Qualitative assessment of the degree of anthropogenic changes in soil by analyzing the in situ composition of the soil liquid phase

Abstract Based on the complex of ecological soil parameters ( E h and pH values, K + , Ca 2+ , NO 3 − activity in soil liquid phase (SLP) measured in situ with ion-selective electrodes) an attempt is made to assess changes in these parameters in different soils in agrocenoses (agricultural ecosystems) from their pristine analogues and to find the direction of the recent processes of soil formation. The relative degree of anthropogenic changes in physical and chemical properties of agricultural soils is: chernozem, l; chestnut soil, 7; gray forest soil, 8; podzol, 12. The analysis of the suite of dynamic attributes show that during cultivation the processes of soil formation result in different types of soil agrocenoses, whose properties and ecological role (excluding chernozems) do not correspond to those of their pristine analogues.