Based on the typical metheds of parameterization of canopy resistance,the field mea-surements of stomotal resistance and the vertical distribution of leaf area, three techniques areproposed for scaling the stomotal resistance up to canopy resistance. The usefulness of thesemethods has been evaluated in terms of the values of canopy resistance obtained from the Pen-man-Monteith formula and those of transpiration latent heat flux coming from Bowen ratio-ener-gy balance theory.