超积累植物在重金属污染土壤修复中的应用

重金属污染土壤植物修复技术是目前世界范围内研究的热点之一,超积累植物能超量吸收和积累土壤中的重金属元素,其体内重金属含量是一般植物的100倍以上,超积累植物修复是植物修复技术的关键。介绍了超积累植物的概念、特征、物种资源和开发现状,探讨了该技术的应用前景。

Discussion on the Application of Hyperaccumulators in the Remediation of Heavy Metal Contaminated Soil

The phytoremediation technology for heavy metal contaminated soil is one of the research hotspots in the world at present.The hyperaccumulator can absorb and accumulate excessively the heavy metals in the soil.The content of heavy metals in their bodies is more than 100 times of that in the bodies of common plants.Therefore,the hyperaccumulation is the key of phytoremediation.This paper introduces the concepts,features,species resources and current developments of hyperaccumulators,and probes into the appli...