Home – Home – Jornals – Flora and Vegetation of Asian Russia 2022 number 3

Intermountain basins in Khakassia and southern part of the Krasnoyarsky Krai represent an interesting steppe region of Russia. This territory extends in the latitudinal direction for more than 350 km - from the Arga ridge in the north to the piedmonts of the Western Sayan in the south. As in many mountainous steppe and forest-steppe regions, four environmental gradients are responsible for vegetation patterns: moisture, stoniness, salinity, and sand content in soils. The high diversity of habitats is the reason for the high diversity of plant communities and species, among which there are many endemics. In numerous publications, since 1998, 22 associations have been given for the studied territory. Ecological analysis of these associations using plant indicator values (Korolyuk, 2006) showed that some of them do not differ in position on the main gradients. This requires an explanation and analysis of differences in floristic composition of syntaxa. The purpose of the work is to revise current syntaxonomical scheme of Nazarovsko-Minusinskaya intermountain depression using formalized methods or relevés analysis.