2 results

Sediments transported from an Hapludox through water erosion events

Ildegardis Bertol, Eva Vidal Vázquez, Antonio Paz González, Neroli Pedro Cogo, Rodrigo Vieira Luciano, Evandro Luis Fabian

01/Feb/2010

Quantity and size distribution of sediments transported by runoff are influenced by soil management, cover and crop systems, and by rainfall, among other factors, representing an important aspect in soil conservation planning. The objective of this study was to quantify runoff sediments and relate them with runoff velocity, during soybean growth, in a simulated rainfall experiment initiated in 1998 on a typical Hapludox, under the following soil management systems: conventional tillage with one plowing plus two diskings (CT) and no-tillage […]

Relationships between size of eroded sediments, runoff velocity, surface roughness created by tillage, and size of aggregates in a soil submmited to different managements

Leandro Bochi da Silva Volk, Neroli Pedro Cogo

01/Oct/2009

Several factors determine the selectivity of the soil erosion process by rainfall concerning the size of eroded-sediments transported in the runoff water. Among them, it is important to point out the intensity of the rainfall and its associated runoff, the texture and degree of consolidation of the soil surface layer, the form of erosion (interill, rill, or gully), the microrelief of the terrain or surface roughness created by tillage, and the size and stability of the soil aggregates. Considering that, […]