印度芥菜对土壤中难溶态铅的吸收与活化  

Uptake and Activation of Insoluble Pd in Soil by Brassica juncea

作　　者：游伟民[1] 李天铎[1] 

机构地区：[1]山东轻工业学院轻化与环境工程学院,山东济南250353

出　　处：《安徽农业科学》2008年第30期13292-13292,13361,共2页Journal of Anhui Agricultural Sciences

基　　金：山东省科技攻关项目(501154)

摘　　要：[目的]研究了印度芥菜对石灰性土壤中难溶态铅的吸收、活化和积累规律。[方法]采用盆栽试验,研究了印度芥菜对石灰性土壤中难溶态Pb吸收的影响和对石灰性Pb污染土壤的修复效率。[结果]印度芥菜能够吸收石灰性土壤中难溶态铅并正常生长。印度芥菜吸收的铅80%以上累积在根部,根际与非根际土壤中DTPA提取的铅含量差异不显著。在该试验条件下,印度芥菜对土壤中铅的净化率为0.01～0.02%。[结论]印度芥菜对模拟石灰性污染土壤中难溶态Pb的净化效果不理想。[ Objective ] The rules of uptake and activation of insoluble Pd in calcareous,soil by Brassica juncea were studied. [Method] The pot experiment was carried out to study the effect of Brassiea juncea on the absorption of insoluble Pb and the purification efficiency. [Result] Indian mustard could absorb insoluble Pb and grew well.Pb uptake by Brassicajuncea was existed in root and higher than 80% .The difference DTPA-extractable Pb in rhizosphere and non-rhizosphere of Brassicajuncea was not significant.The Pb purification rote of the soil by Brassicajuncea was 0.01%-0.02% at this test condition. [ Conclusion] The effect of Brassica juncea on the purification of insoluble Pb in simulated calcareous polluted soil was not ideal.

关 键 词：印度芥菜 土壤 铅 吸收 活化 

分 类 号：S562.035.3[农业科学—作物学]