Chemoecological, physical-chemical and biochemical properties of soils in the transport zone of urban ecosystems

The chemical composition and biological activity of soils has important impact on their ecological, sanitary and hygienic functions. In the urban ecosystems the structure and properties of soils are subject to basic changes under the influence of a complex of anthropogenic influences. The aims of study were analyzes of microelements and heavy metals, chlor-anions, hydrocarbonat-anions, physical-chemical and biochemical properties of soils in transport zone of ecosystems in Perm in 2015 and 2016. Total content (after microwave probe preparation) and mobile phase (after extraction whit 0.1 M КРЦЧОз) of microelements and heavy metals was analyzed whit Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES). Anions were measured whit using of complexonometric titration. Biological activity of soils was determined by intensity of soil respiration and activity of catalase-enzyme. Chemical composition of soil in transport zone was compared whit living zone of city, geo-chemical data and maximum allowable concentrations. Biochemical properties were studied in the soils whit different distance from carriageway and in the living area of city. In the soils of transport zone revealed technogenic accumulation of Cu, Ni, Zn, Pb. In the living area was detected accumulation of Mn and Zn. Soils of transport zone characterized by high content of anions (СГ, HCO£) and alkalinity. The biological activity depends on distance from carriageway and pH of soils.