Land use has got a great influence upon actual erosional slope processes development and evolution and the stability of slopes. Tree clearing and degradation of agroterraces in Aiud and Stejeriş catchments, led to destabilization of the slopes and the quick development of gullz processes and landslides. The present paper gives example of a present-day model, which shows that, changing landuse style, can be the setting point in the formation and rapid development of actual slope erosional processes.