IMPACT OF ACIDIFICATION ON POLLUTANTS FATE AND SOIL FILTRATION FUNCTION

Jarmila Makovniková, Radoslava Kanianska, Miriam Kizeková

Abstract


The objective of this paper was to investigate the effects of simulated acid load on the fate of inorganic pollutants (Cd, Pb), soil sorption potential, soil filtration func-tion. We made use of a short-term acidification pot experiment with grown plant of spring barley cultivated at 4 different soil types (Fluvisol, Cambisol, Stagnosol, Podzol). The potential of soil filtration was evaluated according to the Eq.: [Soil filtration function]=[Potential of soil sorbents]+[Potential of total content of inor-ganic pollutants]. Potential of soil sorbents (PSS) is defined by qualitative (pH, or-ganic matter quality - A400/600) and quantitative factors (carbon content-Cox, humus layer thickness-H) according to the Eq.:[PSS]=F(pH)+F(A465/665)+F(Cox)*F(H). Acid load significantly influenced soil sorption potential and thus affected increase in Cd and Pb mobility what was reflected in their transfer into the plants. Results of soil filtration function showed significant change of filtration function in Cambisol.


Keywords


acidification; soil reaction; Cd; Pb; soil filtration function

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DOI: 10.6092/issn.2281-4485/4555

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