A Transport-Distance Approach to Scaling Erosion Rates: 2. Sensitivity and Evaluation of MAHLERAN.

The article presents a study which evaluates the MAHLERAN model, which is a numerical model for assessing hillslope-landscape erosion, runoff and nutrients. A sensitivity analysis shows that the numerical model is consistent with analytical model of Parson and colleagues (2004), and demonstrates that down slope patterns of sediment flux on hillslope are complex interaction of rainfall intensity, duration and pattern, hillslope gradient, surface roughness and sediment size. The model is also capable of reproducing the sedigraph with an overall normalized root-mean-square error of 18.4% and Nash-Sutcliffe efficiency of 0.90.