Premium
Changes of Al and Heavy Metal Concentrations in Slovak Soils During the Last 25 Years
Author(s) -
Berghofer Ralf,
Wilcke Wolfgang,
Linkeš Vladimír,
Nestroy Otmar,
Zech Wolfgang
Publication year - 1997
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19971600406
Subject(s) - chemistry , soil water , metal , leaching (pedology) , zinc , environmental chemistry , cadmium , geology , soil science , organic chemistry
The objective of this study was to investigate changes of total concentrations and various extract‐defined Al and heavy metal fractions in Slovak agricultural soils during the last 25 years. We compared 7 stored soil samples collected between 1966 and 1970 with samples collected in 1994 at the same sites. Seven fractions of Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn were determined with a sequential extraction procedure in all samples. Total concentrations of Cd, Zn, Mn, Ni, and Cu were lower in the 1994 samples; those of Al, Fe, Pb, and Cr were higher. Based on the initial concentrations, the average total concentration changes were: Cd(‐10,3%)