CAJ | 학술논문

商陆是在中国境内发现的多年生、草本型锰超积累植物.通过室内土培试验,评价商陆对土壤中锰的去除潜力,确定最佳收获时间,以期达到最佳的重金属污染土壤植物修复效果.结果表明：商陆能将土壤中的锰转运到地上部位,叶片中 Mn 含量最高,平均值为17043 mg/kg DW,远远大于茎和根的锰含量均值；单株的平均富集量在浓度为500 mg/kg DW 时达最高,一棵商陆可富集平均13 mg 的 Mn；动态修复中确定的最佳收获时间为60 d,不同时间收获的商陆地下部分生物量差异不明显(P ＞0．05),地上部分则差异较大.连续收获不改变其锰生物富集能力.这表明商陆对锰有较强的富集能力,是一种优良的修复锰污染土壤的物种,对土壤重金属污染的治理及植物修复领域数据库的完善具有重要意义.
상륙시재중국경내발현적다년생、초본형맹초적루식물.통과실내토배시험,평개상륙대토양중맹적거제잠력,학정최가수획시간,이기체도최가적중금속오염토양식물수복효과.결과표명：상륙능장토양중적맹전운도지상부위,협편중 Mn 함량최고,평균치위17043 mg/kg DW,원원대우경화근적맹함량균치；단주적평균부집량재농도위500 mg/kg DW 시체최고,일과상륙가부집평균13 mg 적 Mn；동태수복중학정적최가수획시간위60 d,불동시간수획적상륙지하부분생물량차이불명현(P ＞0．05),지상부분칙차이교대.련속수획불개변기맹생물부집능력.저표명상륙대맹유교강적부집능력,시일충우량적수복맹오염토양적물충,대토양중금속오염적치리급식물수복영역수거고적완선구유중요의의.
Phyloalcca acinosa found in the territory of China is a kind of perennial and herbaceous manganese hyper-accumulator plant.In order to achieve the best effect of repairment,the potential of P .acinosa for removal of manga-nese in soil were evaluated,and confirmed the optimal harvest time,used by the indoor test of earth culture.The re-sults showed that P .acinosa could transport Mn in soil to its aerial part.The Mn concentration in its leaves was the maximum,its average value was 17 043 mg/kg DW,and much greater than the average value of Mn concentration in its stems and roots separately.The average enrichment capacity of single plant reached the highest value when the concentration was 500 mg/kg DW.One Phyloalcca acinosa could enriched 13 mg Mn averagely.It was determinated that its best harvest time was 60 d in the dynamic experiment,the foot end’s biomass of P .acinosa which was reaped in different time had unconspicuous diversity (P >0.05),while the aerial part had a bigger diversity.Sequen-tial harvest wouldn’t change the biological concentration ability of P .acinosa to Mn.These results indicated that P . acinosa had a strong accumulation ability to manganese,and it was a kind of excellent species to repair Mn-contami-nated soil.This was significant for the treatment of heavy metal pollution of soil and the improvement of database in the field of phytoremediation.