Comprehensive assessment of a flora and a productivity of green planting in the city of Abakan

Khakas State University, 655000 Abakan, the Russian Federation

^* Corresponding author: biosara@mail.ru

Abstract

The article provides information about the level of species diversity, biological and ecological composition, the dynamic of the vegetation productivity of a green planting in the city of Abakan (the steppe zone). The inventory of the flora revealed 288 species of higher vascular plants from 59 families and 183 genera. The basis of flora is the angiosperms, including 57 families (96.6 %), 179 genera (97.8 %), 282 species (97.9 %). The leading positions belong to the families Asteraceae (11.8 %), Poaceae and Rosaceae (10.8 %), Fabaceae (7.3 %). The most important genera in the flora were boreal ones − Carex, Artemisia (2.8 %), Potentilla (1.7 %). The ecological analysis showed the predominance of mesophytes (45.5 %). Perennial plants with clustered fleshy roots and short- rhizomatous ones (21.5 %) were a main biomorph. The analysis of the primary production of urban vegetation according to Terra MODIS data from 2000 to 2018 was carried out. The highest seasonal growth rates observed in 2001 and 2007, and the lowest ones were in 2004 and 2008. The average annual growth rates were 115±9 % for May, 107±5 % for June, 107±5 % for July, 119±14 % for July, and 120±11 % for August. The positive trend in the productivity of urban vegetation was established using the series criteria.