Different management practices lead to distinct surface and subsurface soil physical conditions, which in turn result in different levels of rainfall erosion. In this context, a 5.5 year field erosion-study was conducted with the objective of studying the effects of both tillage and cropping systems and forms of crop residue management on some surface and subsurface physical soil conditions and their influence on rainfall erosion. For this purpose, rainfall was simulated on a severely degraded, sandy loam Paleudult with 0.08 m m-1 […]

The soil erodibility factor (K factor) of the Universal Soil Loss Equation (USLE) refers to the natural soil susceptibility to erosion and represents the quantity of lost soil per rain erosivity unit (R factor), a factor, which is of great importance in conservation management. Using data of soil loss, measured under natural rainfall conditions in collector ponds of superficial runoff, and of natural rainfall erosivity (EI30) in the period from 1989 to 1998 in Lages (SC), the soil erodibility factor […]

A cartographic simulation in a Geographical Information System (GIS) was used to evaluate the environmental impacts of different forest management strategies on a watershed scale. The project was conducted in a small (2 km2) watershed located at northern coast of the State of Espírito Santo, Brazil, which is inserted in an area of eucalypt-clone plantation comprised by the agro-industrial complex Aracruz Celulose S.A. Potential impacts were assessed by applying the Universal Soil Loss Equation (USLE) in a GIS, where different […]