ИСТИНА

The aim of this work is to study the stability characteristics of soil microbiota (fungi and bacteria) in soil samples with different humus status when contaminated with heavy metals in order to determine the significance of these biotic indicators. The analysis of changes in the structural and functional parameters of soil microbiota in response to polymetallic pollution under controlled conditions in a long-term dynamics is carried out. In samples of chernozem (Voronezh region, carbon 5.4%) and agrozem (rice fields of Kalmykia, carbon 1.5% ) the total biomass of fungi, bacteria, and structural diversity, substrate-induced respiration and enzymatic activity without and with the addition 650 mg/kg Pb + 1100 mg/kg Zn+660 mg/kg Cu were analyzed.