PROPERTIES OF URBAN SOILS (ON THE EXAMPLE OF THE CITY OF ODESSA)
The human influence predominates over the natural soil formation in urban soils. Conducted researches indicate that motor vehicle and industry emissions sig- nificantly affect the change in physical and chemical properties of urban soils, impairing their ecological condition. Physical and chemical properties of soils of Odessa are much different from their natural counterparts. The main differences are: shift pH to the alkaline reaction, increased toxic salts, high rate of humus, uneven distribution of nutrients, high content of natrium cations as part of the soil-absorbing complex. Especially unfavorable conditions for plant growth in the city have soils that are located within the joint impact of industrial and road transport emissions, which can negatively affect as the growth and development of plants as the health of urban populations.