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SPECIES DIVERSITY OF THE NATURAL VEGETATION ON THE SOUTHERN SLOPES OF THE CENTRAL RUSSIAN UPLAND AND ITS IMPACT ON PRODUCTIVITY OF PLANT COMMUNITIES

Cherniavskih V.I, Tokhtar V.K, Dumacheva E.V, Degtiar O.V
The aim of the research was the evaluation of the productivity and the ability of the natural soil-protection resources located on sloping lands within the larger ravine-joist complexes at present stage. It was established that due to the significant reduction of pastures the above-ground phytomass of mentioned resources can increase up to 896 – 1023 g/m2 depending on the species and location. As for natural resources with greater species richness it was found greater accumulation of root mass and an increase in the ratio of underground and above-ground mass. This leads to the increase in the erosion resistance of these lands and to the accumulation of organic matter. The increase in species richness (α-diversity - the number of species per 1 m2) does not lead to the proportional increase in aboveground productivity of steppe and meadow-steppe resources on the slopes within the southern Central Russian Upland. While the increase in the number of species within the entire territories and the ravine-joist complexes (β – diversity) leads to the increase in the productivity of the natural resources as a whole.

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Чернявских В.И, Тохтарь В.К, Думачева Е.В, Дегтярь О.В ВИДОВОЕ РАЗНООБРАЗИЕ ЕСТЕСТВЕННОЙ РАСТИТЕЛЬНОСТИ НА СКЛОНАХ ЮГА СРЕДНЕРУССКОЙ ВОЗВЫШЕННОСТИ И ЕГО ВЛИЯНИЕ НА ПРОДУКТИВНОСТЬ СООБЩЕСТВ // Научное обозрение. Сельскохозяйственные науки. 2020. № 1. С. 40-41;
URL: https://science-agriculture.ru/en/article/view?id=58 (дата обращения: 18.07.2026).