稻虾共作模式下稻田pH对土壤和水稻重金属含量的影响
作者:
作者单位:

1.华中农业大学植物科学技术学院/作物栽培与生理生态研究中心,武汉 430070;2.华中农业大学双水双绿研究院,武汉 430070

作者简介:

沈丹琪,E-mail:315295499@qq.com

通讯作者:

江洋,E-mail: jiangyang@mail.hzau.edu.cn

中图分类号:

S511;S966.1

基金项目:

中央高校基本科研业务费专项(2662019QD049);湖北洪山实验室重大项目(2021hszd002)


Effects of pH on heavy metals contents in paddy soil and rice under rice-crayfish co-culture
Author:
Affiliation:

1.College of Plant Science and Techonology,Huazhong Agricultural University/ Center for Crop Cultivation and Physiology and Ecology,Wuhan 430070,China;2.Shuangshui Shuanglü Institute,Huazhong Agricultural University,Wuhan 430070,China

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为探究稻虾共作模式对稻田土壤和水稻中重金属含量的影响,以湘晚籼12号、黄华占、玉针香为试验材料,常规稻作模式为对照,在不同土壤背景条件下(试验地点分别位于湖北省荆门市掇刀区和黄冈市浠水县)开展大田试验。结果显示:在弱碱性土壤背景下,稻虾共作模式中稻田土壤中Cr、As、Cd、Pb和Hg的含量降低,水稻根、茎、穗以及糙米中Cd、Pb含量降低;在弱酸性土壤背景下,稻虾共作模式中稻田土壤中Cr、As、Cd、Pb和Hg的含量升高,水稻根中Cd、Pb含量升高,水稻茎叶穗中Cd含量升高,Pb含量降低,水稻糙米中Cd、Pb含量均降低。本研究结果表明,不同pH土壤背景下稻虾模式对土壤和水稻重金属含量的影响表现不一致,但稻虾模式均可明显降低稻米中Cd和Pb的含量。

    Abstract:

    To explore the effects of rice-crayfish co-culture system on the contents of heavy metals in paddy soil and rice,field experiments were carried out under different soil backgrounds in Jingmen city and Xishui county of Hubei Province,with Xiangwanxian 12,Huanghuazhan and Yuzhenxiang as experimental materials under rice monoculture as control. The results showed that under the background of weak alkaline soil,the contents of Cr,As,Cd,Pb,and Hg in paddy soil decreased,and the contents of Cd and Pb in roots,stems,spikes,and brown rice decreased. Under the background of weak acid soil,the contents of Cr,As,Cd,Pb and Hg in paddy soil increased,the contents of Cd and Pb in rice roots increased,the contents of Cd in stems,leaves and spikes of rice increased,while the contents of Pb in stems,leaves,and spikes of rice decreased,and the contents of Cd,Pb in brown rice decreased. The results showed that the effects of rice-crayfish co-culture system on the contents of heavy metals in paddy soil and rice under different pH soil backgrounds are inconsistent,but rice-crayfish co-culture system can significantly reduce the contents of Cd and Pb in brown rice.

    参考文献
    相似文献
    引证文献
引用本文

沈丹琪,刘敏,曹凑贵,江洋.稻虾共作模式下稻田pH对土壤和水稻重金属含量的影响[J].华中农业大学学报,2023,42(2):86-92

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-04-30
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2023-03-31
  • 出版日期: