农业资源与环境学报Issue(1)：62-68,7.DOI:10.13254/j.jare.2013.0205
蓖麻（Ric inus communist L.）对锰矿区土壤中重金属累积特性的研究
Accumulation of Heavy Metals in Ricinus communis L. from Mn Contaminated Area
摘要
Abstract
Xiangbi No. 1 and Zibi No. 7 were planted in the Mn contaminated soils to explore its potential of ecological remediation and ener-gy utilization in the areas of Mn contaminated site. The major nutrient elements and the concentrations of heavy metals(Mn, Pb, Zn, Cu and Cr)in different parts(root, branch and leaf)and topsoil samples were detected after entering into the period of reproductive growth. The results showed that the average content of Mn was as high as 7 884.96 mg·kg-1 ,which exceeded 6.5 times of national soil environmental quality standard (level 2).The mean level of Mn in tissues of Xiangbi No. 1 was found to be in the sequence of root>leaf>branch,whereas, the mean level of Mn in different parts of Zibi No. 7 was found to be in the order of leaf>fruit>branch>root respectively. The average concen-tration of Mn in the leaf reached the peak value (765.43 mg·kg-1 ),which was higher than Xiangbi No.1 about 79.53%.The leaf/root ratios of Pb, Cu, Cr contents in Zibi No. 7 were higher than those of Xiangbi No. 1 samples.The accumulation and translocation in plants was affect-ed by different heavy metal elements in soils.The results demonstrated that Zibi No. 7 had a better uptake and translocation capacity of Mn, Pb,Cu and Cr, meanwhile,plants of two species had differences in accumulation and translocation ability and were proved to possess good Mn-tolerance ability for remediation of heavy metal contaminated soils .关键词
蓖麻/锰矿/耐受性/重金属积累Key words
Ricinus communist L./manganese mine/tolerance/heavy mental accumulation分类
资源环境引用本文复制引用
易心钰,刘强,罗明亮,陈韵竹,蒋丽娟..蓖麻（Ric inus communist L.）对锰矿区土壤中重金属累积特性的研究[J].农业资源与环境学报,2014,(1):62-68,7.基金项目
国家“十二五”科技支撑计划“废弃矿区植物生态修复与安全屏障建设关键技术试验与示范” （）
