Urbostratozems of residential multistorey districts of Perm: formation, transformation and assessment of the ecological state
The processes of formation of technogenic urbostratozems on the basis of grounds self-overgrowing with ruderal vegetation are considered. The main physical and chemical properties of urbostratozems have been studied. The main soil-forming processes in urbostratozems - soddy process, humus formation and humus accumulation, as well as decarbonatization of surface horizons - occur with a combination of zonal and anthropogenic factors of soil formation. Phytotesting showed that urbostratozems generally have a satisfactory ecological state and provide better conditions for plants than zonal soddy-podzolic soils and grounds from which they are formed.