CAJ | 학술논문

采用温室土培盆栽试验研究了铜、锌、铅和镉复合污染对番茄生长和重金属累积规律的影响。试验结果表明，随着土壤加入铜、锌、铅和镉含量的增加，番茄根中铜、锌、铅和镉的含量呈明显的上升趋势，茎叶中锌和镉的含量也呈明显的上升趋势，铜和铅的含量增加幅度不大，果实中铜、锌、铅和镉的含量增加幅度也不大。番茄茎叶铜、锌、铅和镉的吸收量远远大于果实和根系的吸收量。当土壤加入铜、锌、铅和镉含量较高时，茎叶铜和铅的吸收量随生物量下降而降低。番茄茎叶铜、锌和铅的吸收量随着土壤重金属含量的增加呈先上升后下降的趋势。番茄茎叶镉的吸收量随土壤重金属含量的增加呈一直上升的趋势。随着土壤重金属含量的增加，果实中的铜、锌、铅和镉的吸收量变化不明显，根中铜和铅的吸收量呈一直增加的趋势，而锌和镉的吸收量变化幅度不大。在同一土壤重金属处理条件下，番茄各部位对铜、锌、铅和镉的富集能力大小顺序为镉＞锌＞铜＞铅。相同土壤重金属处理条件下，番茄对同一重金属元素的富集能力顺序为根＞茎叶＞果实。
채용온실토배분재시험연구료동、자、연화력복합오염대번가생장화중금속루적규률적영향。시험결과표명，수착토양가입동、자、연화력함량적증가，번가근중동、자、연화력적함량정명현적상승추세，경협중자화력적함량야정명현적상승추세，동화연적함량증가폭도불대，과실중동、자、연화력적함량증가폭도야불대。번가경협동、자、연화력적흡수량원원대우과실화근계적흡수량。당토양가입동、자、연화력함량교고시，경협동화연적흡수량수생물량하강이강저。번가경협동、자화연적흡수량수착토양중금속함량적증가정선상승후하강적추세。번가경협력적흡수량수토양중금속함량적증가정일직상승적추세。수착토양중금속함량적증가，과실중적동、자、연화력적흡수량변화불명현，근중동화연적흡수량정일직증가적추세，이자화력적흡수량변화폭도불대。재동일토양중금속처리조건하，번가각부위대동、자、연화력적부집능력대소순서위력＞자＞동＞연。상동토양중금속처리조건하，번가대동일중금속원소적부집능력순서위근＞경협＞과실。
Heavy metal pollution in agricultural land becomes more and more serious in recent years .The soil culture experiments were performed to study the effects of combined pollution of Cu ,Zn,Pb and Cd on growth of to-mato and heavy metal accumulation regularity .The results showed that with the increasing of soil heavy metals Cu , Zn,Pb and Cd,the content of Cu,Zn,Pb and Cd in root of tomato were obviously increased .Zn and Cd content in stems and leaves were increased .Cu and Pb content in stems and leaves were not obviously increased ,Cu,Zn,Pb and Cd content in fruits were increased slightly .Cu,Zn,Pb and Cd uptake in stems and leaves of tomato were far greater than that of fruits and roots .When the soil heavy metals content were higher ,Cu and Pb uptake in the stems and leaves decreased due to the decreasing of biomass .With the increasing of soil heavy metals content ,Cu,Zn and Pb uptake in leaves of tomato were firstly increased and then decreased .With the increasing of heavy metals content in soil,Cd uptake in stems and leaves in tomato was rising trend .With the increasing of soil heavy metals content , Cu,Zn,Pb and Cd uptake in fruits were not changed significantly ,Cu and Pb uptake in root was always increased , while Zn and Cd uptake in root changed slightly .In the same soil heavy metal processing conditions ,the accumula-tion ability of heavy metal elements in each part of tomato was Cd >Zn>Cu>Pb.The distribution of heavy metals of Cu,Zn,Pb and Cd in different parts of tomato was root >stem and leaf>fruit.