Approaches toward soil mapping of urban territories with the city of perm as an example

The diversity of urban soils and technogenic surface formations (TSFs) in the city of Perm is predetermined by the diverse lithologic and geomorphic conditions; different types of land use (residential areas with low-rise and multistory buildings, industrial zones, and agricultural zones) further enhance it. The soil cover of Perm has a mosaic pattern with contrasting changes in the morphology and genesis of its components. The areas of separate soils and TSFs cannot be delineated upon medium- and even large-scale mapping of the territory. We suggest that urban pedocomplexes—combinations of soils and TSFs developing within a given functional zone of the city from the same parent materials—should be shown on the map. Urban pedocomplexes differ from one another in the character of the predominant soils and TSFs. They inherit some features from the natural soils and parent materials and are transformed under the impact of the major type of land use.