Evaluation of Soil Fertility and Heavy Metal Contamination in Abandoned Regions of Tin Mine,China

DOI

10.2991/ifeesm-15.2015.237How to use a DOI?

Keywords

Mine tailings; Soil fertility; Heavy metal contamination; Contamination assessment

Abstract

Based on determination of the contents of soil nutrients elements and heavy metals for the four tin mine tailings (Niubahuang, Laochang, Kafang and Southern) in Gejiu, the heavy metal pollution of four tin mine tailings were assessed with the single contamination index method, the comprehensive contamination index method, the geoaccumulation index method and the potential ecological risk index method. The results showed that:(1)Soil pH of four tin mine tailings was more than 7.5, for alkaline soil. The soil fertility of four tin mine tailings was poor, the soil organic matter soil fertility levels were between VI level, total N P K and available P index of soil fertility level basically in III ~ VI, soil fertility index of K available were grade II, the soil fertility order: the Laochang > the Kafang > the Southern > the Niu banghuang. (2)In the four tin mine tailings, the average contents of Mn, Cu, Pb, Cd and Zn were 5700.98mg/kg, 2041.19mg/kg, 7164.72mg/kg, 21.33mg/kg and 2146.81mg/kg. According to the mean size sorting are: Pb Mn Zn Cu Cd. According to the single contamination index and the comprehensive contamination index , all of heavy metal contamination grades were high pollution. According to the Hankanson potential ecological risk index evaluation results: Mn and Zn minor ecological risk, Cu, Pb and Ca for strong ecological risk. Cumulative Index to evaluate the results: Mn pollution level was 3, Cu, Pb, Cd contamination level were 6, Zn pollution level was 4 to 5.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jinping Shao
AU  - Xiangbin Song
AU  - Guixiang Li
AU  - Qun Zhang
AU  - Xiangjing Fang
AU  - Liping He
PY  - 2015/09
DA  - 2015/09
TI  - Evaluation of Soil Fertility and Heavy Metal Contamination in Abandoned Regions of Tin Mine,China
BT  - Proceedings of the 2015 International Forum on Energy, Environment Science and Materials
PB  - Atlantis Press
SP  - 1298
EP  - 1306
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-15.2015.237
DO  - 10.2991/ifeesm-15.2015.237
ID  - Shao2015/09
ER  -