Photo credit: The Media Express
Wind Erosion Control
Wind erosion is controlled by reducing the wind forces on erodible soil particles or by creating aggregates on soil surfaces that are? more resistant to wind forces. There are various methods of biological and physical methods to control wind erosion, including windbreakers, maintaining vegetation residues on the soil surface, utilizing stable soil aggregates or clods, reducing field width, roughing of the land surface and leveling of the land.
Much progress has been made in the evolution of technologies for the prevention and control of wind erosion in recent years. On the application side, however, there remains more to be done, especially in arid regions. A closer analysis of the wind erosion situation in these areas will indicate that if this phenomenon is to be controlled and contained, there is a need to first appraise and understand existing techniques, then to select and apply the most appropriate mix of technologies in the context of integrated land management specific to each region.
While individual conservation practices can be successful in controlling erosion, a combination of practices should always be considered when a wind erosion control system is being planned. Droughts will be always a limiting factor in planing of wind erosion control methods. Soil clods and ridging for erosion control are all temporary control measures and serve best as supplemental practices (1).
Climatical factors play important roles in wind erosion control.
Read the full article: The Media Express
Author: Willem Van Cotthem
Honorary Professor of Botany, University of Ghent (Belgium). Scientific Consultant for Desertification and Sustainable Development. View all posts by Willem Van Cotthem