%0 Journal Article
%T Phytoremediation of Polychlorinated Biphenyls Contaminated Soil by Leguminosae-Gramineae Intercropping: A Field Trial<br>多氯联苯污染土壤的豆科-禾本科植物田间修复效应
%A TU Chen
%A TENG Ying
%A LUO Yong-ming
%A PAN Cheng
%A SUN Xiang-hui
%A LI Zhen-gao
%A <br>涂晨
%A 滕应
%A 骆永明
%A 潘澄
%A 孙向辉
%A 李振高
%J 环境科学
%D 2010
%I 
%X Phytoremediation of polychlorinated biphenyls (PCBs) contaminated soil by leguminosae (alfalfa) and gramineae (ryegrass and tall fescue) was studied in a field trial. All planted treatments had significantly higher PCBs removal efficiency compared with those of unplanted control after 270 days of in-situ phytoremediation. Alfalfa monoculture received the highest removal efficiency of soil PCBs by 59.6%. Analysis of PCBs congeners composition showed that the percentage of di-chlorinated biphenyl decreased in all planted treatments. Alfalfa produced the maximum biomass among the 3 plants. Total PCBs concentration in alfalfa roots reached 355.1 microg/kg, which was significantly higher than those in ryegrass and tall fescue. The phytoextraction efficiency of different treatment was in order of alfalfa > alfalfa-ryegrass-tall fescue > alfalfa-ryegrass > ryegrass > alfalfa-tall fescue > tall fescue. The results suggest that alfalfa may be an ideal candidate for the phytoremediation of PCBs contaminated soil.
%K 多氯联苯
%K 紫花苜蓿
%K 黑麦草
%K 高羊茅
%K 植物修复
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=3CA7D257CCF3D8B75AB6CEB58A4B306C&yid=140ECF96957D60B2&vid=4AD960B5AD2D111A&iid=59906B3B2830C2C5&sid=F7A972A4989AB38B&eid=2D6A8CD35F712F74&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=0