FLORA OF THE AIYRTAU DISTRICT OF THE NORTH KAZAKHSTAN REGION: SPECIES COMPOSITION, LIFE FORMS AND ECOLOGICAL GROUPS OF PLANTS

Abstract

The plants occurring in the flora of the Aiyrtau district of the North Kazakhstan region were selected as the object of research. During the study, it was found that the flora of the Aiyrtau district of the North Kazakhstan region consists of 80 plant species belonging to 22 genera and 60 families. Families, such as Asteraceae Bercht., Amaranthaceae Juss., Fabaceae Lindl., Plantaginaceae Juss., and Poaceae Barnhart., prevailed according to the number of species. Ecological analysis of plants has shown that mesophytes, mesoxerophytes, and hygromesophytes predominate. The classification of plant species by life forms revealed semi-shrubs – 2 species, perennial herbaceous plants – 53 species, annual herbaceous plants – 20 species, and biennial herbaceous plants – 5 species. According to C. Raunkiaer’s classification, the following groups of plants were identified: hemicryptophytes (50 species; 62.5%), therophytes (11 species; 13.75%), cryptophytes (16 species; 20%), chamaephytes (1 species; 1.25%) and nanophanerophytes (2 species; 2.5%). The results of the research work allow for supplementing the data on the flora of the North Kazakhstan region, specifically the Aiyrtau district.

Key words: flora, biodiversity, systematic analysis, species composition, life forms, ecological groups of plants.