A method to compute the effect of vertical mulching on the reduction of surface runoff

Abstract

duration. Computations for a combination of four ds (5 to 20 m), five θ i (16 to 32%-vol), and three rainfall regimes (124 mm h −1 for 20 min, 66 mm h −1 for 60 min, and 42 mm h −1 for 120 min) showed an increasing runoff reduction as ds or θ i decreased. In some cases, runoff was even completely prevented. The reductions were larger in the 60-min than in the 20-min rainfall. For the 120-min rainfall, there was no runoff with any combination of ds and θ i .