【作者】 杨智宽； 汪玉庭； 张琳；

【Author】 Yang Zhikuan, Wang Yuting , Zhang Lin School Of Resource And Environmental Science , Wuhan University, Wuhan. 430079

【机构】 武汉大学资源与环境科学学院；

【摘要】 在铅污染的土壤中施加新型的含硫壳聚糖衍生物(SCTA-Ⅰ),能显著地增加土溶液中铅的总浓度,水提取铅的浓度可增大130-180倍,加速铅在植物体内的传输速度,使植物木质液中金属的浓度增大,最大可增加120倍,能增加玉米对铅的吸收量,促进植物对Pb的累积,提高土壤植物修复的效率。更多还原

【Abstract】 In this study, we investigated the potential of adding chitosan chelating agent bearing sulfhydryl group (SCTA-Ⅰ) to Pb-contaminated soils to increase Pb accumulated in plants. Results showed that the total concentration of Pb in soil solution and xylem sap significantly increased after the addition of SCTA-Ⅰ. The addition of SCTA-Ⅰ to a Pb- contaminated soil increased shoot and root Pb concentration of corn. It was increased Pb translocation from roots to shoots.更多还原