生态与农村环境学报2024，Vol.40Issue(4)：565-571,7.DOI:10.19741/j.issn.1673-4831.2023.0217
钝化剂对土壤有效态镉、铅及其在三叶青块根中累积的影响
Effect of Passivators on the Contents of Available Cadmium and Available Lead in Soil and Their Accumulation in Tetrastigma hemsleyanum Roots
摘要
Abstract
Experiments of bagging in greenhouse were performed to investigate the effect of organic fertiliser,biochar,sepiolite and the mixture of biochar and sepiolite(1 ∶ 1)on soil pH and the contents of available Cd and available Pb in heavy metal contaminated soil,and the changes in the cadmium and lead contents of Tetrastigma hemsleyanum roots were analyzed.The results show that the different passivators all increased soil pH in varying degrees,reduced the contents of available Cd and available Pb in soil and reduced the contents of Cd and Pb in Tetrastigma hemsleyanum roots.Compared with the control,the addition of 1%to 5%passivators could increase soil pH value by 0.05 to 1.03,respectively,reduce the contents of available Cd and available Pb in soil by 2.95%-42.46%and 6.21%-55.77%,respectively,and reduce the contents of Cd and Pb in Tetrastigma hemsleyanum roots by 15.61%-48.33%and 8.18%-61.67%,respectively.The addition of 5%of the mixture of biochar and sepiolite had the greatest effect on pH value on the contents of available Cd and available Pb in soil,and on those of Cd and Pb in the Tetrastigma hemsleyanum roots,which indicates that the addition of 5%mixed passivator(the weight ratio of biochar and msepiolite is 1 ∶ 1)was the most effective in the passiva-tion remediation of heavy metals in the soil-Tetrastigma hemsleyanum system.关键词
钝化剂/三叶青/有效态镉/有效态铅Key words
passivator/Tetrastigma hemsleyanum/available Cd/available Pb分类
资源环境引用本文复制引用
王贤波,阮松林,朱霄岚,钱丽华,童朝明,严建立..钝化剂对土壤有效态镉、铅及其在三叶青块根中累积的影响[J].生态与农村环境学报,2024,40(4):565-571,7.基金项目
杭州市农业与社会发展科研项目(20201203B115) （20201203B115）
杭州市农科院科技创新与示范推广基金项目(2022HNCT-07) （2022HNCT-07）
