TAXONOMIC STRUCTURE OF THE FLORA OF THE LOWER AMUR REGION // BSU bulletin. Biology, geography. - 2021. №4. . - С. 16-28.

TAXONOMIC STRUCTURE OF THE FLORA OF THE LOWER AMUR REGION

DOI: 10.18101/2587-7143-2021-4-16-28 UDK: 581.9

The article presents an analysis of the taxonomic structure of the flora of vascular plants in the Lower Amur region. The flora of the Lower Amur Region includes 2240 spe- cies from 760 genera and 158 families, which is 80% of the species composition of the Rus- sian part of the River Amur basin. The native flora unites 1801 species from 602 genera and 152 families. The adventive complex is represented by 439 species from 256 genera and 57 families, which is 19.6% of the natural flora. The species diversity, quantitative characteris- tics of the aboriginal and adventive flora of vascular plants in the Lower Amur region are comparable to those of the southern limit of the distribution of taiga ecosystems in the Hol- arctic. We have determined the place of the flora of reservoirs of the Lower Amur in the flo- ra system of the River Amur basin. The spectrum of the leading families and genera in terms of the number of species corresponds to the geographical position of the territory (leading position in the family spectrum of Asteraceae, Cyperaceae, Poaceae, Ranunculaceae, Rosaceae, Polygonaceae, in the generic spectrum — Carex, Artemisia, Salix, Viola, Saxi- fraga, Poa, Saussurea). The specificity of the flora is determined by the combination of el- ements of the boreal and subboreal flora of East Asia.

flora, species, genus, family, taxonomic spectrum, species diversity, the Lower Amur region.