Abstract
Monitoring of the species of dry steppe biocenosis on the right bank of the Aygurka River in the Stavropol Territory showed that there are 151 species of herbaceous plants belonging to 112 genera from 32 families, of which 11 are rare species of the regional Red Data Books. The projective cover of the biocenosis was 50-90%, with a plant height of 10-60 cm. In the study area, anthropogenic load (pasture farming, agriculture) led to the impoverishment and destruction of natural zonal steppes. There is a change in the positions of the zonal dominants of perennials to one-biennials. The share of fodder plants decreases to 48%, medicinal plants - 11%, melliferous plants - 7%, ruderal plants - 13%, and the share of synanthropic vegetation increases to 21%. There is not a large number of shrubs and semi-shrubs (4%), but there is no tendency towards afforestation. Cenopopulations of rare plants, mainly with a full age spectrum.
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