In north eastern states, the jhum culture is a major threat to biodiversity - substantiate

Explanation

In shifting cultivation, plots of natural tree vegetation are burnt away and the cleared patches are farmed for 2-3 seasons, after which their fertility reduces to a point where crop production is no longer profitable. The farmer then abandons this patch and cuts down a new patch of forest trees elsewhere for crop production. This system is practiced in north-eastern regions of India. When vast areas are cleared and burnt, it results in loss of forest cover, pollution and discharge of `CO_(2)` which in turn attributes to loss of habitat and climate change which has and impact on the faunal diversity of that regions.