Geochemical Characteristics of Trace Elements in Argillans of Alfisols in Central China
作者： Li HUANG , Fan LIU , Wen-Feng TAN , Ming-Kuang WANG
DOI: 10.1016/S1002-0160(15)30009-6
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摘要: Abstract The relationships between the basic properties and trace elements in soil argillans corresponding matrix soils were studied by sampling from B horizons of 26 Alfisols croplands subtropical area Central China. (K, Na, Ca, Mg, Mn, Co, Cu, Cr, Cd, Li, Mo, Ni, Pb, Ti, V, Zn) extracted acid digestion their contents measured using inductively coupled plasma optical emission spectrometry (ICP-OES). mean clay organic matter approximately 1.1 1.3 times greater than those soils, respectively. pH values P2O5 bases (K2O, Na2O, CaO, MgO) higher soils. V enriched argillans. Correlation coefficients factor analyses showed that Zn bound with phyllosilicates manganese oxides (Mn-oxides) Cr Pb mainly associated iron (Fe-oxides), while Ni was Mn-oxides. chiefly phyllosilicates, but Mo rarely In contrast, Co Fe-oxides, existed to Fe-oxides. matter. results this study suggest clays, matter, minerals dominate illuviation Alfisols. Argillans might be active interfaces elemental exchange nutrient supply cropland
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