Influence of Agroecological Factors on the Qualitative State of Soils of Krasnodar Krai

The paper discusses agroecological factors affecting the quality of the soil. The data on changes in climatic indicators in the period from 1980 to 2015 are presented. The results of studies on changes in the structure of the soil cover in typical areas of the Northern and Central climatic zones of the Krasnodar Krai are presented. The influence of agricultural land use on soil properties is revealed. The change in the density of chernozems is given depending on the degree of soil washout. The patterns of changes in the hydrophysical properties of ordinary chernozems of different degrees of washout were revealed. The change in the structural state of soils is given. It is concluded that changes in the structure of the soil cover and morphometric characteristics of the soils of the polygons (Timashevskiy district, Novokubanskiy polygon, and the municipal district of Krasnodar) under the influence of natural and climatic factors indicate the manifestation of degradation processes in soils. In particular, in the Timashevsky district, the processes of waterlogging and flooding are most developed, as evidenced by the dynamics of their areas. In the Novokubansky district, erosion processes (water, wind) are developed, as evidenced by the data obtained in the course of studies on reducing the humus layer, depending on the degree of manifestation of degradation processes. In the municipal district of Krasnodar, compaction and merging are developed.