中文摘要：

本研究采用大田试验,通过富集植物小花南芥与蚕豆间作修复铅锌矿区周边农田土壤,分析在间作体系中植物对Cd和Pb的累积特征。结果表明：单作与间作条件下,蚕豆和小花南芥的株高以及生物量没有显著差异。蚕豆在花蕾期Cd,Pb的含量相对较低,成熟期Cd,Pb含量最高,蚕豆的Cd和Pb含量在间作条件下分别比单作高30.9%和40.2%;小花南芥的Cd,Pb含量随种植时间逐步升高,小花南芥的Cd和Pb含量在间作条件下分别比单作高12.6%和低9.04%。蚕豆与小花南芥间作条件下对Cd的富集系数比单作高,而对Pb的富集系数间作和单作没有差异。蚕豆与小花南芥对Cd和Pb的转运系数,单作与间作条件下均没有差异。蚕豆对Cd和Pb的净化效率,间作的均大于单做,小花南芥的净化效率单作与间作没有差异。因此,蚕豆花蕾期Cd,Pb含量最低,成熟期Cd,Pb含量最高,均是间作高于单作;小花南芥在120 d时Cd,Pb含量最高,Cd含量间作高于单作,Pb含量低于单作。研究表明富集植物小花南芥与蚕豆间作修复铅锌矿区周边农田土壤,具有一定的修复效率。

英文摘要：

Field plot experiments were conducted to understand accumulation characteristics of Cd and Pb in plants of broad bean/Arabis alpina intercropping system through intercropping system of phytoremediation and broad bean in cultivated land around Pb/Zn mining area. The results showed that there was no significant different of broad bean and A. alpina height and biomass between monoculture and intercropping systems. Contents of Cd, Pb in bread bean were relatively the lowest in flowering stage. Contents of Cd, Pb in mature stage were the highest. Cd and Pb contents in intercropping system were higher 30.9% and 40.2% than those in monoculture system, respectively. Cd, Pb contents in A. alpina increased with the increase of planting time gradually. In intercropping conditions, Cd content of A. alpina was higher 12.6% than that in monoculture system and Pb content lower 9.04% than that in monoculture system. Cd enrichment coefficient in broad bean and A. alpina intercropping system was higher than in monoculture system. The enrichment coefficient of Pb in intercropping and monocropping systems was no difference. Transport coefficients of Cd and Pb of bean and A. alpina between monoculture and intercropping systems were no difference. The purification efficiencies of Cd and Pb in intercropping system were higher than those in monoculture system. Purification efficiency of A. alpina in monoculture and intercropping system was no difference. In conclusion, Cd, Pb contents of bean were lowest in flowering stage, and Cd, Pb contents of broad bean in intercropping system were higher than in monoculture system in the mature period; Cd and Pb contents of A. alpina were the highest in 120 d. Cd content of A. alpina in intercropping system was higher than in monoculture system. Pb content of A. alpina in intercropping system was lower than in monoculture system.