四川环境2012，Vol.31Issue(4)：135-139,5.
基于土壤重金属污染评价的数学模型
Mathematic Model for Evaluation of Soil Heavy Metal Pollution
蒋咏志 1吴杨帆 2黄丽丽 3单奇1
作者信息
- 1. 西南交通大学机械工程学院；成都611756
- 2. 林菲尔德大学物理学院,美国麦克明维尔97128
- 3. 西南交通大学交通运输与物流学院,成都611756
- 折叠
摘要
Abstract
In this study, mathematic models for evaluation of soil heavy metal pollution were established by adopting the methods of discrete interpolation, multivariate nonlinear regression and finite difference. The models involved the main factors affecting the heavy metal pollution and verification of the pollution sources. The mathematical space theory model was built by fitting the exponential function and polynomial and then the model of pollutants spreading was obtained by considering real physical diffusion ; the coordinate of the simulated pollutant concentration peak was obtained by using discrete interpolation; then the data collected around the simulated points were fitted for positioning the pollution source by using multivariate nonlinear regression.关键词
重金属污染/离散插值/多元非线性回归分析/有限差分法Key words
Heavy metal pollution/discrete interpolation/muhivariate nonlinear regression/finite difference分类
资源环境引用本文复制引用
蒋咏志,吴杨帆,黄丽丽,单奇..基于土壤重金属污染评价的数学模型[J].四川环境,2012,31(4):135-139,5.
