Tag: soil erosion (geo)

Eolian (or Aeolian) processes pertain to the activity of the wind, specifically the erosion, transport, and deposition of soil and sediment by wind.

Sheet erosion is the uniform removal of soil in thin layers by the force of raindrops, heavy rain is responsible for sheet erosion.

Channeling the water helps manage the flow of runoff on slopes, preventing it from gaining enough speed to cause significant erosion. While terrace cultivation is also used, channeling is a direct control method for rapid flow.

Soil erosion is washing away or blowing away the top layer of the soil. Plants in the forests are big and are present near to each other. During rain or wind, forest plants prevent the top layer of soil to be cleared. These plants keep the soil intact within their roots and do not let it to blow or washed away. But when such plants are cleared, nothing stops the wind or water to blow away or wash away the top soil layer. This leads to soil erosion. 

Farm land tends to erode more rapidly when continuously planted with sugarcane, as sugarcane requires high moisture and organic content. As the amount of moisture and organic content decreases the top layers of soil can be easily eroded by wind or water

Grass cover provides a dense, low-lying protective layer that prevents soil particles from being detached by rain or wind, complementing the protection provided by trees.

Weathered material is transported by agents like water and wind and eventually settles in low-lying areas known as depositional basins, where it may form sedimentary rocks.

The top layer of the soil is the vital component, since all the nutrients required by plants are present in this layer. The loss of topsoil or disturbance of soil structure is known as soil erosion or land erosion. Water erosion is the removal of soil from the lands surface by running water, including runoff from melted snow and ice. Soil erosion by wind is common in dry arid regions where soil is chiefly sandy and the vegetation is very poor or even absent. Fossilization is the alteration of an organism's remains, impressions or activities by physical, biological or chemical changes retaining the original material in some form. Leaching is the process of extracting minerals from a solid by dissolving them in a liquid, either in nature or through an industrial process. Calcification is the accumulation of calcium salts.

The vetiver grass is grown as a narrow hedge row across the slope of the land that slows down rainfall runoff velocity and filters out soil particles. The vetiver hedges can block the passage of soil. They can keep topsoil on site and, over time, retard most surface erosion. Hedges of this deeply rooted perennial are capable of catching eroded soil and helping to build up terraces that stabilize the site.