Laying the soil profiles was conducted by the route method, the main reference point in this area being the situation
and noticeable changes in the mesa- and micro-relief and vegetation. The main sections are confined to the most
typical elements of the relief where we may expect a change of soil within combinations or variations. Soil sampling
was carried out according to international standards. Heavy metals were determined in twenty-five combined soil
samples.
The object of phytogeochemical sampling was aspen (Populus Tremula) – the most common forest tree vegetation
in the researched area. Sampling of bark was conducted in July on separate trees, forest edges, etc.). On the site of
sampling, 20 Ч 20 m, an aspen was selected with a trunk with the diameter of 18-20 cm, and also soil crust samples
were taken at the height of 100-120 cm from the ground surface. In total, eight samples were taken.
The total content of heavy metals (Zn, Cu, Cd, Pb) was determined with the use of inversion voltammetric analysis
(FR.1.31.2004.00986) in the accredited hydrogeochemistry research laboratory of Tomsk Polytechnic University.