立体式植物修复受重金属污染农田土壤的探讨

农田土壤遭受重金属污染是江西省乐平市乐安河沿岸的重要环境问题。采用实验小区的方法，研究了乔、灌、草多层次植物对重金属污染地区土壤的修复作用。结果表明，利用木本植物和对重金属吸收较好的草本植物组成立体模式来净化污染面积较大的土壤，效果明显，简便易行，经济效益大，是治理重金属Cu、Cd复合污染的一条新途径。

Three-dimensional solid phytoremediation of heavy-metal polluted soil

It has been well known that farmland on the both sides of Le-an River in Jiangxi have been contaminated by heavy metals. The remediation function of multilayered plants of trees, shrubs and grasses on heavy-metal polluted soil was studied in the specific experimental sections. The result showed that three-dimensional pattern of woody plants and herbage plants is obviously effective in cleaning heavy-metal polluted soil, which is easy to operate and economically efficient. It is a new way of cleaning Cu, Cd in the polluted soil.