The study of chemical composition on the vegetation installed on tailings

Abstract

This paper is a study on identifying the amount of heavy metals extracted from the sterile, by the main
species of spontaneuse plants, determined as prevailing on the waste dumps from Moldova Noua. Dominance
of plant species ponds was determined using the method developed by Braun-Blanquet (1964) and followed
for two years. The method of atomic absorption spectrophotometry at different wavelengths each chemical
element was determined in part extracted from samples of dried herbs. The results confirmed that species
Salsola kali, Festuca arundinaceea, Medicago falcata and Phragmites australis are the most tolerant plants
to heavy metals, long resisted the sterile. Also, Festuca arundinaceea proved plant hiperacumulatoare the
lead, Medicago falcata and sterile extract a large number of heavy metals, including manganese, zinc, iron,
cadmium, copper and lead in significant amounts.