Podzolized soils of the river’s first-loess terraces in the Forest-Steppe

Abstract

The purpose. To determine ecological-genetic status of soils of first-loess terraces. Methods. Quantitative diagnosing of soils on morphological-genetic structure of a profile with subsequent refinement with results of analytical probes of the select soil samples. Results. Podzolized soils of first-loess terraces, in comparison with typical chernozem, are characterized by decrease of the sum of exchange cations, that diminishes their buffering power a little to react against change of pH, displaces response of soil substrate aside slightly sour. It needs to be considered at development of fertilizing systems and soil reclamation. Podzolized soils are more sensitive to importation of heightened doses of fertilizers, especially physiologically sour. They can aggravate agrophysical state at delayed agrotechnological operations on soil cultivation. The great value has the account of the ecological-genetic status of chernozems of first-loess terraces at realization of monitoring over their state. Conclusions. Soils of first-loess terraces of Left-bank Forest-steppe according to existing soil-maps and charts are mainly typical chernozems, however differ from them in parameters of morphological-genetic properties. Application of quantitative diagnostics with the use of quotients of COPR, CPHA and CRHA enables uniquely to position genetic features of soils of first-loess terraces. It is fixed that on the significant areas which are adjacent to first over flood plain terrace as a wildlife reserve of forest vegetation the soil covering of first-loess terraces is presented by podzolized chernozems which sporadically were exposed to forest vegetation. Podzolized status of soils of first-loess terraces is necessary for normative-monetary assessment of lands, differentiation of agrotechnologies for their intelligent use, determination of resource opportunities, monitoring state.