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[1]ZHANG Chen,SHI Xue-yi,MA Hua-wei,et al.Assessment on Ecological Risk of Soil Heavy Metal Pollution in Reclaimed Village of Coal Base[J].Research of Soil and Water Conservation,2014,21(05):277-284.

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Assessment on Ecological Risk of Soil Heavy Metal Pollution in Reclaimed Village of Coal Base

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 277-284 Column: Public date: 2014-10-28

Title:: Assessment on Ecological Risk of Soil Heavy Metal Pollution in Reclaimed Village of Coal Base

Author(s):: ZHANG Chen, SHI Xue-yi, MA Hua-wei, ZHANG Mei-rong, WANG Jing; College of Land Science and Technology, China University of Geosciences, Beijing 100083, China

Keywords:: reclaimed village; pollution of heavy metals; potential ecological risk index; ecological risk

CLC:: X53

DOI:: -

Abstract:: Assessment on ecological risk of soil heavy metal pollution in reclaimed village of coal base could point out particular substance during the process of village reclamation, which will attach importance to reduce the land contamination caused by coal mining and improve the quality of arable land after village reclamation. A reclaimed village in Zezhou County of Shanxi Province was chosen as the study area. Based on analyzing the heavy metal content of the soil in this area, the background value of soil heavy metals in Shanxi was used as references and the method of potential ecological risk index was adopted to assess the condition of soil heavy pollution. The results were shown as follows: (1) the integrated contamination degree of different depth varied from 6.05 to 14.92 in reclaimed village of coal base, indicating that the average degree of pollution was at middle level; (2) in terms of single element, the average pollution index of various heavy metals was followed as Hg > Pb > As > Cd > Cr, and the potential ecological risk in half of the samples reached the moderate level, which also suggested that Hg pollution level was high and its potential ecological risk index varied from 75.9 to 275.19; (3) the potential ecological risk of Hg achieved a higher degree and it needed to be controlled in the process of reclamation. Assessment on ecological risk of soil heavy metal pollution in reclaimed village of coal base could help master characteristics and distribution of heavy metal pollution in soil and provide a guidance for controlling and remedying the heavy metal pollution in arable land after reclamation, which will make a difference on sustainable use of land use.

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