PMID: 16612897Apr 15, 2006Paper

Accumulation and chemical fractionation of heavy metals in andisols after a different, 6-year fertilization management

Environmental Science and Pollution Research International
Bingzi ZhaoYasuo Ozaki

Abstract

Andisols are widespread in Japan and have some special properties such as high anion exchange capacity, low bulk density, and high organic matter content, which might influence the accumulation or chemical fractionation of heavy metals. However, few such data exist in Japanese andisols. The primary objective of this study was to investigate the distribution and chemical fractions of Cu, Zn, Ni, and Cr in the soil profiles and subsequently to assess their potential environmental hazard. Soil samples were taken from a field experiment conducted on Japanese andisols, which had received either swine compost or chemical fertilizers for 6 years. Concentrations of Cu, Zn, Ni, and Cr were determined for all of the obtained extract solutions by ICP-AES. Considerably higher total concentrations of Cu and Zn were observed in the top 20 cm layer of the compost-amended soil, relative to the unfertilized soil, while chemical fertilizers had little effect. Application of the swine compost increased the concentrations of Cu and Zn, but not Ni and Cr, in all fractions in the top 20 cm layer. The greatest increase in the organically bound fraction (OM) Cu and dilute acid-exchangeable fraction (DAEXCH) Zn was observed. This suggests that Cu and Z...Continue Reading

Citations

May 26, 2015·Environmental Science and Pollution Research International·Shiwei ZhouNan Sun
Apr 8, 2019·Environmental Monitoring and Assessment·Ibrahim SaidAndrew S Hursthouse
Dec 6, 2012·Environmental Science and Pollution Research International·Yannick Mamindy-PajanyEmmanuel Guillon
May 6, 2014·Environmental Science and Pollution Research International·Qingyun WangHailin Zhang

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