摘要
冶炼厂对周围的农田土壤造成了污染,其中Cu的污染最严重,100m处的全态和提取态Cu分别是182.45mg.kg-1和81.91mg.kg-1,是对照的10.3倍和35倍。污灌区丁香蓼各器官重金属Cu、Zn的分布规律:Cu是根>叶>茎;Zn为茎>根>叶,Zn在丁香蓼体内的移动能力大于Cu,Cu主要累积在根部;丁香蓼茎和土壤中Cu的浓度密切相关。
The soil is polluted by heavy melts near the smeltery. The total and extractabl Cu in the soil of 100m are 182.45mg·kg^-1 and 81.91mg·kg^-1 respectively which are 9.3 times and 34 times higher than those of the contrast. The distribution of heavy metals in Ludwigia prostrate Roxb of the sewage irrigation area are that Cu is root〉leaf 〉 stem and Zn is stem〉root〉 leaf. Zn is more mobile than Cu which is likely to accumulate in the root of Ludwigia prostrate Roxb. The contents of Cu in the Ludwigia prostrate Roxb of stem have significant correlation with the contents of Cu in soil of the sewage irrigation area.
出处
《皖西学院学报》
2008年第2期81-84,共4页
Journal of West Anhui University
基金
安徽省教育厅自然科学基金项目(KJ2007B350ZC)
关键词
土壤
丁香蓼
重金属污染
soil
Ludwigia prostrate Roxb
heavy melt pollution
