Methodology for predicting the resistance of North American plants in the Astana Botanical Garden

The analysis and selection of modern methods of introduction prediction was carried out to create a promising list of woody plants of the North America site in the Astana Botanical Garden in Nur-Sultan. Using a system-arealogical approach and interpolation forecasting, botanical nurseries were selected – they are donors of generative and planting material to be included in the collection. 33 taxa or 45% of plants corresponding to winter hardiness in the natural area of the climatic zone of Nur-Sultan were selected using the method of climatic analogues of Mayer and winter hardiness zones. The methodology we chose allowed us to expand by 55% the list of plants that have higher winter hardiness in the cultivated area than in the natural one. A promising list of 80 taxa from 19 families and 34 genera has been compiled.

Plant communities of the Middle Lena in need of protection

The results of the study of rare communities in the middle reaches of the Lena river valley, one of the most floristically rich regions of Yakutia, are presented. There are grow populations of 81 species of vascular plants listed in the regional Red Book. Populations of 35 species are covered by various types of protection. Five populations of endemic plants of the North-East of Russia, 13 species living on the northern limit of their ranges, and 3 endemic plants of the Central Yakutia were not included in protected areas (PAs). The relict steppe communities with Artemisia martjanovii Krasch. ex Poljak., Krascheninnikovia ceratoides (L.) Gueldenst., Hedysarum gmelinii Ledeb., Astragalus lenensis Shemetova, Schaulo et Lomon. are under threat of complete extinction.