Desert similar. They occur in regions where large temperature differences occur between sea and land. Moist warm air rises over the land, deposits its water content and circulates back to sea. Further inland, areas receive very little precipitation. The Thar Desert near the India/Pakistan border is of this type. In some parts of the world, deserts are created by a rain shadow effect. Orographic lift occurs as air masses rise to pass over high ground. In the process they cool and lose much of their moisture by precipitation on the windward slope of the mountain range. When they descend on the
Thar Desert forest area of 31150 km. which is about 9% of the geographical area. The forest area is mainly in southern districts of Rajasthan like Udaipur and Chittorgarh. The minimum forest area is in Churu district only 80 km. Thus the forest is insufficient to fulfill the needs of firewood and grazing in desert districts. This diverts the much needed cattledung from the field to the hearth. This in turn results into the decrease in agricultural production. Agroforestry model is best suited to the people of desert. Some Institutes have done good work in Agroforestry. The scientists of Central Arid Zone