{"id":80514,"date":"2026-03-02T20:46:27","date_gmt":"2026-03-02T15:16:27","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=80514"},"modified":"2026-03-21T10:44:53","modified_gmt":"2026-03-21T05:14:53","slug":"soil-erosion","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/soil-erosion\/","title":{"rendered":"Soil Erosion, Definition, Types, Causes, Factors, Impact"},"content":{"rendered":"

Soil Erosion is a natural geomorphological process involving the detachment and removal of soil and weathered rock materials by exogenetic forces such as water, wind, ice, gravity, plants, animals, and human activities. Under natural vegetation cover, soil erosion occurs slowly as part of denudation and remains largely balanced by soil formation. However, when this natural equilibrium is disturbed, erosion accelerates rapidly.\u00a0<\/span><\/p>\n

Soil Erosion<\/b><\/h2>\n

Soil Erosion refers to the loosening, detachment, transport, and deposition of topsoil particles from land surfaces by physical agents, primarily water and wind. In its natural form, also called geological erosion, soil removal occurs slowly and uniformly over long periods. Accelerated soil erosion, also known as man induced erosion, results from human altered land use patterns and removes soil at rates ten to several thousand times faster than natural soil formation.\u00a0<\/span><\/p>\n

According to L.D. Meyer and W.H. Wischmeier, soil particle detachability is the critical stage in erosion, controlled by grain size, cohesion, and flow velocity. Particles larger than 0.2 mm require higher water velocity for detachment. When erosion exceeds soil regeneration capacity, it transforms into severe soil degradation<\/strong><\/a>, undermining ecological balance and agricultural sustainability.<\/span><\/p>\n

Soil Erosion Types<\/b><\/h2>\n

The types of Soil Erosion based on dominant physical agents along with their mechanisms and consequences are listed below:<\/span><\/p>\n

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  1. Water Erosion: Caused by rainfall and surface runoff, water erosion includes splash, sheet, rill, gully, streambank, landslide, and coastal erosion.<\/span><\/li>\n
  2. Raindrop (Splash) Erosion: Raindrops of about 5 mm diameter strike soil at 32 km\/hr, dislodging particles and destroying soil aggregates. It is a sub-type of water erosion.<\/span><\/li>\n
  3. Sheet Erosion: Uniform removal of thin topsoil layers by overland flow, often unnoticed but responsible for major nutrient losses.<\/span><\/li>\n
  4. Rill Erosion: Formation of shallow finger-like channels after sheet erosion, which gradually deepen and multiply annually.<\/span><\/li>\n
  5. Gully Erosion: Deep channels exceeding 30 m in width and depth, severely restricting land use and farm operations.<\/span><\/li>\n
  6. Streambank Erosion: Wearing away of riverbanks during floods, altering river courses and damaging infrastructure and farmland.<\/span><\/li>\n
  7. Landslide Erosion: Sudden downslope movement of soil due to gravity, slope instability, or saturation, causing major land loss.<\/span><\/li>\n
  8. Coastal Erosion: Wave action and sea ingress remove coastal soils, depositing sand inland and degrading agricultural land.<\/span><\/li>\n
  9. Wind Erosion: Dominant in arid and semi arid regions, removing fine particles through suspension, saltation, and surface creep.<\/span><\/li>\n
  10. Tillage Erosion: Soil displacement caused by repeated ploughing on slopes, often exceeding water erosion in cultivated lands.<\/span><\/li>\n<\/ol>\n

    Soil Erosion Factors<\/b><\/h2>\n

    The natural and human induced drivers controlling Soil Erosion intensity and processes across landscapes in a concise, process oriented manner have been described below:<\/span><\/p>\n