CHANGES IN STAVROPOL CHERNOZEMS WHEN THEY ARE INVOLVED IN AGRICULTURAL USE

When virgin chernozems of the Central Caucasus are involved in arable land, their fundamental changes occur: increased rates of weathering of mineral matter; hardsettin, compaction and de-structuring; decrease in organic matter; depletion of mobile forms of nutrients; acidification and alkalinization water saturation, flooding and waterlogging; development of water and wind erosion. Such changes cannot be called evolution. The process of soil degradation or metamorphosis has begun.