It was found that a regular growth in the above-ground phytomass occurs during autogenic
succession, which is approximated by logarithmic dependence with high reliability indices. External, including anthropogenic, effects on the process of succession lead to a decrease in the rate
of phytomass growth. Besides, the rate of phytomass changes is influenced by endo-ecogenesis
caused by various plant species, entering the ecosystem at certain stages of succession. The
above-ground phytomass portioning behaviour makes it possible to use it to create a unified indicator of dynamics. Each plant species can be only within certain indicators of the phytomass of
their plant communities. At the same time, there is a normal distribution of the projective cover value. This allows us to work out synphytoindication methods for determining the dynamics indicato
