| 栾树对土壤多环芳烃修复机制初探 |
| |
| 引用本文： | 朱凡,田大伦,闫文德,梁小翠,王光军.栾树对土壤多环芳烃修复机制初探[J].西北林学院学报,2011,26(1):52-55. |
| |
| 作者姓名： | 朱凡 田大伦 闫文德 梁小翠 王光军 |
| |
| 作者单位： | 中南林业科技大学生态教研室; |
| |
| 基金项目： | 国家自然科学基金(3107041011,30571487,30771700,30870455); 国家林业局“948”项目(2008-4-36,2007-4-19); 湖南省科技厅重点项目(06FJ3083、05NK3026); 湖南省杰出青年基金项目(07JJ1004); 中南林业科技大学青年科学研究基金(2008003A,07024B) |
| |
| 摘 要： | 多环芳烃(PAHs)是一类广泛存在于环境中的有机污染物,由于其致癌性和致突变性而受到广泛关注。采用盆栽实验,研究了栾树在3种污染水平下对土壤中PAHs的去除效果与修复机制。结果表明:在试验浓度范围内(7.35～46.23 mg.kg-1),种植栾树1 a后,PAHs降解率为60.69%～75.14%;比对照(无植物处理)PAHs降解率平均提高了22.96%,且以L2污染水平下降解率最大。栾树能够在一定程度上吸收与累积土壤中PAHs,且累积量与土壤PAHs的添加浓度呈正相关,根部PAHs累积量大于干叶部。修复机制反映出植物-微生物间的交互作用、微生物降解是修复土壤PAHs的主要途径。
|
| 关 键 词： | 多环芳烃 修复 栾树 |
Phytoremediation of Polycyclic Aromatic Hydrocarbons Contaminated Soils by Koelreuteria bipinnata |
| |
| ZHU Fan,TIAN Da-lun,YAN Wen-de,LIANG Xiao-chui,WANG Guang-jun.Phytoremediation of Polycyclic Aromatic Hydrocarbons Contaminated Soils by Koelreuteria bipinnata[J].Journal of Northwest Forestry University,2011,26(1):52-55. |
| |
| Authors: | ZHU Fan TIAN Da-lun YAN Wen-de LIANG Xiao-chui WANG Guang-jun |
| |
| Institution: | ZHU Fan,TIAN Da-lun,YAN Wen-de,LIANG Xiao-chui,WANG Guang-jun(Research Section of Ecology,Central South University of Forestry & Technology,Changsha,Hunan 410004,China) |
| |
| Abstract: | Polycyclic aromatic hydrocarbons(PAHs) are a group of organic pollutants which exist in the environments chronically.They are of particular concern because some are potent toxins or carcinogenics.In this study,pot experiments were carried out to investigate the mechanisms of the removal and accumulation of PAHs in soil by Koelreuteria bipinnata.The results showed that the plantat can significantly remove PAHs from soil at their initial contaminated levels.The contents of PAHs were lower in planted soil than... |
| |
| Keywords: | PAHs phytoremediation Koelreuteria bipinnata |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《西北林学院学报》浏览原始摘要信息 |
| 点击此处可从《西北林学院学报》下载免费的PDF全文 |
|
