Evaluation of Soil Heavy Metal Pollution Based on Complex Network
Urban soil heavy metal pollution seriously affects the ecological environment,and the prevention and control of soil heavy metal pollution is an important part of ecological civilization construction.Based on the heavy metal element content data of soil sampling points in Huanghua City in 2013,the sampling point co-anomaly network and element co-anomaly network were constructed by using the complex network method,and the spatial clustering characteristics of soil pollution were analyzed by using the association division algorithm.The results of the sampling point co-anomaly network show that pollution is common in Huanghua City,and heavy pollution is concentrated in Lvqiao Town in the north;the polluted sampling points in Huanghua City can be divided into associations for common management,among which the pollution of Huazhong Street and Lvqiao Town is the most similar,and common management of pollution should be considered.The results of elemental co-anomaly network show that element Cu is the most seriously polluted element in Huanghua City,and its pollution distribution with element Cr is in similar areas of Huanghua City.The results of the study can provide an important reference for the management of surface soil pollution in Huanghua City.
soil pollutionheavy metalspatial distributioncomplex network methodHuanghua city
万方数据
维普
