FEATURES OF MIGRATION AND ACCUMULATION OF HEAVY METALS IN SYSTEM "SOIL - PLANT - UNPAIRED THE SILKWORM" IN THE CONDITIONS OF ZAURALYE
The maintenance of heavy metals (HМ) (total forms) in soils of birch woods Kamensk-Ural of area of Sverdlovsk area, birch leaves and imago an unpaired silkworm, in the centres of mass reproduction geographical population of this phytophage is investigated. On separate HМ the maintenance exceeded maximum concentration limit. On the basis of the received results factors of biological absorption of metals (FBA) are counted up by an unpaired silkworm. As have shown the results different HМ considerably differ among themselves on this parametre. So, most intensively in fabrics imago there is accumulation Cu (FBA =20,305), Fe (FBA=15,52) and Zn (FBA=12,36). This group of elements is characterised by the highest FBA. Was FBA Ni (КБП=9,93) slightly more low. Mn, on the contrary, it was characterised by very low indicator of biological absorption. It is supposed that mechanisms of cellular protection against heavy metals at an unpaired silkworm function selectively.