As sheet erosion processes being the first stage and initial form of the evolvement of the erosion on slope,the study of sheet erosion processes plays a great role in modeling the erosion processes and providing a basis for erosion control.An experimental research on sheet erosion processes on loess slope was carried out,and the results showed that erosion rates increased sharply then went to smooth with time both under different rainfall intensities and under different slope gradients,with the turning poin...