Slope development is by slope decline. Landscape development occurs through cycles of tectonic events that are not uniform. Slope evolution is by parallel retreat followed by slope replacement. The end landform is called an endrumpf that has characteristics similar to a peneplain, although an endrumpf cannot be the initial form for a new cycle of landscape development, i.e., a new tectonic event would completely destroy it. After an initial uplift, the landscape evolves because of parallel retreat of slopes.
Pediments migrate across the landscape.
Several pediments joined together forms a pediplain , which is the end landform in the cycle. A pediplain cannot be the initial form for a new cycle of landscape development. King believes that landscape evolution occurs only in arid or semi-arid climates and that landforms now existing in humid climates are relict. Slope aspect - the direction toward which the surface of the soil faces. Soils can be grouped according to drainage class, which is a way of indicating how wet the soil was during its formation.