ABSTRACT
Slope affects soil erosion rate through its morphological characteristics and aspect. In this chapter, the authors examine the pertinent processes and their interrelations in order to clarify how slope gradient, length and aspect built up their effects on soil loss. On a macroscopic scale the forces binding soil particles and aggregates to the soil mass are generally measured in terms of apparent cohesion. Splash transport is characterized by an exponential decrease of the ejected soil mass from the point where the drop has impacted. The evaluation of surface depressional storage is not a simple one. The more straightforward methods use techniques such as stereophotographs for building a digital model of the soil surface. The values of precipitation, runoff and erosion given in the table are the ratios between leeward slope values and windward ones. The values relative to Morasha are the ratio between the northward and the westward (windward) slope.
