Relations between some soil parameters and available contents of cadmium, lead, copper and zinc
2000
Makovnikova, J. (Vyskumny Ustav Podoznalectva a Ochrany Pody, Banska Bystrica (Slovak Republic))
A methodological process of selecting sequential extraction according to Zeien, Brummer has been used for a file of 35 soils representing 13 soil types to evaluate bonds of Cd, Pb, Cu and Zn considering particular soil components. A mobile fraction, an easily mobile fraction, occluded on Mn oxides and coupled with organic mass, which both represent potentially biovailable amount of metal has decreased in the order: Cd (76.89 %), Pb (49.41 %), Cu (32.94 %), and Zn (32.73 % of total content). High rate of Cd, Pb and Zn in the mobile fraction is contained in Podzols and Dystric Cambisol, low rate is characteristic for Haplic Chernozem, Rendzina and Chernozem, what is in accordance with buffering potential of particular soil types to Cd, Pb and Zn. In the course of regression relations of available forms of heavy metals and selected soil parameters testing, we have determined statistically important interactions between Cd, Pb, Cu, Zn and soil pH value, organic mass content and quality and total content of metals, as well as prediction models for availability contents of metals in soils.
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