Morphogenesis of sod-podzolic soils in fallow conditions

The features of the morphological organization of sod-podzolic soils are considered using the example of age-diverse deposits operating in various ecological and genetic conditions. Separate phases of transformation of the soil material of the former arable horizon are identified, associated with the stages of overgrowth of fallow lands. Attention is paid to the resistance of sod-podzolic soils, on the one hand, to agropedoturbation, and, on the other, to the action of zonal factors of soil formation in the postagrogenic period, depending on the degree of soil cultivation in the previous time. It is shown that by the age of 20‒30, the upper part of the profile shows traces of the effects of gilding and eluvial-gley processes, which are reflected in the specific features of the structure of the soil stratum — the appearance of interlayers and spots of podzolized material with characteristic horizontal layering, the appearance of humus nodules, ferruginous-manganese compounds and lightening of the entire material of the former arable horizon.