[1]SHEN Mengwei,CHEN Wende,LI Zhi,et al.Evaluation of Heavy Metal Pollution of Soil and Plant Optimal Screening in Xuejiping-Chundu Porphyry Cooper Mine[J].Research of Soil and Water Conservation,2015,22(04):214-220.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 04
Page number:
214-220
Column:
Public date:
2015-08-28
- Title:
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Evaluation of Heavy Metal Pollution of Soil and Plant Optimal Screening in Xuejiping-Chundu Porphyry Cooper Mine
- Author(s):
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SHEN Mengwei1, CHEN Wende1, LI Zhi1, HE Zhengwei2
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1. College of Tourism and Urban Rural Planning, Chengdu University of Technology, Chengdu 610059, China;
2. College of Earth Science, Chengdu University of Technology, Chengdu 610059, China
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- Keywords:
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soil; heavy metal; geo-accumulation index; potential ecological risk index; plant optimization; Xuejiping-Chundu mine
- CLC:
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X53
- DOI:
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- Abstract:
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We tested the soil and plant leaves taken from 25 sample plots in the main mine of Xuejiping-Chundu porphyry cooper mine deposit, Shangri-La County. Then we used the geo-accumulation index and the potential ecological risk index to evaluate the heavy metal pollution of soil and used bioaccumulation factor to screen the fine plants. The results could be used as the basis of soil improvement and remediation in the future. The rank(from high to low) of the heavy metals in soils is Pb > As > Cu > Hg > Cr > Zn > Cd. The rank(from strong to weak) of single metal element risk of potential ecological harm degree is Hg(98.7) > Pb(28.2) > As(21.1) > Cd(16.6) > Cu(14.6) > Cr(2.1) > Zn(1.0). In general, the soil was mainly polluted by Pb, Cu, Hg, and As. According to the mining area of 6 kinds of typical plants for heavy metal accumulation capability,we advised to choose Pratia nummularia as the pioneer plant and the plant community with Rhododendron simsii,Pinus yunnanensis,Quercus semicarpifolia as the remediation pioneer plant community of polluted mine soil.