Research on Material Properties and Soil Heavy Metal Pollution in Cities with Spread Evolution Model

Abstract:

In this paper, mainly research the surface soil heavy metal pollution in cities. First of all ,we find out the spatial distribution of eight kinds of main metal elements in the urban; we adopt the improved gray model to establish evaluation system about urban pollution heavy metal element degree, and then to evaluate the pollution degree of heavy metal element in the city area. Eight heavy metals have been in dimension reduction by means of correlation analysis and principal component analysis, comprehensive variables can be got. By calculating the rotating component matrix, we got objective reason of metal contamination. We analyzed transmission characteristics of heavy metal pollutants and build model to determine the location of the pollution sources. We introduced the field theory the basic assumption , calculated various factors which lead to the change of one point of concentration. The differential equation model can be got which reacted geological environment evolution mode through the mass conservation. Finally we determine the location of the pollution sources and the evolution of the urban geological environment mode.

• Periodical: Advanced Materials Research (Volume 951)
• Pages: 127-132
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.951.127
• Online since: May 2014
• Authors: Yuan Fan*, Min Xing Xu, Wei Xin Lin
• Keywords: Heavy Metal Pollution, Kringing Interpolation, Partial Differential Equation, Propagation Model

References

[1] Xu-Dong Guo , Bo-Jie Fu and Li-Ding Chen : Hebei plain ZunHua spatial and temporal variation of soil nutrients variation function and Kriging interpolation analysis, ACTA GEOGRAPHICA SINICA . (2000), 05.

[2] Ma Xiping: Typical evaluation and spatial distribution of soil heavy metal pollution around the industrial zone, Journal of Harbin Institute of Technology. (2007).

[3] Zhuo-Ting Gan : Soil heavy metal pollution evaluation method are reviewed. Chinese Agricultural Science Bulletin.

[4] Ye Sizong: Soil environmental quality evaluation, Shanghai Environmental Sciences , 1992，11(6): 39-40.

[5] Sun Long, Li-Jun Han : Typical vegetation area was full of highway roadside soil heavy metal pollution characteristics and evaluation research, Chinese Journal of Soil Science, (2008).

[6] Luo Hou medal, Wang Hongkang: With the grey clustering method in comprehensive evaluation of soil heavy metal pollution degree , Acta Agriculturae Universitatis Pekinensis, (1994).

[7] Cun-Jin Fang : The main heavy metal pollutants in soil migration and governance, Contemporary Chemical Industry , 2009, 40(4): 567-571.

[8] Yang Yuanhui: Surface soil heavy metal pollution in cities spread evolution patterns and their temporal database design, 9th OAPS Working Paper Series，2013, 2012-009: 2-8.

[9] Jia Gao Meng: The evolution of the multidimensional propagation model based on the research of urban geological environment mode, The three gorges university newspaper(natural science ), 2013, 35(1): 109-112.

[10] ZhuoJinWuThe application of MATLAB in mathematical modeling [M], Beijing university of aeronautics and astronautics press, 2011: 180-181.