Role of coastal forest ecosystems of Predvolzhye in preservation of plants and soils variety

In forest ecosystems of the right bank of Volga River in Predvolzhye of Tatarstan Republic a variety of plants and soils is investigated. At the specific and ecosystem levels the forest vegetation is studied. A typological variety of plants is reflected in 20 types forest biogeocenoses, similarity level between which is determined by the cluster analysis. In ecosystems diagnostic species of vascular plants are allocated. Under bed curtains of coastal forest phytocenosis various soil forming processes promoting formation of a wide range of soil versions proceed. The concrete combination of ecological factors (the soil of the forming types, conditions of relief and moistening, vegetation) causes formation of various forest soils.