可降解螯合剂及微生物强化植物吸收重金属的研究

添加不同微生物、不同比例的螯合剂（EDDS∶EL）,进行五因素四水平的正交试验,研究龙葵和羽叶鬼针草对复合污染型土壤中Cd和Pb的吸收能力。结果表明,龙葵对铅和镉具有超富集作用,适宜的螯合剂比例、微生物种类有利于提高植物对镉、铅的吸收能力。当土壤中镉投加浓度为60 mg.kg-1,铅投加浓度为1 800mg.kg-1,EDDS∶EL比例为1∶1,接种ZC或Z11,龙葵对镉的吸收量最大;土壤中镉投加浓度为30 mg.kg-1,铅投加浓度为1 800 mg.kg-1,EDDS∶EL比例为1∶0,接种ZC,龙葵对铅的吸收效果最好。...

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Published in东北农业大学学报 Vol. 42; no. 8; pp. 101 - 107
Main Author 佟秀春 王旭梅 王红旗 耿印印
Format Journal Article
LanguageChinese
Published 东北农业大学资源与环境学院,哈尔滨,150030%东北农业大学资源与环境学院,哈尔滨150030 2011
北京师范大学水科学研究院,北京100875%北京师范大学水科学研究院,北京,100875
Subjects
吸收积累
复合污染
微生物
植物
螯合剂
植物
吸收积累
微生物
复合污染
螯合剂
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ISSN1005-9369
DOI10.3969/j.issn.1005-9369.2011.08.020

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Summary:添加不同微生物、不同比例的螯合剂（EDDS∶EL）,进行五因素四水平的正交试验,研究龙葵和羽叶鬼针草对复合污染型土壤中Cd和Pb的吸收能力。结果表明,龙葵对铅和镉具有超富集作用,适宜的螯合剂比例、微生物种类有利于提高植物对镉、铅的吸收能力。当土壤中镉投加浓度为60 mg.kg-1,铅投加浓度为1 800mg.kg-1,EDDS∶EL比例为1∶1,接种ZC或Z11,龙葵对镉的吸收量最大;土壤中镉投加浓度为30 mg.kg-1,铅投加浓度为1 800 mg.kg-1,EDDS∶EL比例为1∶0,接种ZC,龙葵对铅的吸收效果最好。
Bibliography:TONG Xiuchun,WANG Xumei,WANG Hongqi,GENG Yinyin（1.College of Resources and Environmental Sciences,Northeast Agricultural University,Harbin 150030,China;2.Water Science Institute,Beijing Nornal University,Beijing 100875,China）
Five-factor and four-level orthogonal experiments were designed to study absorption of cadmium and led by Solanum and Biden from compound pollution soil,with adding different microbe and different ratio of chelating agents.The results showed that solanum had super cumulative effect on cadmium and lead,the suitable ratio,microbe were helpful to absorption of cadmium and lead by plants： cadmium adding concentration was 60 mg·kg-1 in soil,led adding concentration was 1 800 mg·kg-1,EDDS： EL ratio was 1：1,inoculating ZC or Z11,and the absorptive capacity of cadmium was higher;cadmium adding concentration was 30 mg·kg-1 in soil,lead adding concentration was 1 800 mg·kg-1,EDDS：EL ratio was 1：0,inoculating Z11,and the absorption effect of lead was the best.
23-1391/S
compound pollution; absorption
ISSN:1005-9369
DOI:10.3969/j.issn.1005-9369.2011.08.020