CAJ | 학술논문

为探讨蓖麻（Ricinus communist L.）对锰矿区土壤生态修复及能源化利用潜力，将不同品种蓖麻湘蓖1号和淄蓖7号播种在锰尾矿库土壤上，进入生殖生长阶段时采收全株，测定栽植土壤及植株根、茎、叶中5种重金属元素含量。结果显示：土壤中Mn平均含量最高达7884.96 mg·kg-1，超过国家规定的土壤环境质量域级标准6.5倍；湘蓖1号不同器官的Mn浓度从高至低为根>叶>茎，淄蓖7号不同器官Mn含量叶>茎>根，其叶中Mn平均浓度最高为765.43 mg·kg-1，较湘蓖1号叶中的平均含量高出79.53%， Pb、Cu、Cr含量及叶/根比值均大于湘蓖1号；植株体内重金属含量与土壤中重金属浓度的相关分析表明，重金属的积累量和转移量，受到土壤中几种重金属元素的共同影响。结果说明：2个品种的蓖麻均可以作为锰矿区能源化修复利用，对重金属的吸收和转运在品种间存在差异，淄蓖7号地上部分对重金属的迁移能力强于湘蓖1号。
위탐토비마（Ricinus communist L.）대맹광구토양생태수복급능원화이용잠력，장불동품충비마상비1호화치비7호파충재맹미광고토양상，진입생식생장계단시채수전주，측정재식토양급식주근、경、협중5충중금속원소함량。결과현시：토양중Mn평균함량최고체7884.96 mg·kg-1，초과국가규정적토양배경질량역급표준6.5배；상비1호불동기관적Mn농도종고지저위근>협>경，치비7호불동기관Mn함량협>경>근，기협중Mn평균농도최고위765.43 mg·kg-1，교상비1호협중적평균함량고출79.53%， Pb、Cu、Cr함량급협/근비치균대우상비1호；식주체내중금속함량여토양중중금속농도적상관분석표명，중금속적적루량화전이량，수도토양중궤충중금속원소적공동영향。결과설명：2개품충적비마균가이작위맹광구능원화수복이용，대중금속적흡수화전운재품충간존재차이，치비7호지상부분대중금속적천이능력강우상비1호。
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 .