Content of differentforms of iron and aluminum in the solod soil

Abstract

The objective of the study treated in this paper has been to confirm the presence of eluvial-illuvial processes on the basis of the distribution of different forms of iron and aluminum along the soil profiles classified as the solod soil in the soil map of the Vojvodina Province R=1:50 000. A detailed study of the different forms of Fe and Al has clearly differentiated the total contents of Fe and Al in the eluvial and illuvial horizons in all soil profiles (i.e. lower contents of these two elements in the Aoh, Eg and Aoh/Eg horizons compared with the illuvial Btg and Btg, na horizons). The contents of available forms of Fe and Al in surface horizons were high and toxic in all soil profiles studied. Such contents are characteristic for acid and poorly aerated soils which have low values of oxidoreducing potential and they indicate that degradation processes are present in these soils.

Cilj istraživanja prikazanih u ovom radu je da se na osnovu distribucije različitih oblika gvožđa i aluminijuma po dubini profila zemljišta, na lokalitetima koja su na pedološkoj karti Vojvodine R= 1:50 000, označena kao solođi, potvrdi pretpostavka o postojanju eluvijalno-iluvijalnih procesa kod ovog tipa zemljišta. Utvrđena je jasna diferencijacija ukupnog sadržaja Fe i Al između eluvijalnih i iluvijalnih horizonata kod svih ispitivanih profila (tj. manji sadržaj ovih elemenata u Aoh, Eg i Aoh/Eg horizontima u odnosu na iluvijalne Btg i Btg, na horizonte), dok je sadržaj pristupačnih oblika Fe i Al u površinskim horizontima visok i toksičan. Ovakav sadržaj ispitivanih elemenata, karakterističan je za kisela i slabo aerisana zemljišta sa niskim vrednostima oksidoredukcionog potencijala i ukazuje na degradacione procese u ispitivanim zemljištima.