| 引用本文: | 黄建祥, 李素丽, 吕钊彦, 李志刚, 康 亮, 何 冰.六价铬对薏米人工湿地微生物群落数量的影响[J].广西植物,2013,(2):253-257.[点击复制] |
| HUANG Jian-Xiang, LI Su-Li, LÜ Zhao-Yan,.Effects of Cr6+ on microorganism population in[J].Guihaia,2013,(2):253-257.[点击复制] |
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| 摘要: |
| 通过桶栽构筑微型模拟垂直流薏米人工湿地(CAW),以1/2 Hoaglands营养液为营养源,在营养液中添加不同浓度的Cr6+(0,5,20,40,60 mg/L,以K2Cr2O7配置),各浓度处理均以不种植薏米湿地(NPW)为对照,以研究铬(Cr6+)对薏米人工湿地基质真菌、细菌及放线菌群落结构数量的影响。结果表明:(1)真菌、细菌、放线菌的数量在薏米人工湿地(CAW)中明显多于无植物对照处理(NPW);(2)中低浓度(5、20 mg/L)Cr6+对CAW真菌,对NPW细菌、放线菌数量有促进作用,薏米人工湿地微生物对低中浓度的Cr6+胁迫有一定的耐受能力。 |
| 关键词: 六价铬 人工湿地 真菌 细菌 放线菌 |
| DOI：10.3969/j.issn.1000-3142.2013.02.022 |
| 分类号:X172.1 |
| 基金项目: |
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| Effects of Cr6+ on microorganism population in |
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HUANG Jian-Xiang, LI Su-Li*, LÜ Zhao-Yan,
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College of Agriculture, Guangxi University, Nanning 530005, China
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| Abstract: |
| The effects of hexavalent chromium on fungi,bacteria and actinomycetes communities were studied by constructed a minitype tubs-vertical flow Coix aquatica wetland(CAW),adding 1/2 Hoaglands nutrient solution plus 0,5,20,40,60 mg/L K2Cr2O7 respectively,and constructing a no plant wetland(NPW)which corresponding nutrient and hexavalent chromium concentrations as control experiment. The results as follows:(1)The populations of fungi,bacteria and actinomycetes in CAW were bigger than that in NPW;(2)Low or middle level hexavalent chromium concentrations(5,20 mg/L)had stimulative effect on fungi in CAW and bacteria,actinomycetes in NPW. Microorganism population in C.aquatica constructed wetlands had the tolerant ability under the low or middle(5,20 mg/L)Cr6+ stress. |
| Key words: hexavalent chromium constructed wetland fungi bacteria actinomycetes |
