The main results were that following wildfire and mulching in the plantations: (1) the revised model was able to predict first-year post-fire plot-scale runoff and erosion rates (NS(Runoff) = 0.54 and NS(Erosion) = 0.55) for both forest types, and (2) first year predictions were improved both by the seasonal changes in the model parameters (NS(Runoff) = 0.70 and NS(Erosion) = 0.83); and by considering the effect of soil water repellency on the runoff (NS(Runoff) = 0.81 and NS(Erosion) = 0.89), (3) the individual seasonal predictions were considered accurate (NS(Runoff) = 0.53 and NS(Erosion) = 0.71), and the inclusion of the soil water repellency in the model also improved the model at this base (NS(Runoff) = 0.72 and NS(Erosion) = 0.74).