Экология / Экологический мониторинг

Avdeev Y.M.

Vologda state University, Vologda, Russia

Evaluation of qualitative characteristics

of the phytocenosis

The phytocoenosis is a relatively uniform structured plant community located within the same habitat. Is characterized by a specific system of relationships of plants with each other and with the external environment. The phytocoenosis is the composition of the biocenosis, which, in turn, combined with the environment forms an ecosystem.

Vegetation affects soil properties, microclimate, the composition of fauna, biomass and productivity of ecosystems.

The most important quality characteristic of phytocenosis is its floral sostavlyayuschaya that defines the structure and functions of the community, talking about the environmental conditions of life of the community, its historical stages, the extent and nature of disturbance, etc.

Thus, floristic composition of the phytocoenosis is the totality of all plant species in a plant community.

Floristic composition of the phytocoenosis is inherent in such characteristics as species richness, which describes the total number of species in the phytocoenosis.

Species diversity of phytocenoses – the most important aggregate characteristics and a form of saturation of ecosystems.

In assessing species diversity it is also necessary to take into account the characteristics of the abundance and species composition.