| 合肥义城地区土壤重金属污染评价中典型插值方法的对比 |
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| 引用本文： | 李湘凌,张颖慧,杨善谋,袁峰,周涛发.合肥义城地区土壤重金属污染评价中典型插值方法的对比[J].吉林大学学报(地球科学版),2011,41(1):222-227. |
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| 作者姓名： | 李湘凌 张颖慧 杨善谋 袁峰 周涛发 |
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| 作者单位： | 1.合肥工业大学 资源与环境工程学院, 合肥230009;2.合肥市斯康环境科技咨询有限公司, 合肥230001 |
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| 基金项目： | 国家环保公益性行业科研专项，安徽省科技攻关计划项目，安徽省优秀青年科技基金 |
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| 摘 要： | 空间插值对于土壤中重金属元素的空间分布及污染评价具有重要意义。对合肥义城地区土壤中的Cu、Pb、Zn、Cd、As、Hg等污染重金属元素，以常用且具有代表性的反距离加权法、径向基函数法、普通克里格法，进行了空间插值的对比验证分析和评价。通过对各种元素的空间插值各种误差进行综合比较的结果表明：Cu、Pb、As元素采用普通克里格法进行插值结果最优，而Zn元素采用反距离加权法最优，对于Cd、Hg元素则径向基函数插值法最优。
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| 关 键 词： | 空间结构 插值 重金属 土壤 义城 合肥 |
| 收稿时间： | 2010-06-20 |
Comparison of Typical Interpolation Methods for Pollution Evaluation of Soil Heavy Metals in Yicheng District, Hefei |
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| LI Xiang-ling,ZHANG Ying-hui,YANG Shan-mou,YUAN Feng,ZHOU Tao-fa.Comparison of Typical Interpolation Methods for Pollution Evaluation of Soil Heavy Metals in Yicheng District, Hefei[J].Journal of Jilin Unviersity:Earth Science Edition,2011,41(1):222-227. |
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| Authors: | LI Xiang-ling ZHANG Ying-hui YANG Shan-mou YUAN Feng ZHOU Tao-fa |
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| Institution: | 1.School of Resources and Environmental Engineering, Hefei University of Technology, Hefei230009, China;
2.Hefei Sikang Environmental Scientific and Technological Consulting Company Ltd., Hefei230001, China |
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| Abstract: | Spatial interpolation played an important role in spatial distribution of heavy metals in soil and pollution assessment. Soil sample contaminated by Cu,Pb,Zn,Cd,As and Hg elements in Yicheng district , Hefei were collected and analyzed. We validated and appraised the representative spatial interpolation methods such as inverse distanced weighted (IDW), radial basis function (RBF) and ordinary kriging (Kriging). The results showed that Kriging exhibited best effect in Cu, Pb and As, IDW in Zn and RBF in Cd and Hg. |
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| Keywords: | spatial structure interpolation heavy metals soil Yicheng Hefei |
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