水土保持学报2013，Vol.27Issue(4)：217-221,5.
添加巨大芽孢杆菌与胶质芽孢杆菌对土壤DTPA提取态Cd的影响
Effect of Bacillus megaterium and Bacillus mucilaginosus on Soil DTPA Extractable Cd
摘要
Abstract
In order to investigate the impact of Bacillus megaterium,Bacillus mucilaginosus and the mixture of both bacteria on soil DTPA extractable Cd,short-term and long-term incubation experiments were carried out.The results on short-term test showed that soil Cd was activated after adding Bacillus megaterium to soil,soil DTPA extractable Cd increased by 3.8％ ～24.4％ under different Cd pollution levels.Under 50 mg/kg CdCO3 level,soil Cd achieved maximum activation effect which adding 2 ml Bacillus megaterium to soil,but both Bacillus mucilaginosus and the mixture bacteria had no significant impact on soil Cd or even passivation.Results on long-term test showed that Bacillus megaterium also activated soil Cd under the original Cd polluted level,the soil DTPA extractable Cd increased by 44.0％ and 28.9％ respectively compared with the control after adding 10 ml and 20 ml Bacillus megaterium to soil,while both Bacillus mucilaginosus and the mixture bacteria had no significant impact on soil Cd or even passivation,which was similar to those obtained in short-term test.关键词
巨大芽孢杆菌/胶质芽孢杆菌/土壤DTPA提取态CdKey words
Bacillus megaterium / Bacillus mucilaginosus / soil DTPA extractable Cd分类
资源环境引用本文复制引用
王小敏,刘文菊,张丽娟,刘微,李博文,杨志新..添加巨大芽孢杆菌与胶质芽孢杆菌对土壤DTPA提取态Cd的影响[J].水土保持学报,2013,27(4):217-221,5.基金项目
国家自然科学基金项目(31272253) （31272253）
