Yield and ontogenetic structure of meadow ecosystems in the floodplain of the Sozh river in Chechersk district, Gomel region

The article presents data on the yield and ontogenetic structure of dominant species of meadow ecosystems in the floodplain of the Sozh river in Chechersk district, Gomel region. Five meadow ecosystems have been studied. The aim of the study was to reveal the yield and ontogenetic structure of the dominant species of the meadow ecosystems in the floodplain of the Sozh river. Geobotanical, ecological, floristic, radiological and agrochemical methods have been used in the research. It was established that soils of three meadow ecosystems (e.i. Poetum angustifoliae, Agrostio vinealis - Calamagrostietum epigeios, Caricetum gracilis) are similar to neutral, while the soils of Deschampsietum cespitosae and Poo - Festucetum pratensis associations are slightly acidic. The soils have low amount of mobile potassium, while the content of mobile phosphorus is medium. The studied soils are characterized by a low content of organic matter. The highest yield was recorded in the Caricetum gracilis association (3...