998). "WIMOVAC Canopy Processes Module". University of Illinois.