JGIS  Vol.4 No.1 , January 2012
Heavy Metals’ Spatial Distribution Characteristics in a Copper Mining Area of Zhejiang Province
ABSTRACT
The spatial distribution characteristics of six heavy metals and metalloid in soil of Zhuji Lipu copper mining area, Zhejiang Province, was studied by using geostatistics approaches combined with GIS. These elements included Pb, As, Cr, Cu, Zn and Ni. The statistical analyses showed that concentrations of these elements were lognormal distribution. Concentrations of Pb, As, Cu, Zn and Ni were strongly correlated with each other indicating that these elements in soils may be from the same pollution source. However, accumulation of Cr was unique with its geometric mean being close to that in the control soil. This indicates that Cr content was mainly influenced by soil factors. The Kriging method was applied to estimate the unobserved points. The Kriging interpolation maps reflected significant spatial distribution of these elements as influenced by both pollution and geological factors. The present study indicated that GIS based geostatistics method could accurately analyze the spatial variation of heavy metals and metalloid in the mining area. Overall, higher concentrations of heavy metals and metalloid were found in the center of both the north and south sides. The content of copper in the south was significantly higher than that in the north due to paddy field land uses. In addition, the terrain of four terraces tilted to the center and the broad irrigation accident occurred in the 4th trench in the south of sampling area were also contributed to the higher concentrations of these elements.

Cite this paper
H. Sun, J. Li and X. Mao, "Heavy Metals’ Spatial Distribution Characteristics in a Copper Mining Area of Zhejiang Province," Journal of Geographic Information System, Vol. 4 No. 1, 2012, pp. 46-54. doi: 10.4236/jgis.2012.41007.
References
[1]   J. M. Shu, J. J. Wang and X. C. Liu, “Ecological Restoration of Mining Wasted Lands,” China Population, Resource and Environment, Vol. 8, No. 3, 1998, pp. 72-75.

[2]   M. K. Zhang and Z. X. Ke, “Copper and Zinc Enrichment in Different Size Fraction of Organic Matter from Polluted Soils,” Pedosphere, Vol. 14, No. 1, 2004, pp. 27-36.

[3]   H. M. Chen, “Heavy Metals Pollution in Soil-Plant System,” Science Press, Beijing, 1996, pp. 1-14.

[4]   Y. J. He and L. X. Zhu, “China’s Mineral Resources,” Shanghai Education Press, Shanghai, 1987, pp. 219-220.

[5]   L. Gao, W. M. Zhang and X. H. Yang, “Studies on the Issues of Modern Ecology: The Rectification of Nonferrous Metals Industrial Environment and the Reclamation of Mine Land,” China Science and Technology Press, Beijing, 1996, pp. 572-582.

[6]   C. Tu, C. R. Zheng and H. M. Chen, “The Current Status of Soil-Plant System in Copper Mine Tailings,” Acta Pedologica Sinica, Vol. 37, No. 2, 2000, pp. 135-143.

[7]   Z. M. Gao, “Ecological Research on the Pollution of Soil- Plant System,” China Science and Technology Press, Beijing, 1986.

[8]   Institute of Soil Science, “Analysis of Soil Physical and Chemical Properties,” Shanghai Scientific and Technical Publishers, Shanghai, 1978.

[9]   T. M. Burgess and R. Webster, “Optimal Interpolation and Isarithmic Mapping of Soil Properties. I. The Semi- Variogram and Punctual Kriging,” Journal of Soil Science, Vol. 31, No. 2, 1980, pp. 315-331. doi:10.1111/j.1365-2389.1980.tb02084.x

[10]   P. Goovaerts “Geostatistics in Soil Science: State-of-the- Art and Perspectives,” Geodema, Vol. 89, No. 1-2, 1999, pp. 1-45. doi:10.1016/S0016-7061(98)00078-0

[11]   H. C. Guo, “Land Restoration in China,” Acta Ecologica Sinica, Vol. 10, No. 1, 1990, pp. 24-26.

[12]   C. S. Zhang, S. Zhang and J. B. He, “Spatial Distribution Characteristics of Heavy Metals in the Sediments of Yangtze River System-Geostatistics Method,” Acta Geogra- phica Sinica, Vol. 52, No. 2, 1997, pp.185-192.

[13]   S. Q. Wang, S. L. Zhu and C. H. Zhou, “Characteristics of Spatial Variability of Soil Thickness in China,” Geographical Research, Vol. 20, No. 2, 2001, pp. 161-169.

[14]   H. B. Li, Z. H. Lin and S. X. Liu, “Application of Kriging Technique in Estimating Soil Moisture in China,” Geographical Research, Vol. 20, No. 4, 2001, pp. 446-452.

[15]   G. A. Tang and X. Yang, “ArcGIS Spatial Analysis Experiment Guide,” Science Press, Beijing, 2006, p. 405.

[16]   F. A. Galley and O. L. Lioyd, “Grass and Surface Soils as Monitors of Atmospheric Metal Pollution in Central Scotland,” Water, Air and Soil Pollution, Vol. 24, 1985, pp. 1-18.

[17]   C. A. Cambardella, T. B. Moorman, J. M. Novak, et al., “Field-Scale Variability of Soil Properties in Central Iowa Soils,” Soil Science Society of America Journal, Vol. 58, No. 5, 1994, pp. 1501-1511. doi:10.2136/sssaj1994.03615995005800050033x

 
 
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