Effect of different soil conditions on selected heavy metal accumulation by Salix viminalis tissues.
This investigation was undertaken to determine efficiency of selected heavy metal ions by different Salix viminalis tissues in relation to local physicochemical parameters. Seven heavy metals (Cd, Co, Cr, Cu, Ni, Pb and Zn) were analyzed in 5 types of tissues (bark, root, shoots, leaves and petioles). The results presented here show different accumulation rates of tested metals in individual tissues depending on location and soil characteristics. A similar trend in the accumulation of elements in leaves and petioles was observed except for zinc and chromium. The quantities of heavy metals in shoots indicate their limited migration in plant (especially lead and cadmium). In contrast high levels of zinc in leaves were observed, which suggests strong migration of this metal to upper parts of plants. Analyzed willows were characterized by selective accumulation of ions of investigated heavy metals, with different metal migration abilities depending on location (soil properties e.g. limited migration of lead and intensive migration of cadmium and zinc to aboveground organs). A correlation between metal accumulation in the tissue and soil factors (pH, redox potential, total organic carbon) was observed. The total accumulation and translocation of heavy metal ions (especially chromium) depend on soil parameters and to some extent wood structure (cellulose, lignin).
Mleczek
Mirosław
M
Department of Chemistry, Poznan University of Life Sciences, Poznan, Poland. mirekmm@up.poznan.pl
Magdziak
Zuzanna
Z
Rissmann
Iwona
I
Golinski
Piotr
P
D001673:Biodegradation, Environmental; D002244:Carbon / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D019216:Metals, Heavy / Q000493:pharmacokinetics*; D024301:Plant Bark / Q000378:metabolism; D018515:Plant Leaves / Q000378:metabolism; D018517:Plant Roots / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D032108:Salix / Q000378:metabolism*; D012987:Soil / Q000032:analysis*
D019216:Metals, Heavy; D012987:Soil; D002244:Carbon