ABSTRACT
Laboratory experimental results showed that Philippine grass which has the highest dense patch which showed the highest potential of reducing the volume of surface runoff. This chapter focuses on the interception storage performance of local grass species which normally used in Malaysia. Considering the large area covered by the vegetations, a significant effect can be obtained through interception storage on flash flood resulted from rainfall events. However the effects of different characteristics of plants cover on the rate and volume of surface runoff were very limited. Vegetation can help in enhancing the infiltration and surface roughness and reduces the kinetic impact of raindrops thus enhancing the groundwater recharge and reducing flash flood. An increasingly industrialized global economy over the last century has led to a dramatic increment of the impervious area which contributes to the rise of volume and velocity of urban storm water.
