Chemical Fractionation Of Cu And Zn And Their Impacts On Microbial Properties In Slightly Contaminated Soils

Authors

  • Liu Aiju School of Recourse and Environmental Engineering, Shandong University of Technology, 12 Zhangzhou Road, Zibo 255049,
  • Wang Honghai Zibo entry-exit inspection and quarantine bureau, 63 Liuquan Road, Zibo 255033,
  • Gao Peiling School of Recourse and Environmental Engineering, Shandong University of Technology, 12 Zhangzhou Road, Zibo 255049,
  • Xu Hong-zhi Analysis & Testing Center, Shandong University of Technology, 12 Zhangzhou Road, Zibo 255049,

DOI:

https://doi.org/10.3329/ijarit.v3i1.16045

Keywords:

Chemical Fractionation, Heavy Metals, Microbial Biomass, Soil Enzymes,

Abstract

Chemical fractionation of Cu and Zn in bulk soil and its effects on soil microbial properties were determined in Cu and Zn contaminated soils (Cu: 35.57~46.37 mg·kg-1, Zn: 74.33~127.20 mg·kg-1) sampled from an agricultural field in outskirts of Zibo, China during the month of September, 2011. A sequential extraction technique (SET) was used for metals chemical fractionation analysis in soils and a correlation analysis was applied to determinate the effects of metal on soil microbial properties. Chemical speciation showed that Cu and Zn were mostly present in the residual fraction and their concentrations in the most labile fraction (acid soluble fraction) were the lowest in the investigated soils. However, the correlation analysis indicated that the labile forms of Cu/Zn, such as its acid soluble, reducible or oxidizable fractions, were usually significantly negatively correlated with the tested microbial activities at 0.05 or 0.01 probability levels. These results indicate that the metal labile fractions could exert an inhibitory effect on the soil microbial parameters even in the minor contaminated soils.

Int. J. Agril. Res. Innov. & Tech. 3 (1): 20-25, June, 2013

DOI: http://dx.doi.org/10.3329/ijarit.v3i1.16045

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Published

2013-08-02

How to Cite

Aiju, L., Honghai, W., Peiling, G., & Hong-zhi, X. (2013). Chemical Fractionation Of Cu And Zn And Their Impacts On Microbial Properties In Slightly Contaminated Soils. International Journal of Agricultural Research, Innovation and Technology, 3(1), 20–25. https://doi.org/10.3329/ijarit.v3i1.16045

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