We study the hidden regularities of forest recovery dynamics, which intensity and direction are determined by local environmental conditions. Successional processes are explained as a phenomenon of homeostatic regulation expressed in the interaction of different species and leading to equilibrium at the stage of climax. The models of current deviations of ecosystem variables from their potential state are used for studying mechanisms of regulation in this process. Equations of the model locally linearly reflect the united dynamics of the wood stock for different species groups, i.e. it takes into account both the reason and result of the competition. In order to explore the mechanisms of succession dynamics of the mountain taiga the yield tables were drawn up with indices from forest inventory GIS database for Slyudyanka forestry at north-eastern slope of Khamar-Daban Ridge. The quantitative data analysis is carried out with help of the model of interaction of deciduous, light- and dark-coniferous species, and the basic hypothesis of the successional mechanism realization in mixed forests is tested in different locations.