Effect of different ramie (<i>Boehmeria nivea</i> L. Gaud) cultivars on the adsorption of heavy metal ions cadmium and lead in the remediation of contaminated farmland soils

Abstract Heavy metal ions, including cadmium (Cd) and lead (Pb), are serious pollutants in farmland soils. The effective removal of heavy metals is an important task soil remediation. This study aimed to evaluate the ability seven ramie ( Boehmeria nivea L. Gaud) cultivars remove metals. Results showed that varieties grew well Cd Pb polluted aboveground biological tissues raw fiber yield “Zhongzhu1” were 20.71 24.61 Mg ha −1 per year, respectively, which significantly higher than those six other varieties. levels each part can be arranged as husks &gt; root stem bone leaf fiber, while fiber. content shoots was 19.89 mg kg , “Shiqianzhugenma” 9.41 . extraction efficiency greatly similar all Our observations suggest used toxic ions (Cd Pb). provides a new understanding planting for from contaminated