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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (4): 295-299.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

苏丹草对土壤中菲、芘修复作用的研究

梁涛1,2,黄建国1,王永敏1,陈艳3   

  • 收稿日期:2009-11-02 出版日期:2010-02-20 发布日期:2010-02-20

Research on the remediation of phenanthrene and pyrene in soil by sudan grass

  • Received:2009-11-02 Online:2010-02-20 Published:2010-02-20

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摘要：

采用盆栽试验法，研究苏丹草对土壤中菲、芘的去除效果，及土壤菲、芘残留量与多酚氧化酶和脲酶活性之间的关系。结果显示，在菲、芘去除中，植物—微生物联合修复起到了主要作用，50d试验完成后，去除率分别达到了68.9%和71.24%；对酶活性与菲、芘残留量进行相关性分析得出，当酶的活性高时，对菲、芘的去除率也增高；种植植物可以增加微生物酶的活性，从而提高菲芘去除率，较无植物处理分别增高了51.7%和55.54%。说明植物—微生物联合修复可以作为多环芳烃修复的一种主要途径，并且也可用脲酶的活性作为土壤中菲、芘污染生态毒理指标。

关键词: 东乡野生稻, 东乡野生稻, 普通栽培稻, NDF, ADF, ADL

Abstract:

By pot culture, Study on Removal Efficiency of phenanthrene and pyrene in soil by sudan grass, and the correlation between phenanthrene and pyrene residual quantity and the polyphenol oxidase and urease activity. The results showed that in the Philippines, pyrene removal, plant - micro-organisms joint repair play a major role on the removal of phenanthrene and pyrene, after 50d pot culture experiment, the removal rates respectively reached 68.9% and 71.24%; the correlation analysis on enzyme activity and phenanthrene and pyrene residue residual quantity concludes that when the enzyme activity is high, the Philippines and pyrene removal was also higher; cultivation of plants can increase the activity of microbial enzymes, thus enhance phenanthrene and pyrene removal rate, respectively higher than the non-plant processing 51.7%, and 55.54 %. The result shows that plant - microorganism combined bioremediation can be used as a primary means of polycyclic aromatic hydrocarbons remediation, and soil urease activity can also be used as a indicator of the soil phenanthrene and pyrene pollution eco-toxicological.