Here's why:
* Gully erosion: This type of erosion occurs when concentrated water flow, often during heavy rainfall, carves deep channels or gullies in the soil. The Chambal River, with its seasonal fluctuations and occasional floods, has played a significant role in creating these ravines through gully erosion.
* Other contributing factors: While gully erosion is the main culprit, other types of erosion like sheet erosion and wind erosion also contribute to the problem.
* Human activities: Human activities like deforestation, overgrazing, and poor agricultural practices have exacerbated the problem by reducing vegetation cover and increasing soil vulnerability.
In essence, the combination of the Chambal River's flow, rainfall patterns, and human activities has led to the extensive gully erosion that created the Chambal ravines.
