CAJ | 학술논문

为茭白在水体铬污染修复的运用提供科学依据，在模拟小型湿地试验系统中，用不同浓度（0，5 mg/L，10 mg/L，20 mg/L，40 mg/L，60 mg/L）的含铬（Ⅵ）废水进行污染胁迫，研究在不同 Cr（Ⅵ）浓度处理下，茭白的生长状况、各器官中铬的含量与积累量及其亚细胞的分布特征。结果表明，不同铬浓度处理下，茭白各器官生物量表现为根＞叶＞茎，且在铬胁迫浓度为20 mg/L时，株高、根长、生物量均较大；相同 Cr浓度胁迫下，不同器官中铬含量不同，总趋势为茎＞根＞叶；茭白对铬的耐性指数与转运系数均较高，且在20 mg/L时最高；茭白各器官亚细胞中铬分布总趋势为胞液＞细胞壁＞细胞器。结论：茭白对低浓度（0～20 mg/L）水体铬污染具有较强的积累力、转运力和耐受力，在水体铬污染植物修复中具有一定的应用价值。
위교백재수체락오염수복적운용제공과학의거，재모의소형습지시험계통중，용불동농도（0，5 mg/L，10 mg/L，20 mg/L，40 mg/L，60 mg/L）적함락（Ⅵ）폐수진행오염협박，연구재불동 Cr（Ⅵ）농도처리하，교백적생장상황、각기관중락적함량여적루량급기아세포적분포특정。결과표명，불동락농도처리하，교백각기관생물량표현위근＞협＞경，차재락협박농도위20 mg/L시，주고、근장、생물량균교대；상동 Cr농도협박하，불동기관중락함량불동，총추세위경＞근＞협；교백대락적내성지수여전운계수균교고，차재20 mg/L시최고；교백각기관아세포중락분포총추세위포액＞세포벽＞세포기。결론：교백대저농도（0～20 mg/L）수체락오염구유교강적적루력、전운력화내수력，재수체락오염식물수복중구유일정적응용개치。
Z.latifolia plants were cultivated in waste water with different Cr concentrations to study their growth status,Cr accumulation in different organs and sub-cellular distribution characteristics under different Cr stress and to provide the scientific basis for phytoremediation of;Z.latifolia in Cr pollution of water.The biomass of different organs was root leaf stem under different Cr concentrations and Z. latifolia had higher height,root length and biomass when Cr concentration was 20mg/L.The general trend of Cr content and Cr accumulation in different organs was stem root leaf and root stem leaf under the same Cr concentration.Z.latifolia had higher Cr tolerance index and transfer coefficient and the Cr tolerance index and transfer coefficient was up to the highest when Cr concentration was 20mg/L.Cr was distributed in cell wall and cytosol mainly and the general trend of Cr distribution in sub-cellular level was cytosol cell wall organelle.In conclusion,Z.latifolia with the strong accumulation ability,transfer ability and tolerance to Cr with 0-20 mg/L concentration can be applied in phytoremediation of Cr pollution water.