Five reasons for the depletion of forest resources are
1. Overpopulation leading to higher demand of forest products.
2. Construction of dams leading to depletion of forests.
3. Substantial forests in the tribal belts of north-eastern states have been degraded by shifting cultivation (Jhumming) or slash and burn agriculture.
4. Large scale developmental projects like Narmada Sagar Project of Madhya Pradesh which would inundate 40,000 hectares of forests.
5. Mining is another important factor, mainly the Buxa Tiger Reserve in West Bengal is seriously threatened by dolomite mining. It has disturbed the natural habitat of many species and migration route of animals, especially the great Indian Elephant.
