The analysis of the flora of the Asteraceae family in North Kazakhstan region

Abstract

The family of the Asters is one of the largest families in the flora of the North Kazakhstan region and is among the ten most important families of the flora. The generic and species composition of the family Asteraceae in the territory of the North Kazakhstan region is presented quite differently. The family is represented by 127 species that are part of 54 genera. Actuality: The study of one of the leading families of higher plants in the flora of the North Kazakhstan region is a very urgent problem, since many species of the family of astroids are part of the phytocenosis and are the main part of the vegetation cover. Regional phytomonitoring has an important role in studying the state of vegetation cover. The aim of the study: To conduct a comparative analysis of the generic and species composition of plants of the Aster family of North Kazakhstan region.Comparative analysis of generic and species composition of plants of Asteraceae family were carried out in 5 districts of North Kazakhstan region. The results of the study showed that the species of this family are the most common in Shal Akyn area - 77 species, Kyzylzhar - 75 species and 65 species in the vicinity of Petropavlovsk and less common in the regions: Mamlut - 50 species, Zhambyl - 47 plant species. According to the task of the study, we conducted a chorological analysis of the Asteraceae family of North Kazakhstan region. In accordance with the modern spread of all types of the examined plants were distributed into 9 geographical groups. The most common groups are: Euro-Siberian group includes-41 species, Eurasian-40 species, European-20 species.In relation to the plants of this family, the mesophytes prevail in the investigated flora of the region to the conditions of moistening (according to the water regime). They make up more than 96 species (77.2%). The other half of the species form xerophytes, which includes 68 species (53.5%). [...]