Agro-Ecological Aspects of the Change of Sulphate Sulphur Content in Chernozem OF THE Buh-Dnipro Interstream Area in Ukraine

摘要

The functional agro-ecological relation of hydrothermal coefficient (HTCV_(V.IX)) with the parameters of sulphate sulphur content, humus and nitrogen, soil density and total porosity in the most widespread soils of the region, which are typical and ordinary chernozems, were studied. In order to identify the difference between agrarian and natural ecosystems in the processes of sulphate accumulation, in accordance with the concept of V.V. Medvedev, we have made soil sections of land of various uses. All studies were conducted within the right bank of the Southern forest-steppe and northern steppe, as well as the transitional area of Ukraine. A close correlation between the content of sulphate sulphur and the total content of humus in the investigated soils of forest-steppe, steppe and transition zones of the Buh-Dnipro inter-stream of Ukraine was identified. Therefore, the studies showed that agricultural activities lead to soil compaction of agro-ecosystems and the reduction of sulphate sulphur content in them.