Formy żelaza i pierwiastków śladowych w silnie kwaśnych glebach bielicowych Gór Izerskich

Forms of Fe, Pb, Zn and Cu were determined by the means of sequential extraction in podzol profiles developed from granitogneiss in the Izerskie Mountains. Seven metal fractions were separated. Organic matter supply to soil profile was found to be a crucial factor determining the total concentration of lead in soil horizons. The main forms of copper and zinc were the ones occluded in Fe oxides and their total concentration increased with the depth within the soils profiles, which proved the considerable mobility of these elements. The results obtained from the study show that the total amount of trace elements in soil genetic horizons depends on the weathering process of primary and secondary soil minerals, organic matter input as well as the airborne contaminants, and their distribution in soil profile is modified by strongly acidic soil reaction