植物对环境重金属污染的修复技术研究进展

Research Progress in Phytoremediation of Polluted Environment by Heavy Metal

植物修复技术(Phytoremediation)是近年来发展起来的一种主要用于清除土壤重金属污染的生态技术。重金属超积累植物(Hyperaccumulator)及植物修复技术是当前国内外学术界研究的热点领域之一。植物修复重金属污染的机制主要是植物对污染物的吸收积累和降解转化,具有成本低、不破坏土壤和河流生态环境、不引起二次污染等优点,就近十年来国内外植物修复重金属污染的机理、对象及超积累植物的研究作一综述。

Phytoremediation is an ecological technique used to clean polluted soils by heavy metal. The study on phytoremediation and hyperaccumulator is one of the hot fields of academic research worldwide. The machanism of phytoremediation of pollution by heavy metal is that plants absorb, accumulate, degrade and convert pollutants. So phytoremediation has many advantages such as it`s low cost, no destroy to the ecological environment of soils and rivers and does no result in pollutin again. The machanism and target of phytoremediation of pollution by heavy metal and the study on hyperaccumuators in past ten years are reviewed in this paper.