华北农学报Issue(z1)：361-365,5.
重金属Cu、Zn、Pb和Cd在土壤-萝卜系统中的迁移累积规律
Accumulation and Mobility of Heavy Metals Cu,Zn,Pb and Cd in Soil-radish System
摘要
Abstract
Heavy metal pollution in agricultural land becomes more and more serious in recent years .The soil culture experiments were performed to study the accumulation and mobility of heavy metals Cu ,Zn,Pb and Cd in soil-radish system.The results showed that the concentration of soil Cu ,Zn,Pb and Cd were 800,1 000,1 000,5.0 mg/kg,the growth of radish was inhibited obviously .With the increase of soil heavy metal concentrations ,Cu,Zn,Pb and Cd concentration in root of radish significantly increased .The growth for 90 days,with the increase of soil heavy metal concentration ,concentration of Cu ,Zn,Pb and Cd in shoot increased significantly .With the growth period ex-tended,Pb concentration in shoot of radish significantly increased .With the increase of soil heavy metal concentra-tions,Cu,Zn,Pb and Cd concentrations in root of radish were significantly increased .The amount of soil Cu ,Zn,Pb and Cd significantly promoted the absorption of radish root ,but the soil Cu concentration exceeding a certain range , Cu concentration in root of radish have no significant changes .With the extension of growth time ,Zn and Cd in root were significantly decreased ,and Pb concentration significantly increased .Distribution of heavy metals in different parts of radish on different soil heavy metals content:the order of Cu ,Pb and Cd content was root >stem and leaf , the order of Zn content was stem and leaf >root.The order of radish enrichment ability was Cd >Zn>Cu>Pb.关键词
萝卜/重金属/迁移/累积/规律Key words
Radish/Heavy metal/Mobility/Accumulation/Regularity分类
农业科技引用本文复制引用
茹淑华,张国印,孙世友,王凌,耿暖..重金属Cu、Zn、Pb和Cd在土壤-萝卜系统中的迁移累积规律[J].华北农学报,2013,(z1):361-365,5.基金项目
河北省自然基金项目 （）
