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以湘潭锰矿红旗矿区为研究区,对锰矿区土-水界面重金属污染流中Mn、Ni、Cu、Zn、Cd、Pb重金属相关性和主成分进行分析。结果表明:各元素的最大值与最小值之间差异较大,离散程度较大,表现出中到强的变异性;重金属Mn、Zn、Cd、Pb、Cu、Ni在第一主成分上都有很高荷载,且在第一主成分上的载荷远大于在其他两个主成分上的载荷。6种重金属主要来源于矿区内的矿石开采、矿料运输、尾矿库废渣、渗滤液及冶炼厂、随意堆放的废石废渣及废弃私采矿洞,元素Ni在第一、二、三主成分上均有较高的荷载,说明Ni的来源广泛,与矿区农业耕作中污水灌溉、矿石矿渣运输中的洒落等人为活动相关。
Taking the Hongqi mining area of Xiangtan manganese ore as the research area, the correlations and principal components of heavy metals of Mn, Ni, Cu, Zn, Cd and Pb in the heavy metal polluted stream at the soil-water interface in the manganese ore area were analyzed. The results show that there is a large difference between the maximum value and the minimum value of each element, and the degree of dispersion is large, showing medium to strong variability. The contents of heavy metals Mn, Zn, Cd, Pb, Cu and Ni are There is a high load, and the load on the first principal component is much greater than the load on the other two principal components. The six heavy metals mainly come from ore mining, mineral material transportation, tailings reservoir residue, leachate and smelter, randomly deposited waste rock residue and abandoned private mining hole. The content of Ni in the first, second and third principal components On the high load, indicating a wide range of sources of Ni, and agricultural irrigation in the mining area irrigation, mining and slag ore transport spilled and other human activities related.