| 城市表层土壤重金属污染分析模型 |
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| 引用本文： | 孙少龙,蔡宏强,王冲.城市表层土壤重金属污染分析模型[J].数学理论与应用,2012(1):71-76. |
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| 作者姓名： | 孙少龙 蔡宏强 王冲 |
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| 作者单位： | 青海大学 |
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| 摘 要： | 本文先利用Matlab做出各种重金属元素浓度的空间分布图,初步得到土壤重金属污染的状况.接着用内梅罗污染指数法定量的确定土壤重金属污染最严重的地区,并用主成分分析法进行了验证.最后利用灰色-灾变与回归预测的组合模型解决了地质环境的演变问题.
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| 关 键 词： | 内梅罗污染指数 主成分分析 重金属扩散 |
Topsoil Heavy Metal Pollution Analysis Model |
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| Institution: | Sun Shaolong Cai Hongqiang Wang Cong(Qinghai University,Qinghai,Xining,810016,China) |
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| Abstract: | This paper gives a mathematical model to analyse the topsoil pollution by heavy metals.Firstly,we use Matlab to get a scatter diagram to show the heavy metal contaminations in soil and the spatial distribution of the concentration of the heavy metal elements.And then the most polluted areas are spotted by using the Nemerow pollution index and principal component analysis method.Finally a mathematical model by integrating the gray-disaster model and the regression model is set up to forecasting the evolution of the geological enviroment. |
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| Keywords: | Nemerow pollution index Principal component analysis Heavy metal diffusion |
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