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烟草—红叶甜菜轮作对镉污染农田的修复潜力试验

谭可夫 涂鹏飞 杨洋 袁婧 陈璘涵 曾清如

谭可夫, 涂鹏飞, 杨洋, 袁婧, 陈璘涵, 曾清如. 烟草—红叶甜菜轮作对镉污染农田的修复潜力试验[J]. 环境工程技术学报, 2020, 10(3): 440-448. doi: 10.12153/j.issn.1674-991X.20190167
引用本文: 谭可夫, 涂鹏飞, 杨洋, 袁婧, 陈璘涵, 曾清如. 烟草—红叶甜菜轮作对镉污染农田的修复潜力试验[J]. 环境工程技术学报, 2020, 10(3): 440-448. doi: 10.12153/j.issn.1674-991X.20190167
TAN Kefu, TU Pengfei, YANG Yang, YUAN Jing, CHEN Linhan, ZENG Qingru. Phytoextraction of cadmium contaminated agricultural soil by tobacco and swiss chard rotation systems[J]. Journal of Environmental Engineering Technology, 2020, 10(3): 440-448. doi: 10.12153/j.issn.1674-991X.20190167
Citation: TAN Kefu, TU Pengfei, YANG Yang, YUAN Jing, CHEN Linhan, ZENG Qingru. Phytoextraction of cadmium contaminated agricultural soil by tobacco and swiss chard rotation systems[J]. Journal of Environmental Engineering Technology, 2020, 10(3): 440-448. doi: 10.12153/j.issn.1674-991X.20190167

烟草—红叶甜菜轮作对镉污染农田的修复潜力试验

doi: 10.12153/j.issn.1674-991X.20190167
详细信息
    作者简介:

    谭可夫(1994—),男,硕士研究生,研究方向为农田重金属修复,295573609@qq.com

    通讯作者:

    曾清如 E-mail: qrzeng@163.com

  • 中图分类号: X53

Phytoextraction of cadmium contaminated agricultural soil by tobacco and swiss chard rotation systems

More Information
    Corresponding author: ZENG Qingru E-mail: qrzeng@163.com
  • 摘要: 植物修复重金属污染土壤具有环境友好、成本适中、可原位修复等优势。采集中、高重金属污染风险的农田土壤开展盆栽试验,探究烟草—红叶甜菜轮作模式对2种农田污染土壤中Pb、Zn、Cu、Cd的修复潜力。结果表明:烟草和红叶甜菜对2种农田污染土壤中Pb、Zn、Cu、Cd均有一定的富集能力,其中对Cd的富集能力最为显著;在高重金属污染风险土壤中,烟草成熟期下部叶的Cd浓度最高,达41.63 mg/kg,富集系数(BCF)和转运系数(TF)分别为17.06和17.42,红叶甜菜成熟期根部Cd浓度为7.55 mg/kg,BCF为3.85,高于地上部位;在中重金属污染风险土壤中,烟草成熟期下部叶的Cd浓度达34.59 mg/kg,BCF和TF分别为40.69和13.67,红叶甜菜成熟期根部Cd浓度为4.33 mg/kg,BCF为7.69;轮作试验结束后,中、高重金属污染风险土壤中Pb、Zn、Cu、Cd全量浓度分别下降了2.99%、3.55%、12.41%、57.64%和3.32%、1.63%、9.45%、24.59%,同时,土壤中Pb、Cu、Cd有效态浓度显著降低。烟草—红叶甜菜轮作模式在中、高重金属污染风险农田土壤修复中具有一定的应用潜力。

     

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  • 收稿日期:  2019-10-10
  • 刊出日期:  2020-05-20

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