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中国农学通报 ›› 2018, Vol. 34 ›› Issue (24): 29-33.doi: 10.11924/j.issn.1000-6850.casb17060038

所属专题: 园艺

• 农学 农业基础科学 • 上一篇    下一篇

小白菜间作对苎麻地上部分汞吸收富集的影响

刘小平,廖敦秀,吕发生,刘华强,高润霞   

  1. 四川省泸县农林局,重庆市农业科学院,重庆市渝东南农业科学院,重庆市渝东南农业科学院,重庆地质矿产研究院
  • 收稿日期:2017-06-06 修回日期:2017-08-15 接受日期:2017-08-24 出版日期:2018-08-28 发布日期:2018-08-28
  • 通讯作者: 高润霞
  • 基金资助:
    重庆市2014年基本科研业务费项目(2014cstc-jbky-00512);国家麻类产业技术体系建设专项资金(CARS-19-S16)

Effect of Pakchoi Intercropping on Hg Absorption and Accumulation in Ramie Overground Part

  • Received:2017-06-06 Revised:2017-08-15 Accepted:2017-08-24 Online:2018-08-28 Published:2018-08-28

摘要: 将汞转运富集能力较强的苎麻与对汞富集系数较小的叶菜类蔬菜(小白菜)套作,研究这种套作模式下,土壤中汞的形态变化及两种作物对土壤中汞的吸收富集特征。结果表明:单作小白菜(T1)、单作苎麻(T2)及苎麻-小白菜间作(T3)体系中土壤酸溶态汞的含量较对照明显增高,增幅分别为39.49%、61.67%、58.47%,残渣态的汞含量也有降低趋势,从原来的51.22% (CK)下降到45.61% (T3);苎麻-小白菜间作(T3)提高了麻叶和麻皮中汞的含量,降低了小白菜体内汞的含量。通过苎麻与小白菜间作,可以实现汞污染农地的土壤修复与农业生产的双赢。

关键词: 专利, 专利, 农业, 科技创新

Abstract: Intercropping of high Hg accumulation plant ramie and low Hg accumulation plant pakchoi was conducted to study Hg forms in soil and absorption and accumulation characteristics in these two plants. The results showed that soil acid soluble Hg contents of pakchoi monoculture (T1), ramie monoculture (T2) and ramie-pakchoi intercropping (T3) were significantly higher than that of CK, and the increasing range was 39.49%, 61.67% and 58.47%, respectively, and the content of residual Hg decreased from 51.22% (CK) to 45.61% (T3). The intercropping increased Hg content in ramie leaf and stem-fibre, decreased Hg content in pakchoi. The intercropping could realize soil remediation and agriculture production in Hg polluted soil.