土壤重金属污染植物修复研究进展

土壤重金属污染是全球面临的一个急待解决的环境问题。近年来新兴的污染土壤植物修复技术是利用绿色植物来固定、提取土壤中的重金属从而降低或清除其对环境的毒害；与传统的土壤污染治理技术相比，该技术由于具有成长低、不破坏环境、保护人类健康和易为大众接受等优点而引起了人们极大的关注。系统地介绍了植物修复的类型、机理、优缺点、基因工程在提高植物修复能力中的应用等有关内容；最后探讨了植物修复技术今后发展的方向。

Advance of phytoremediation on soils polluted by heavy metal

Soil pollution by heavy metal has become a global problem urgently needed to be solved. A recent developed technology called phytoremediation uses green plant to stabilize or extract heavy metals in soil to make them less harmful to environment.Compared with traditional technology for recovery of polluted soil by heavy metals,this technology has such advantages as lower cost ?protecting environment and easily acceptable to public,due to which the technology has caught much attention from scientific field. Details about phytoremediation of type and mechanism of the technology,advantage and disadvantage, application of gene technology in improving remediation ability and so are introduced greatly in this paper.Also,a probe to the future development of the technology is made.