重金属污染土壤的植物修复及植物联合修复研究进展

Review in Phytoremediation and Phytoremediation of Heavy Metal Contaminated Soils

我国约有1.7亿亩农田受到重金属污染,这给我国的农业生产和食品安全造成极大的威胁。目前,土壤中重金属的治理方法主要分为三大类,即:物理法、化学法和生物法。其中生物法中的植物修复法因其成本低、环境友好等优点,成为最近研究的热点,本文就植物及植物联合技术(包括植物-微生物联合、植物-动物联合、植物-基因改良、电动-植物联合、化学试剂-植物联合、改良剂-植物联合、纳米材料-植物联合)修复重金属污染土壤的研究现状进行了综述。

By the end of 2017,about 170 million mu of farmland in China had been contaminated by heavy metals,which posed a great threat to China's agricultural production and food safety.At present,the treatment methods of heavy metals in soil are mainly divided into three categories:physical method,chemical method and biological method.Phytoremediation method which belongs to biological method is becoming a hot spot of recent studies because of its character of low cost and environmentally friendly.In this paper,phytoremediation and combined phytoremediation(includingplant-microbial remediation,plant-animal remediation,plant-gene remediation,electro-plant remediation,chemical-plant remediation,modification-plant remediation,nanomaterial-plant remediation)research status in heavy metal contaminated soil are reviewed.