农村生态环境2001，Vol.17Issue(2)：41-44,4.
Cd-Pb复合污染在土壤-水稻系统中生态效应的研究
Ecological Effect of Cd-Pb Combined Pollution on Soil-Rice System
摘要
Abstract
Pot experiments were conducted to study laws of the migration and accumulation of heavy metals in the soil-rice system and their ecological effect on the system. Results show that in treatment Cd-Pb the crop was 5～7 cm shorter in plant height and 20% less in yield than that in CK. Normal growth of the crops in treatment Cd-Pb and treatment Cd-Pb-Cu-Zn-As was seriously affected.In terms of distribution of heavy metals in grains,the treatments were in the order of treatment Cd-Pb-Cu-Zn-As＞treatment Cd-Pb＞treatment single element.In treatment Cd-Pb the presence of Pb stimulates the plant to absorb Cd,whereas the presence of Cd inhibits the absorption of Pb by rice.Cd is more mobile than Pb and likely to migrate upwards while Pb tends to accumulate in the root of rice.关键词
Cd/Pb/Cu/Zn/As/复合污染/土壤-水稻系统/生态效应分类
资源环境引用本文复制引用
王新,梁仁禄,周启星..Cd-Pb复合污染在土壤-水稻系统中生态效应的研究[J].农村生态环境,2001,17(2):41-44,4.
