CHANGE OF CLIMATIC FACTORS OF SOIL-FORMATION OF MOUNTAIN AND SUBMONTANE SOILS IN FERGANA VALLEY

New data on climatic factors of soil-formation of mountain and submontane soils in Fergana valley are given in this research work; it was found out that the average annual temperature in Fergana for 1924-1977 was 12,9 ºС, and there is a growth of this indicator by 1,85 ºС over the last 10 years that points at aridization growth. The paradox is found out – the precipitation level increase is observed with rising temperature. On the basis of long-term climatic research, the conclusion is drawn that in this part of the valley we consider the slow aridization process and change of soil borders of vertical zones.