EVOLUTION AND SOIL FORMATION OF LOWER REACHES OF ZERAVSHAN RIVER

The level of mineralized ground water, which is higher than the critical one, causes salinization of soils and that is reflected in the scheme of soil evolution for the 70-year period. The contrast among soil salinization of upper reaches of Bokharan delta, its lower reaches and Karakul delta is eliminated. All soils are equally subjected to salinization processes. Irrigated gray-brown meadow soils, which are transformed into meadow ones over time, are also salinized.