The geographical structure of the flora of the Eastern Polesye vascular plants

Аннотация

The basis of the flora of the vascular plants of the Eastern Polesye is European, EuroWest-Asian, Euro-Asian and circumpolar species, which are distributed mainly in the temperate and submeridional zones of the Holarctic. The development of the spontaneous flora is in the direction of its replenishment with the adventive species of the American and Asian origin through the primary naturalization and active invasion. The 43 species are located in the investigated region on the southern boundary of the habitat, 13 species are on the northern
border, 8 are on the eastern one. To a certain extent, an increase in the number of physicogeographical regions occurs in the Eastern Polesye. The main ways of modern changes in the borders of the habitats and species migration in the Eastern Polesye are the regressive northeastern, progressive eastern, northwestern, western and northern.