This chapter presents some of the available modelling techniques to predict stomatal conductance at leaf and canopy level, the key driver of the transpiration component in the evapotranspiration process of vegetated surfaces. The process-based models reported, are able to predict fast variations of stomatal conductance and the related transpiration and evapotranspiration rates, e.g. at hourly scale. This high–time resolution is essential for applications which couple the transpiration process with carbon assimilation or air pollutants uptake by plants. In these cases, the big-leaf approach, together with the resistive analogy which simulates the gas-exchange between vegetation and atmosphere, is a simple but valid example of a process-based model which includes the stomatal conductance behaviour, as well as a basic representation of the canopy features.
Lingua originaleEnglish
Titolo della pubblicazione ospiteIn Evapotranspiration - Remote Sensing and Modeling
EditorAyse Irmak
Numero di pagine18
Stato di pubblicazionePubblicato - 2012


  • agroecosystems
  • models
  • ozone fluxes
  • stomatal conductance


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