Soil Erosion And Vegetation Erosion - 1402 Words

What is Soil Erosion, Types of Soil Erosion, Causes of Soil Erosion Soil erosion is a naturally occurring process in which the top layer of the soil washes away that affects all landforms which can occur due to heavy rains, cyclone, typhoons, hurricanes, twisters, animals, human activities etc. In agriculture, soil erosion denotes to the wearing away of a field s topsoil by the natural physical forces of water and wind) or through forces associated with farming activities such as tillage. In Erosion, there are three major phenomenon that takes place– soil detachment, movement and deposition. Topsoil, which is high in organic matter, fertility and soil life, is relocated elsewhere on-site where it builds up over time or is carried†¦show more content†¦The amount of hill slope erosion largely depends on how the land is used. Sheet erosion occurs when a thin layer of topsoil is removed over a whole hillside paddock—and may not be readily noticed. Rill erosion occurs when runoff water forms small channels as it concentrates down a slope. These rills can be up to 0.3m deep. If they become any deeper than 0.3m they are referred to as gully erosion. Scalding: Scalding can occur when wind and water erosion removes the top soil and exposes saline soils. Raindrop impact alone can result in large amounts of soil being moved. However water or wind moving over the surface will remove more soil, and contribute to sheet, rill and gully erosion. Erosion also tends to remove the lighter, smaller soil particles first (such as clay and silt), leaving fine and coarse sand behind. Gully Erosion: Gully erosion happens when runoff concentrates and flows strongly enough to detach and move soil particles. For example, a waterfall may form, with runoff picking up energy as it plunges over the gully head. Gullies may develop in watercourses or other places where runoff concentrates. This type of erosion is highly visible and affects soil productivity, restricts land use, and can damage roads, fences and buildings. The depth of the gully developed can range from 2m up to 15 m. Tunnel Erosion: Tunnel erosion is the removal of subsoil. When water penetrates through a soil crack orShow MoreRelatedErosional Hotspot - Himalayan Foothills1250 Words   |  5 PagesHimalayan foothills to become an erosional hotspot. One big contributor towards the soil degradation in the area are humans. People have been living in the Himalayas for thousands of years. As the years go by, people move around the area, destroying the natural flora of the land. Some of these lands might originally be rich in biodiversity, yet as these lands are being populated by more people, the productive vegetation is destroyed. Also, as the global demand for natural resources increase, people goRead MoreThe Effects Of Soil And On The Environment1220 Words   |  5 Pagestheir practices in general have not always been kind to the soil and environment. Agricultural practices completely disrupt the natural soil process and, therefore, altering the natural cycle of nutrients. A healthy soil is a fundamental and nec essary part of our entire ecosystem. Not only is soil crucial for the functionality of our environment, but so many aspects of daily human life are affected by the soil around us. The healthy soil beneath us assists the process of decomposing biological wasteRead MoreThree Major Causes of Soil Erosion and How They Can Be Corrected1124 Words   |  5 PagesIntroduction Soil erosion is one form of soil degradation along with soil compaction, low organic matter, loss of soil structure, poor internal drainage, salinisation, and soil acidity problems. 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