ИСТИНА

One of the world’s largest cities with a well-developed river network is Moscow. The 80% of these streches of water are regulating. About 470 of them are in canalized in sewers, enclosed to lodgments or have been filled up. Three sites on the right bank of the Moscow River were pedological examined for the presented study. The soil cover of the Moscow River valley comprises native soils as well as human-modified urban soils. The main ways and steps of the valley soil anthropogenic evolution have been disclosed. The upper parts of formerly periodically flooded alluvial soils are becoming dryer because of two reasons. First, the surface of these soils was elevated with landfill material and exceeded the level of flooding therefore and second because of water regulation measures. However, the deeper parts of these soils remain under water logging. Hence, the processes of gleysation and iron segregation and others are take place here. Thus, pedogenesis has remained synlithogenic (the simultaneity of sedimentation and soil development), but the accumulation of natural alluvial material is substituted by the accumulation of urbo-pedo-sediments.