城市土壤重金属污染分析及防治对策研究

人类活动对城市环境质量的影响日显突出,重金属污染是影响城市土壤质量的主要因素之一.以某城市为研究对象,根据等高线原理,采用MATLAB编程工具绘出了八种主要重金属在该城区的空间分布,运用地质积累指数法对土壤污染进行评价,并得出该城区不同功能区重金属污染的污染等级和传播特征,为污染源的确定和城市地质环境的改善提供了方法支持.结果表明:利用文中的研究方法,可完整地给出主要重金属污染分布特征和污染程度,为城市的城乡规划、生态环境治理和生态安全研究提供重要的参考依据.

The Analysis of Heavy Metal Pollution and Study of Control Measures in Urban Area

The impact of human activities on the quality of urban environment becomes increasingly prominent,and heavy metal pollution is one of the major factors that influence the quality of urban soil.Taking a city as the research subject,MATLAB programming tools are used to draw the pictures of special distribution of eight main heavy metals in the city based on the principles of contour line.The index of geo-accumulation is used to evaluate the soil pollution,and the levels of pollution of different functional district and propagation characteristics of heavy metal pollution in the urban area are concluded,which provided methodical supports for the definition of pollution sources and the improvement of urban geological environment.The research results show that the distribution characteristics of main heavy metals and the pollution levels can be given out completely by the research methods used in the article,which also provides important foundation for the urban and rural planning as well as ecological environment improvement and the research for ecological security.