Belgique ; Erosion des sols ; Modèle ; Modèle numérique de terrain ; Pratique culturale ; Ruissellement ; Utilisation agricole du sol ; Versant
Agricultural land use ; Agricultural practice ; Belgium ; Digital elevation model ; Model ; Rill wash ; Slope ; Soil erosion
A model, the Tillage-Controlled Runoff Pattern model (TCRP model) was developed to create a runoff pattern with flow in the direction of the plough-lines for all tilled fields within a catchment. The model needs a digital elevation model (DEM
), a landuse map and the major tillage orientation per tilled field as input. Runoff patterns created with the model could be used in any raster-based erosion model. The effect of the runoff pattern on simulated erosion patterns is shown for one field using
The AA. present a spatially distributed model for the calculation of sediment delivery to river channels (SEDEM : SEdiment DElivery Model) at a catchment scale (100 to 10 000 km2). The model was applied on several catchments in central Belgium