Ravines of Chambal-Gwalior Region – UPSC GS1

 Why in news?
Union Minister of Agriculture & Farmers’ Welfare held a meeting with World Bank representatives to bring large Ravines of Gwalior–Chambal region under agriculture.
What are Ravines?
  • Badland topography is a major feature of the Chambal valley is characterized by an undulating floodplain, gullies and ravines.
  • Ravines are a type of fluvial erosional feature and are formed as a result of constant vertical erosion by streams and rivers flowing over semi-arid and arid regions.
How are they formed?
  • Researchers consider the regional climate as a major factor in the formation of ravines.
  • Climate indeed plays a huge role by supplying the water in the form of rain or snow as well as providing the temperature variations.
  • However, the ravines of Chambal are a bit difficult to be explained solely on climatic terms.
  • The region through which the Chambal River flows does not receive enough rainfall to create ravines that are 60–80 m deep.
  • Researchers have attributed neotectonic activities to the Chambal ravines genesis.
Other factors
  • It is well known that rivers are full of energy and actively erode in their initial phases and progressively become passive as they attain their base levels.
  • But sometimes, due to tectonic movements, the base level may be lowered further thus energizing the river and reactivating the erosion. This is known as River Rejuvenation.
  • Moreover, wind erosion has also contributed to the formation of Chambal ravines.
What are Badlands?
  • Badlands are erosional landforms of highly dissected morphology that are created on soft bedrock in a variety of climate conditions.
  • They develop in arid to semiarid areas where the bedrock is poorly cemented and rainfall is generally heavy and intermittent.
  • The dry, granular surface material and light vegetation are swept from the slopes during showers, leaving the gullies bare.
Chambal River and its Tributaries:

Related Question:
  • What is Badland Topography? Discuss the scope of their utilization as arable land in India.
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