Nikolin Е.G., Gogoleva P.А., Danilova N.S., Isaev А.P., Borisova S.Z., Egorova А.А., Postnikova E.P., Sosina N.K., Troeva Е.I., Bobrov А.А., Nogovitsyn P.R., Afanasieva Е.А., Gromova А.Д., Egorova N.N., Kardashevskaya V.Е., Semenova V.V., Sleptsova А.P., Terentyeva М.P., Filippova V.А., Chemeris Е.V., Cherosov М.М., Yakubov V.V.
Botanicheskii zhurnal 2022; 107(12): 1156–1165
Erkeeni, the left-bank valley of the middle reaches of the Lena River, is located between the city of Pokrovsk (Khangalassky ulus of the Republic of Sakha (Yakutia)) and Tabaginsky Cape (urban area of Yakutsk). Together with adjacent islands, it covers an area of about 200 km2. This is one of the most densely populated territories of Yakutia, with the total population about 7 thousand people. The most of the land is agricultural. The area has been extensively studied by botanists for a long time, but a cumulative list of its plants was not available to date and is given for the first time. The territory under study belongs to the Central Yakut floristic district of the Tunguska-Lena boreal province. The flora of the Erkeeni Valley comprises 566 species, 7 subspecies, 1 variety and 2 forms, united into 297 genera and 82 families. 13 species are alien. As a result of an increased anthropogenic impact on natural sites, a significant share of weeds was revealed in the flora (132 species – 23%). This includes 62 species (11%) of aggressive weed elements of the Yakutian flora, with 9 species being listed in the Black Data Book of Siberia, and 26 species in the Black Data Book of the Far Eastern Federal District. The potential of useful plants in Erkeeni Valley is quite high (225 species – 40% of the flora), which can contribute to maintaining the economy of the rural population. The distribution of 22 species listed in the regional Red Data Book of Yakutia has been revealed. In order to preserve natural diversity of the plants and the possibilities of their economic use, it is recommended to optimize an anthropogenic load on natural landscapes of the territory.
