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Alluvial soils of the Gangetic Valley as Azonal soils

Posted on : 11 Jan 2020

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  • The soils of the Extra-Peninsula are formed due to the depositional work of rivers and wind. They are very deep and are often referred to as transported or azonal soils. Development of these soils has been influenced more by the nature of its parent material. These lack well-developed horizons because of immaturity or other factors that have prevented their development. These soils are divided into three groups:
    • Lithosols: These soils have a very thin layer and are- full of stones. They are usually situated on sloppy terrains where no soil development is possible.
    • Regosols: These are also undeveloped soils and consist mainly of loose or unconsolidated sands such as sand dunes. Lithosols and regosols have no agricultural significance.
    • Alluvium: Alluvial soils are derived from water- deposited sediments. Most alluviums are highly fertile soils. These are deposits of silt and other fine material brought down by rivers sometimes over long distances. As the materials are deposited every year they have had no time for soil development. These soils are deep and do not show prominent horizon development. These soils vary greatly in their physical and chemical properties. Drainage conditions also create many variations. Mostly these soils are poorly drained and have a greyish colour with mottling’s. Most of these soils are acidic, except those in drier area. Soils developed on older alluvium generally show development of profile characteristics.

Article Related Questions

  1. The alluvial soils of the Gangetic Valley are described as:

  2. 1.Intra-zonal

    2.Azonal

    3.Zonal

    4.None of these

    Right Ans : Azonal


  3. The 1857 Uprising was the culmination of the recurrent big and small local rebellions that occured in the preceding hundred years of British Rule. Elucidate (Answer in 150 words) - 2019 Mains


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