derived an integrated exponential equation applicable to all cases, in which coefficient is a function of initial wave height, and coefficient b (the slope in the log transformation of the exponential equation) is a function of canopy closure, height and density. The integrated equation was used to define appropriate mangrove band widths. On the assumption that the average maximum wave height is 300 cm and the safe wave height behind the forest band is 30 cm, the required mangrove forest band width associated with its structures was defined.