| 六种野草对土壤中菲的降解研究 |
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| 引用本文： | 杨红军,谢文军,陈志英,陆兆华.六种野草对土壤中菲的降解研究[J].土壤通报,2012(5):1242-1246. |
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| 作者姓名： | 杨红军 谢文军 陈志英 陆兆华 |
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| 作者单位： | 山东省黄河三角洲生态环境重点实验室滨州学院;胜利油建七分公司;中国矿业大学(北京)恢复生态学研究所 |
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| 基金项目： | 山东省博士基金(2008BS09024);滨州市科技发展计划项目(200818);服务滨州科学发展行动计划项目(BZXYFB20110501)资助 |
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| 摘 要： | 研究了六种野草对菲污染土壤的修复作用和降解途径。通过60 d的温室盆栽试验,观察到:对菲浓度为100 mg kg-1的污染土壤,六种野草表现出了不同的去除能力:狐尾草>狗尾草>蟋蟀草>稗草>高羊茅>碱蓬。其中种植狐尾草、狗尾草、蟋蟀草的菲污染土壤菲去除率分别达到了:81.53%,78.02%和76.01%,碱蓬仅为42.86%。利用GC-MS联用仪初步研究了菲的降解途径,结果表明:菲主要按照邻苯二甲酸途径进行降解,降解产物主要有:长链正代烷烃、邻苯二甲酸酯类、长链正代醛和长链有机酸。中间产物最终进入TCA循环,降解为二氧化碳和水。
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| 关 键 词： | 植物修复 多环芳烃 菲 污染土壤 GC-MS |
Decontamination of Six Grass Species to Phenanthrene in Soil |
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| YANG Hong-jun,XIE Wen-jun,CHEN Zhi-ying,LU Zhao-hua.Decontamination of Six Grass Species to Phenanthrene in Soil[J].Chinese Journal of Soil Science,2012(5):1242-1246. |
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| Authors: | YANG Hong-jun XIE Wen-jun CHEN Zhi-ying LU Zhao-hua |
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| Institution: | 1,3(1.Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta,Binzhou University,Binzhou,Shandong 256603,China;2.The,7th Branch Office,Shengli Oil Company,Binzhou University,Binzhou,Shandong 256603,China;3.Institute of Restoration Ecology,China University of Mining and Technology,Beijing 100083,China) |
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| Abstract: | The decontamination efficiency and pathway of six grass species to phenanthrene in soil were studied by pot experiments in a greenhouse.Results showed that the removal efficiency varied greatly among plant species when the initial concentration of phenanthrene was at 100 mg kg-1.The degradative ability in plants showed following sequence as Alopecurus pratensis>Setaria viridi > Eleusine indica > Echinochloa crusgalli(L.) Beauv.> Festuca elata > Suaeda salsa.About 81.53%,78.02% and 76.01% of phenanthrene was removed from the soil under Alopecurus pratensis,Setaria viridi and Eleusine indica,respectively.It was just 42.86% for Suaeda salsa.We studied the degradative pathway of phenanthrene by the means of mass.These results indicated that phenanthrene was degredated mainly according to the pathway of o-phthalic acids.The intermediate products were long-chain aliphatic hydrocarbons,phthalic ester,long-chain aliphatic aldehydes and long-chain organic acids.Lastly,most of them took part in the TCA circle and degraded to CO2 and H2O. |
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| Keywords: | Phytorem ediation PAHs Phenanthrene Contamination soil GC-MS |
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