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Learn Principles of Agronomy with Rahul

Losses due to wind erosion

  1. Drifting of dust particles:
  • The sand particles are blown by wind and deposited on good fertile land cover up the soil.
  • Grasses, trees, shrubs and hedges may be smothered or buried.
  • Railways and roads are sometimes blocked by drifting sand or soil and this incurs assed maintenance costs.

 

  1. Damage to crops:
  • Crop damage, particularly in the seedling stage, serious stand and subsequent yield and quality
  • losses are incurred and in the extreme, tender seedlings may be completely killed.
  • Often, sufficient soil is removed to expose the plant roots or ungerminated seed and this results in complete crop failure.
  • Covering of stabilized crops or pasturage by drifting soil is another result.

 

  1. Soil loss:
  • Fertile top soil is lost by wind erosion. Finer soil fractions (silt, clay and organic matter) are removed and carried away by the wind, leaving the coarser fractions behind.
  • This sorting action not only removes the most important material from the standpoint of productivity and water retention, but also leaves a more sandy and thus a more erodible soil than the original.
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