土壤重金属污染修复植物筛选方法研究进展

Advances in Screening Methods of Remediation Plants of Heavy Metal Pollution

采用植物修复技术防治土壤重金属污染是目前研究的热点,其中寻找和筛选自然界中存在的对重金属具有较强富集作用的植物,是植物修复研究的一项重要内容。针对野外调查-重金属浓度梯度法、特殊植物-重金属浓度梯度法和土壤种子库-重金属浓度梯度法3种修复植物筛选方法的优点、缺点及应用情况进行综述,详细介绍了目前发现的重金属富集植物。

Phytoremediation of heavy metal polluting soil is the research hotspot at present. Finding and screening hyperaccumulators which can accumulate high quantities of heavy metals is an important content in the research of phytoremediation. In this paper the author summarized the advantage, disadvantage and application of the three screening method, including field investigation-heavy metal concentration gradient method, special plant-heavy metal concentration gradient and soil seed bank-heavy metal concentration gradient, and expatiated some plant species of metal accumulators that were found.