DYNAMICS OF CHANGES IN SOIL PARAMETERS OF POST-RECLAMATION LANDS IN THE DRY STEPPE OF KHAKASSIA

As a result of observations of the same areas of post-reclamation lands (2001, 2009, 2022), it was found that by the 23-28 years of natural evolution, chestnut soils are in a state close to virgin, with saline generic characteristics. It is saturated with exchangeable magnesium, sodium and organic matter and has a lumpy-nutty structure. The upward migration of salts leads to a rise in the boundaries of the mass accumulation of carbonates. The positive dynamics of humus reserves has been revealed.