Abstract
In 2022, studies of the species diversity of plant communities, their aboveground mass and the resource-feeding potential of various types of steppes and meadows in the “Tsimlyansky” nature reserve were conducted. The method of vegetation cover mowing (n = 29) in seven types of steppes and meadows determined the aboveground mass of 101 species of herbaceous plants within the ancient Chir landscape of the Don-Tsimlyansk sand massif. The species richness of plant communities varies between (5.7±1.7) – (14.0±1.2) species/0.25 m2 and averages 10.1±1.0 species/0.25 m2. The average share of cereal species in the communities is 23%, and grasses are almost 3 times more – 64%. The total aboveground biomass in 7 types of steppes and meadows varies between (197.4±25.6) – (379.1±92.5) g/m2. The accumulated mort (necro) mass is (152.2±12.5) – (411.9±43.9) g/m2.
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