Regression model for prediction availability of essential heavy metals in soils (CROSBI ID 570692)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lončarić, Zdenko ; Popović, Brigita ; Karalić, Krunoslav ; Rékási, Márk ; Kovačević, Vlado
engleski
Regression model for prediction availability of essential heavy metals in soils
The aim of paper was to compare relationshipsof total and plant available essential heavy metals in soils considering soil acidity and humus impacts. Regression models should provide additional data (EDTA extractable fraction) from available data (heavy metal total content, soil pH). The 60 soil samples were analysed for pH, humus, phosphorus, potassium, and additionally for essential heavy metals (Fe, Mn, Zn, Cu, Ni) by extraction by aqua regia and by ethylenediaminetetraacetic acid (EDTA). The heavy metal with highest total content was iron, then manganese, zinc, nickel, and copper regardless of soil pH. The order of EDTA- extracted elements changed with copper jumping from last to third place, but the percentage of total content extracted by EDTA was quite opposite: Cu, Ni, Zn, Mn, and Fe. Soil pH impacted on EDTAextractable fraction and the regression models can predict the EDTA- extractable fraction of Zn, Cu and Ni with acceptable average errors, but not for Fe and Mn. The obligate input data for models are total soil content of certain heavy metal and pH. Model errors decreased using humus content as additional input data. The lowest model errors were for copper in acid soils and nickel in calcareous soils.
aqua regia ; EDTA ; iron ; manganese ; zinc ; copper ; nickel
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
92-95.
2010.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 19th World Congress of Soil Science: Soil Solutions for a Changing World
Gilkes, Robert J. ; Prakongkep, Nattaporn
Brisbane: IUSS (International Union of Soil Science)
978-0-646-53783-2
Podaci o skupu
19th World Congress of Soil Science: Soil Solutions for a Changing World
poster
01.08.2010-06.08.2010
Brisbane, Australija