EVALUATION OF POINT EROSION ON PLOTS RECEIVING SIMULATED RAINFALL

Comparisons are made between amounts of soil eroded or deposited at a point using metal erosion pins, gross sediment yield and numerical model predictions. Spatial structure of soil loss distribution is evaluated. Discrepancies between values observed at the pins and values expected based on mode! results and sediment yield sampling are explained by increases in turbulence and the amount of rain near the pins. Implications with regard to vegetation in the form of stalks are suggested.