Zharikova Y.A.
Вестник Алтайского государственного аграрного университета 2019; (3): 71-78
Urban soils are the most common soils in Ussuriysk. Gleyic burozems, Gleyic podbels and agro-podbels are found among weakly disturbed urbi-stratified soils. Soils of different functional zones of the city (recreational, residential multi-storey and low-rise buildings, transport and residential, industrial) have both similar features of the structure and properties, and significant differences associated with varying anthropogenic load. The soil reaction is close to neutral and slightly alkaline in most soils of the city. Organic matter is distributed unevenly across the profile of urban soils. The greatest content of humus and almost complete saturation of the bases are revealed in soils of zones of low-rise building and transport and residential as well as in the upper horizons of soils of the industrial zone. The content of mobile forms of phosphorus and potassium varies widely. Technogenic horizons are often extremely highly phosphated. The analysis of the elemental composition of soils shows that the process of urbanization has a significant impact not only on the dynamic agrochemical properties, but also on the fundamental characteristics of soils. The content of total forms exceeds clarke for urban soils for iron, aluminum, potassium in all urban functional zone, for phosphorus in the soils of the low-rise development zone, for zinc in the transport and residential zone, for copper in the zone of multi-storey development, for cobalt in the recreational zone. The greatest content of heavy metals is revealed mainly in the middle technogenic layers of soils of all functional zones of the city. The greatest accumulation of lead and zinc was found in the upper soil horizons in the areas of transport and residential and low-rise buildings.
