ACCUMULATION OF HEAVY METALS IN VICIA SPP. SPECIES HARVESTED FROM THE PERMANENT MEADOWS IN THE COPȘA MICĂ AREA, SIBIU COUNTY

Abstract

Copșa Mică is one of the most famous historically polluted areas in the country.
This paper shows the accumulation of heavy metals (Cd, Pb, Zn and Cu) from soil in vetch plants (Vicia spp.) from permanent meadows in Copșa Mică area, Sibiu County.
The estimation of the results is based on a set of data (n=14) collected from permanent grasslands located at different distances from the pollution source.
The value of the linear correlation coefficient between the total cadmium content and the mobile cadmium content in the soil and in the plant is statistically significantly different from zero indicating a close correlation between the variables. In addition, at total lead content, simple power regressions were found to be the best for estimating the accumulation of these elements in pea plants. And for total zinc and copper, the value of the linear correlation coefficient is not significantly different from zero, indicating that the estimation of zinc and copper accumulation cannot be described by simple power regressions.
The results of this study are important for estimating the accumulation of heavy metals in the vegetation of permanent grasslands, which are consumed by livestock in the area.