湖北农业科学 ›› 2018, Vol. 57 ›› Issue (6): 35-38.doi: 10.14088/j.cnki.issn0439-8114.2018.06.008

• 资源·环境 • 上一篇    下一篇

萱草对土壤中镉、铅、锌单一污染的修复效果

王硕1, 李德生1, 王静1, 晁卓锡1, 张才2   

  1. 1.天津理工大学,天津 300384;
    2.山东省乳山市林业局,山东 乳山 264500
  • 收稿日期:2017-10-30 出版日期:2018-03-25 发布日期:2020-01-06
  • 通讯作者: 李德生,教授,(电子信箱)595399921@qq.com
  • 作者简介:王硕(1991-),女,江苏徐州人,在读硕士研究生,研究方向为污染土壤的防治,(电话)13327947829(电子信箱)394336124@qq.com。
  • 基金资助:
    天津市科技支撑计划重点项目(12ZCZDNC00400); 天津市应用基础与前沿技术研究计划项目(14JCYBJC23000); 国家自然科学基金项目(41303057); 天津理工大学大学生创新创业训练计划项目(201510060021)

Repairing Effect of Hemerocallis fulva on Cd,Pb,Zn Single Pollution in Soil

WANG Shuo1, LI De-sheng1, WANG Jing1, CHAO Zhuo-xi1, ZHANG Cai2   

  1. 1.Tianjin University of Technology,Tianjin 300384,China;
    2.Rushan Forestry Administration of Shandong,Rushan 264500,Shandong,China
  • Received:2017-10-30 Online:2018-03-25 Published:2020-01-06

摘要: 利用盆栽试验,研究不同重金属浓度下萱草(Hemerocallis fulva)对土壤中镉、铅、锌的修复效果。结果表明,一定范围内,土壤重金属含量促进了萱草的地上生物量;低浓度重金属胁迫(Cd≤20 mg/kg、Pb≤1 000 mg/kg、Zn≤1 000 mg/kg)促进了萱草叶片对镉、铅、锌的富集,具体表现为镉>锌>铅;镉、铅、锌的转运系数随土壤重金属浓度的增加而逐渐减小,具体表现为铅>镉>锌;低浓度重金属胁迫(Cd≤5 mg/kg、Pb≤1 000 mg/kg、Zn≤1 000 mg/kg)提高了萱草对土壤中镉、铅、锌的修复效率,表现为铅>镉>锌。表明萱草对低浓度镉、铅、锌单一污染土壤的修复效果较好。

关键词: 萱草(Hemerocallis fulva), 重金属污染, 富集系数, 转运系数, 修复效果

Abstract: Using pot experiment,the repairing effect of Hemerocallis fulva on Cd,Pb,Zn in soil under different concentrations of heavy metals. The results showed that aboveground biomass of H. fulva was increased within a certain heavy metal content range in soil; The low concentration of heavy metals(Cd≤20 mg/kg,Pb≤1 000 mg/kg, Zn≤1 000 mg/kg) promoted the enrichment of Cd,Pb,Zn in H. fulva leaves,and the specific performance showed Cd>Zn>Pb; With heavy metal concentration increasing,the transfer coefficient of Cd,Pb,Zn decreased,and the specific performance showed Pb>Cd>Zn; The low concentration of heavy metal (Cd≤5 mg/kg,Pb≤1 000 mg/kg,Zn≤1 000 mg/kg) improved the repair efficiency of H. fulva on Cd,Pb,Zn in soil,and the specific performance showed Pb>Cd>Zn. It suggested that H. fulva was good for low concentrations of Cd,Pb,Zn in soil.

Key words: Hemerocallis fulva, heavy metal pollution, enrichment coefficients, transfer coefficients, repairing effect

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