COENOMORPHS OF TAMBOV PROVINCE FLORA AND BIOTOPES’ PHYTOINDICATION
The A.L. Belgard system of vascular plants species of coenomorphs as indicators of biotopes is described for 1334 species of vascular plants of Tambov province flora. Standardized phytoindicational scales by the 12 environmental factors are used. Discriminate analysis has shown high accuracy of classification: a great part of coenomorphs is accurately determined in scales. The principal factors of species discrimination by the coenomorphs are (in descending order of significance): minimum values of soil moisture, the poverty of the soil solution of salts and the minimum values of illumination intensity in the habitats. The ordination of coenomorphs has determined the rows of biotope and coenotic substitution: soil moisture, illumination intensity, soil salt and acidity regimes. These rows correspond to the zonal factors of habitats’ allocation. Intervals of coenomorphs’ optimums in phytometer scales, which characterized the coenomorphs as phytoindicators of biotopes, are detected.