某硫化物矿周边土壤重金属来源探究

重金属污染是矿山开发过程中的重要环境污染形式,如何更有效地对矿山重金属污染评价一直以来受到密切关注.层次聚类分析法和主成分分析法能够通过简化数据来反映原来多变量的大部分信息,可以用来对重金属潜在污染特征进行研究.以某矿区周边土壤中的重金属为研究对象,采用层次聚类分析法和主成分分析法对矿山开发引起的重金属污染进行了研究,结果显示整个矿区表层土壤潜在污染以Pb、Zn、Cu为主,12个研究点被分为四类,第一类采样点重金属元素主要来自铁龙尾矿库和交通,第二类采样点的重金属元素主要来自尾矿库、交通、土壤母质以及一些未知污染源,第三类和第四类采样点的重金属元素主要来自于交通和土壤母质.

The Sources of Soil Heavy Metal Pollution in Dowmsteam of a Sulfide Ore

Heavy metal pollution is an important form of environmental pollution in mining process, heavy metal pollution evaluation for the mine how to more effectively has been pay close attention to. Hierarchical clustering analysis and principal component analysis （PCA） are the statistical analysis methods of control the principal contradiction, to simplify the data to reflect the original multi-variable most of the information, can be used to study the characteristics of heavy metal pollution potential. Exampled by a certain mining area of North Guangdong around the heavy metals in the soil as the research object, by hierarchical cluster analysis and principal component analysis （PCA） of heavy metal pollution caused by mine exploitation are studied. The results show the entire mine surface potential contamination of soil is given priority to with Pb, zinc, and Cu. The 12 research points can be divided into four categories： the first kind of heavy metals mainly comes from sampling point Tielong railings and traffic： the second type of sampling point of main heavy metals from the tailings, traffic, soil parent material, and some unknown sources of pollution： the third and fourth class sample point of heavy metals mainly comes from the transportation and soil parent material.