What are the types of alluvial soil?

By Ritesh|Updated : September 1st, 2022

Two different types of alluvial soils have evolved in the upper and middle Ganga plains - Khadar and Bhangar. Every year, floods deposit khadar, a new kind of alluvium that improves the soil by adding fine silts. A system of older alluvium deposited far from the flood plains is represented by Bhangar. The soils in Khadar and Bhangar both have calcareous concretions (Kankars).

Types of Alluvial Soil

  • Alluvial soil is available in the Terai region valleys and the mid-hills valleys around Pokhara and Kathmandu.
  • The valley lies between the Mahabharat hills and Siwalik, which widen at places to form flat fertile valleys known as Dun valleys.
  • In floodplains along river courses, new alluvial soil with higher silt and sand than clay is deposited.
  • Alluvial soil is found in the high areas above the floodplain, covering a larger part of the Terai.
  • The new alluvial soil nutrient content is fair to moderate based on how long it was cultivated.
  • The nutrient content in old alluvial soils is low. Compared to other soils, alluvial soil is the most productive.
  • It is primarily found around rivers carried by streams as stone weather.

Summary:

What are the types of alluvial soil?

Two distinct alluvial soil types have developed in the upper and middle Ganga plains. They are Khadar and Bhangar.

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