Evaluate how shifting cultivation helps the nomads in taking care of the soil and the environment

The vegetation is usually cleared by fire, and the ashes add to the fertility of the soil. Shifting cultivation is thus, also called slash and burn agriculture. The cultivated patches are very small and cultivation is done with very primitive tools such as sticks and hoes. After sometime (3 to 5 years) the soil looses its fertility and the farmer shifts to another parts and clears other patch of the forest for cultivation. The farmer may return to the earlier patch after sometime. One of the major problems of shifting cultivation is that the cycle of jhum becomes less and less due to loss of fertility in different parcels. It is prevalent in tropical region in different names, e.g. Jhuming in North eastern states of India, Milpa in central America. Shifting cultivation reduces pest infestation on the land. This method helps to eliminate weeds, insects and other germs effecting the soil. Shifting cultivation allows for farming in areas with dense vegetation, low soil nutrients content, uncontrollable pests.exico and Ladang in Indonesia and Malaysia.