CHEMICAL AND BIOLOGICAL INDICATORS FOR EVALUATION OF ARCTIC SOIL DEGRADATION AND ITS POTENTIAL TO REMEDIATION

In recent years, significant efforts have been made to accelerate the economic development of Arctic zone, leading intense environmental pollution this region, accompanied by impact accumulated damage in region. The solution these problems is difficult due remoteness areas and severe climatic conditions. Therefore, it important evaluate potential for restoration arctic soils. For purpose, various indicators are used, including biological ones. analyzed soil samples, high concentrations petroleum hydrocarbons (up 47,000 mg/kg) chloride-ions (0.10–0.14 wt %) were established. Microbioassay demonstrated a presence hydrocarbon-oxidizing microorganisms: Penicillium, Azotobacter chroococcum, Bacillus subtilis, Pseudomonas oleovorans. A low enzymatic activity specific climate point out self-restoration ability soil, need its remediation. microbioassay with microbial strains identification remediation methods suitable zone recommended.