An event-based model of soil erosion and sediment transport at the catchment scale

Soil conservation over large areas is expensive and needs to be targeted to obtain maximum benefit for the least cost. In this paper, an event-based model of soil erosion and sediment transport is outlined in the context of the Manawatū catchment in New Zealand for which all the major tributaries are monitored for water and sediment discharge. Tests demonstrate that the model is robust.