Abstract: By investigating the contents of heavy metals as Cd, Pb, Hg, Cr, Cuand the harmful elements As heavy metal content in banana soil of Zhangzhou, Fujian province, evaluating them by taking the ways of single pollution index and comprehensive pollution index.It shows that, by taking the background value of soil of Fujian as the evaluation standard, soil of some of the banana lands of Zhangzhou are polluted by heavy metals with a pollution order of single pollution index as Hg (1.60) >Pb (1.26) >Cd (1.07) >Cu (0.76) >As (0.50) >Cr (0.38) and the main pollution elements as Cd, Pb and Hg, of which the pollution of Cd and Hg are moderate pollution;while the comprehensive pollution index is 1.16 that they rank light grade.By taking the second grade standard of soil environmental quality as the evaluation standard, the comprehensive pollution index is 0.34 that they rank non-pollution grade.Different sampling points on heavy metal pollution in a comparative analysis shows the road traffic and garbage and sewage on the banana plantations in the soil are caused by different levels of heavy metal pollution, mainly as Cd, Pb, Hg pollution.

Key words: banana, soil, heavy metal, pollution

摘要： 调查福建省漳州市香蕉园土壤重金属Cd、Pb、Hg、Cr、Cu及非重金属有害元素As含量,并采用单项污染指数法和综合污染指数法进行评价。结果表明,以福建土壤背景值为评价标准,漳州市部分香蕉园土壤受到重金属污染,单项污染指数的顺序为Hg(1.60)> Pb(1.26)> Cd(1.07)> Cu(0.76)> As(0.50)> Cr(0.38),污染元素主要为Cd、Pb、Hg,其中Cd、Hg为中度污染;综合污染指数为1.16,属轻度污染。而以土壤环境质量二级标准为评价标准,其综合污染指数为0.34,表明未受污染。对不同取样点土壤重金属污染情况比较分析,说明道路交通、生活垃圾及生活污水均会造成香蕉园土壤不同程度的重金属污染,主要表现为Cd、Pb、Hg的污染。

关键词: 香蕉园, 土壤, 重金属, 污染