Factors of soil formation and their evolution in the south of the Zerafshan valley

In article is stated main groundforming (the geomorphological-hydra geological land reclamation, climatic and anthropogen) factors, describes the evolution of soils in lower part. Zerafshan valley are chosen 3 geomorphological regions. Differ raised contents a magnesium, high water table on irrigated territory roast time heavy expences them evaporation. Economic activity person reflected climate, hydralogical condition to surfaces land. As result reclamation measures, takyr-meadow, old-fallow meadow with bog-meadow salt marshes, gray-brown were transformed into old-irrigated alluvial soils. The increase was due development new, previously unrevealed territories.