Abstract Rare earth elements (REEs) have been widely used in agricultural activities in China for more than 30 years, the resulted environmental risk has attracted gradually increasing attention. Phytoremediation, a technique using plant hyperaccumulator to remove contamination from soil and water, becomes more important as it is environmental friendly and cost-effective. Although many research...学位：理学博士院系专业：化学化工学院化学系_分析化学学号：B20022500
