Research and Improvement of the Matter Element Analysis of the application about evaluate the pollution of soil heavy metals

The article mainly analyses the Matter Element Analysis of the application about evaluate the pollution of soil heavy metals,and taking 12 Monitoring datas in Dongguan city as example to evaluate the current situation of soil heavy metal pollution.Simultaneously,depth analysis of the Matter Element Analysis to improve its inadequate.The results prove‘based on weighting toxicity of the Matter Element Analysis' is a reasonable method of calculation,the evaluation results are reliable and accurate that it is an new Evaluation Method of soil heavy metals.