Special characteristics of soil formation at the boundary of the transition from Forest-steppe into Steppe

  • M. Mostipan Кіровоградський національний технічний університет
  • F. Topolnyy Кіровоградський національний технічний університет
Keywords: soils, Forest Steppe, Steppe, transition belt, typical chernozem, ordinary chernozem


Studying the soil agroformations of Kirovohrad region showed considerable difference between the mapped chernozem and actual situation were discovered. The typical in the steppe part of the region were marked* on the maps as ordinary, and vice versa, ordinary chernozem in the forest-steppe were defined as typical. Soil sections were made on the watershed plateaus as well as on the slopes of varying steepness and exposure. Particular attention was paid to the depth and shape of the carbonates. It is shown that in the condlitions of, developed relief of the same latitude on the southern exposure slopes soils inherent in the southern territories are formed and on the northern slopes soils are more typical of the northern territories. Clash with reality on modern maps of soil caused by different approaches to defining the boundaries between the forest-steppe and steppe. 30’s of last century, the maps of soils limit was set on the southern border distribution of typical chernozem watersheds, which is 10–15 km south of Kirovograd. While the map of soil in 1949, this limit ran 20 km north of Kirovograd. Transitional chernozem that are intermediate between typical and conventional stood on the card. They contain Bilozirka at a depth of 150–160 cm. Instructions and requirements of the comprehensive soil testing methods under which they conducted continuous survey in 1957–1961, respectively, did not provide for the allocation of transitional chernozem. These documents are not allowed to allocate the typical chernozem of steppe and ordinary chernozem in forest-steppe. Dividing line between natural areas became the southern boundary of the natural forests in watersheds available at the time. A 30–40 km width belt was proposed to be formed at the boundary of the transition from Forest Steppe into Steppe within which, depending on the terrain, forest steppe landscapes as well as steppe landscapes can be formed. We consider it appropriate to resume the allocation of the chernozem transition from the typical to ordinary, where white soft spot appears at the depth of 140–160 cm.


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Agricultural sciences (agronomics, agricultural ecology, land reclamation, ecology, crops husbandry, farming)