Abstract
The Western Ciscaucasia, which occupies the flat part of the Krasnodar Territory, is a unique natural site of the Southern Federal District of the Russian Federation. The soil covering of this region is characterized by domination of fertile super-deep and deep Kuban chernozems. However, their intensive use has led to an imbalance between their effective and potential fertility, as evidenced by a decrease in humus reserves and a worsening of its qualitative composition; depletion in nitrogen, phosphorus, potassium, calcium; acidification; heavy metal pollution; and, consequently, an ecological imbalance in the soil–plant system.
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