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References
Acosta, J., Faz, A., Martinez-Martinez, S., 2010. Identification of heavy metal sources by multivariable analysis in a typical mediterranean city (SE Spain). Environmental Monitoring Assessment, 169(1), 519- 530.
Alloway, B.J., 1990. Heavy Metal in Soils, Blackie and Son, Ltd. Glasgow and London. 339 Pages
Anonymous, 2007. The study of landfill site selection for special waste in Hamedan Province, the Reports of Climatology, Hydrology, Geology, Pedology, Geology, Tectonic- Seismicity combined with GIS, Research Department, Shahid Beheshti University. (In Persian)
Anonymous, 2009. Project Atlas of soil contaminants in Hamadan Province, Faculty of Natural Resources, Isfahan University of Technology. (In Persian)
Cao, H.F., Change, A.C., Page, A.L., 1984. “Heavy Metal Contents of Sludge-Treated Soils as Determined by Three Extraction Procedures”. Enviromental Quality, 13(4), 632-634.
Cattle, J.A., McBratney, A., Minasny, B., 2002. Kriging method evaluation for assessing the spatial distribution of urban soil lead contamination. Enviromental Quality, 31, 1576-1588.
Chen, M., Ma, L.Q., Harris, W.G., 1999. Baseline concentrations of 15 trace elements in Florida surface soils. Enviromental Quality, 28(4), 1173-1181.
De Temmerman, L., Vanongeval, L., Boon, W., Hoenig, M., Geypens, M., 2003. Heavy Metal Content of Arable Soils in Northern Belgium. Water, Air, & amp; Soil Pollution, 148(1), 61-76.
De vos, W., Batista, M.J., Demetriades, A., Duris, M.J., Lexa, J., Lis, J., Sina, K.O., Connor, P.J., Metallogenic Mineral Provinces and World Class Ore Deposits in Europe, In: Geochemical Atlas of Europe. Part 1 Background Information, Methodology and Maps, by Salminen, R., 2005. Geological Survey of Finland. [Online] Availability.
Facchinelli, A., Sacchi, E., Mallen, L., 2001. Multivariate statistical and GIS –based approach to identify heavy metal sources in soils, Journal of Environmental Pollution, 114, 313-324.
Gallego, J.L.R., Ordonez, A., Loredo, J., 2002. Investigation of trace element sources from an industrialized area (Aviles, northern Spain) using multivariate statistical methods, Journal of Environment International, 27, 589–596.
Goovaerts, P., 1997. Geostatistics for Natural Resources Evaluation. Oxford Univ. Press, New York, 512 pp.
Journel, A.G., 1986. Geostatistics: models and tools for the earth sciences, Journal of Mathematical Geology, 18, 119–140.
Kabata Pendias, A., Pendias, H., 2001. Trace Elements in Soil and Plants, 3rd Ed. Boca Raton London, New York Washington, D. C, 400pp
Khosravi, D.A., 2008. Spatial distribution of heavy metals in agriculture, urban and industrial soils in Isfahan Province. M.Sc. thesis Natural Resources, Faculty of Natural Resources, Isfahan University of Technology, 89 pp.
Klute, A., 1986. Methods of soil analysis, part I, physical and mineralogical methods, 2nd Ed, Soil Science Society of America INC., Wisconsin, USA, 1170 pp.
Koutev, V., Julien, P., 2001. Spatial variability of total and bioavailable Zn in the Canton of Fribourg Switzerland. Swiss Federal Institute of Technology, PP: 189-190.
Krishna, A.K., Goil, P.K., 2005. Heavy metal distribution and contamination in soils of Thane-Belapur industrial development area, Mumbai, Western India, Journal of Enviromental Geology, 47, 1054-1061 Lado, L. R., Hengl, T., Reuter, H. I., 2008. Heavy metals in European soils: A geostatistical analysis of the FOREGS Geochemical database. Geoderma, 148(2), 189-199.
Madani, H., 1994. Basic of Geostatistic, University of Amirkabir, Tehran (In Persian), 659 pp.
Martin, J.A., Arias, M.L., Grau, C.J.M., 2006. Heavy metals contents in agricultural top soils in the Ebro basin (Spain). Application of the multivariate geoestatistical methods to study spatial variations.
- . /0 1 2 3 2 0 4,
5!6 78 98 : 6 *';
Environmental Pollution, 144(3), 1001-1012.
Mico, C., Recatala. L., Peris. M., Sanchez, J., 2006. Assessing heavy metal sources in agricultural soils of European Mediterranean area by multivariate analysis, Journal of Chemosphere, 65, 863–872.
Mor, F., Rastmanesh, F., 2008. Environmental geochemistry of potentially toxic metals, Publication of environmental protection department, 244 pp.
Mohamadi, G., 2006. Spatial statistic (Geostatistic), Pelk publication, 240 pp.
Movahedirad, Z., 2007. Spatial variation Lead, Nickel and Cadmium in some of soils, Qom Province.
M.Sc. thesis Soil Science, Faculty of Agriculture, Isfahan University of Technology, 173 pp.
Nziguheba, G., Smolders, E., 2008. Inputs of trace elements in agricultural soils via phosphate fertilizers in European countries. Science of the Total Environment, 390(1), 53-57.
Romic, M., Hengl, T., Romic, D., Husnjak, S., 2007. Representing soil pollution by heavy metals using continuous limitation scores, Compution Geoscince, 33(10), 1316-1326.
Shirani, M., 2007. Spatial variability of Lead, Cadmium and Nickel in some of agriculture, urban and industrial soils around roadway Mashhad-Chenaran, M.Sc. thesis Soil Science, Faculty of Agriculture, Ferdosi University of Mashhad, 92 pp.
Weaver, R.W., Angle J.S., Bottomley, P.S., 1994. Methods of soil analysis, microbiological and biochemical properties, part II, Soil Science of America INC, Wisconsia, USA, 1097 pp
Wrrick, W., Myers, D.E., Neilson, D.R., 1989. Geostatistical methods applied to soil science, Method of soil analysis, part 1, physical and mineralogical methods, Journal of Argonomy Monograph, 9(2), 53-81.
Yang, P., Mao, R., Shaom, H., Gao, Y., 2009. An investigation on the distribution of eight hazardous heavy metals in the suburban farmland of china, Journal of Hazardous Material, 167, 1246–1251.
Journal of Natural Environment, Iranian Journal of Natural Resources, Vol. 65, No. 3, 2012, pp. 283-295 295
Spatial Distribution of Chromium, Cobalt and Nickel in the Surface Soils of Hamadan Province
S. Barati1*, N. Mirghaffari1, A. Soffianian1and L. Khodakarami1
1Department of Natural Resources, Isfahan University of Technology, Iran (Received: 25-06-2011 – Accepted: 10-07-2012)
Abstract
Heavy metals are very important from environmental consideration due to their toxicity and accumulativeproperties. The aim of this study is the evaluation of spatial distribution of Cr, Co and Ni in the surface soils of Hamadan province. For this purpose, the surface soil samples (0-20 cm) were collected using systematic random sampling method and the concentration of heavy metals and some of the soil parameters such as pH, EC, the percentage of organic matter, sand, clay and silt were analyzed. For interpolation and mapping the spatial distribution of heavy metals, the accuracy of Kriging methods and their models were compared by the Mean Absolute Error (MAE) values and Mean Bias Error (MBE), and the method with the lowest error was selected. Maps of chromium and nickel distribution were prepared by ordinary Kriging with a spherical model, and that of cobalt by disjanctive Kriging with exponential model. The western regions of Hamadan province had the highest concentration of chromium, cobalt and nickel. According to obtained maps, the regions with the highest concentrations of heavy metals corresponded to the igneous and metamorphic bedrocks. It seems that the geology is the main factor influencing the concentration of heavymetals in the soil.
Keywords: Heavy metals, Geostatistic, Spatial distribution, Soil pollution, Hamadan province
*Corresponding author: Tel: +983113912841 Fax: +983113912840 E-mail: barati_iut@yahoo.com
