Keywords:  floodplain ecosystems, phytocenosis, migration, heavy metals, decreasing series, accumulation factors

// Мелиорация. – 2018. – №4(86).– P.63—71

Content of heavy metals in soil and Deschampsietum cespitosa, Trifоlium repens, Caricetum gracilis, Junco-Deschampsiеtum cespitosae, Poo-Festucetum pratensis, Phalaridetum arundinaceae plant associations was studied in flood meadows. Significant differences in the content of heavy metals in the soil and herbage phytocenoses were revealed. The specificity of the content of heavy metals in the soil was established in relation to the plant associations that form on them. The average content of heavy metals in the herbage ranged from 0,01 to 304 mg / kg. The decreasing series in terms of the average content of heavy metals in the herbage can be represented as follows: Мn > Fe > Zn > Cu > Ni > Pb > Co > Cd > Cr. The values of the accumulation coefficient ranged from 0,008 to 19,88.