Spatial Distribution of Heavy Metals in Agricultural Soils of an Industry-Based Peri-Urban Area in Wuxi, China

作     者：ZHAO Yan-Feng SHI Xue-Zheng HUANG Biao YU Dong-Sheng WANG Hong-Jie SUN Wei-Xia I. OEBOERN K. BLOMBACK ZHAO Yan-Feng, SHI Xue-Zheng, HUANG Biao, YU Dong-Sheng, WANG Hong-Jie, SUN Wei-Xia, I. BOERN and K. BLOMB CK State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China). Department of Soil Science, the Swedish University of Agricultural Sciences, SE-75007, Uppsala (Sweden) Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)

作者机构：State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China） Department of Soil Science the Swedish University of Agricultural Sciences SE-75007 Uppsala （Sweden） Graduate School of the Chinese Academy of Sciences Beijing 100039 （China） 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2007年第17卷第1期

页      面：44-51页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：Project supported by the RURBIFARM (Sustainable Farming at the Rural-Urban Interface) project of the European Union (No. ICA4-CT-2002-10021) the Knowledge Innovation Program of the Chinese Academy of Sciences (No. KZCX3-SW-427) the National Key Basic Research Support Foundation of China (No. 2002CB410810) 

主　　题：agricultural soil heavy metals peri-urban area spatial distribution 

摘      要：In industry-oriented peri-urban areas, the heavy metal accumulation in soils caused by industrialization has become a potential threat. The top soil samples from 27 paddy fields and 75 vegetable fields were collected from a typical industry- based peri-urban area of about 8 km^2 in Wuxi, China, to study the accumulation and distribution of As, Hg, Cu, Zn, Pb, Cr, and Cd in comparison with heavy metal contents in soils near developed industrial sites （Guangzhou, China; Wallsend Burn of Tyneside, UK; and Osnabrück, Germany）. Kriging interpolation was used to determine the metals, spatial distribution. The results showed that most soils, compared to the background values, contained elevated contents of As, Hg, Cu, Zn, and Pb with some having elevated contents of Cd and Cr. Except for less than 10% of the soil samples of Cu, Zn and Cd contents, these heavy metal contents were lower than the soil threshold levels of the Grade Ⅱ criteria for the Chinese environmental quality standard. Probably, because of the scattered distribution and diversity of industries in the study area, spatial distributions of these heavy metals from Kriging interpolation indicated little similarity. Nevertheless, when compared with other areas in the Taihu Lake region, mean contents of Cu, Zn, Pb, and Cd were relatively high in the Wuxi peri-urban area. Additionally, compared to soils in agricultural areas around Guangzhou, Osnabrück, or Wallsend Burn, contents of most heavy metals in soils from this area were lower.