水土保持学报2011，Vol.25Issue(6)：207-210,215,5.
先锋植物对铅锌尾矿库重金属污染的修复作用
Pioneer Species on Remediation of Heavy Metal Contamination in Lead/Zinc Mine Tailings Pond
摘要
Abstract
Through field investigation, three pioneer species, Miscanthus floridulus, Polygonum flaccidum Meissn. And Lespedeza cuneata , lived in lead/zinc mine tailings pond of Huayuan in Xiangxi were found. The physical and chemical properties of the soil, the uptake and translocation of Pb.Zn and Cd in pioneer species and heavy metal forms change and properties in rhizosphere soils were studied. The results showed that the inhabitation of the three pioneer species could improve the content of organic matter, total nitrogen and the water bound to soil, and reduce pH of the rhizosphere soils. The three pioneer species had strong accumulate ability on Zn, and had bad accumulation ability on Pb, Cd. By promoting the transformation process from residuals fractions to weakly bound fractions, the growth of the three pioneer species could alter the distribution of Pb, Zn and Cd to change into availability of Pb, Zn and Cd in rhizosphere soils. The natural inhabitation by the Miscanthus floridulus, Polygonum flaccidum Meissn. And Lespedeza cuneata , did great benefits to the remediation of heavy-metal contamination in lead/zinc mine tailings pond.关键词
铅锌尾矿库/先锋植物/重金属污染/修复Key words
lead/zinc mine tailings pond/ pioneer species/ heavy metal contamination/ remediation分类
资源环境引用本文复制引用
朱佳文,邹冬生,向言词,谭淑端,刘灿,刘文祥..先锋植物对铅锌尾矿库重金属污染的修复作用[J].水土保持学报,2011,25(6):207-210,215,5.基金项目
湖南省科技厅科技计划项目(2010NK3020) （2010NK3020）
湖南省教育厅重点项目(10A031) （10A031）
湖南省教育厅项目(10C0806) （10C0806）
