Question:

Dokuchaev, the Father of Soil Science, did pioneering work on “Chernozem” somewhat similar to that of Indian soil of:

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Chernozem is Russian for "Black Earth."
Therefore, Dokuchaev's pioneering work on Chernozem is directly analogous to the study of the fertile Black Soils (Vertisols) of India.
  • Calcareous soil
  • Alluvial soil
  • Red soil
  • Black soil
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Concept:
Vasily Dokuchaev is widely recognized as the Father of modern Soil Science (Pedology).
He established that soil is a dynamic natural body formed by the interaction of climate, vegetation, parent material, topography, and time.
Detailed Explanation:
Dokuchaev conducted his pioneering research on the Russian Steppes, studying a unique, highly fertile soil type known as Chernozem:
- Chernozem soils (meaning "black soil" in Russian) are characterized by a deep, dark-colored, organic-rich A-horizon.
- These soils contain high amounts of swelling clay, which gives them a high nutrient-holding capacity and excellent structure.
- In the Indian context, the soil type that most closely shares these physical, structural, and aesthetic characteristics is the Black Soil (also known as Regur or Black Cotton Soil, classified as Vertisols).
- Like Chernozems, Indian black soils are rich in montmorillonite clay, swell when wet, shrink and crack when dry, and have a deep dark color (though black soils are lower in organic matter).
- Other soils, like Alluvial, Red, or Calcareous soils, have completely different mineralogical and structural profiles.

Step 2: Final Answer:

The Russian Chernozem studied by Dokuchaev is most similar to the Black Soil of India.
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