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中文摘要：
采用水培实验的方法,研究了黑麦草对铜和芘复合污染体系的修复能力、黑麦草不同部位对铜和芘的富集效应.结果表明,黑麦草能在96 h内使水体中铜和芘的浓度显著降低,分别由5 mg.L-1和0.1 mg.L-1降低至0.49 mg.L-1和0.009 mg.L-1;黑麦草根部对铜和芘的积累量和富集系数明显大于茎叶,随着铜处理浓度的增加,根和茎叶中铜的积累量随之增加,而根中铜的生物富集系数却随之降低,黑麦草根和茎叶中芘的积累量分别在4.65—5.39 mg.kg-1和0.81—1.08 mg.kg-1之间,铜对水体中芘的去除以及根和茎叶中芘的积累均无显著性影响.
英文摘要：
A hydroponic experiment was conducted to investigate the capacity of Lolium multiflorum Lam（ryegrass） to remove copper and pyrene in water,focusing on the effect of different parts of ryegrass on Cu and pyrene enrichment.The results revealed that within 96 h,the concentrations of copper and pyrene decreased,from 5.00 mg · L-1 and 0.10 mg · L-1 to 0.49 mg · L-1and 0.009 mg · L-1,respectively.The contents and biological concentration factor（BCF） of copper in ryegrass root exceeded those in shoot.With increasing copper concentration,the accumulation of copper in root and shoot was enhanced,while BCF in root was decreased.The accumulation of pyrene by root and shoot of ryegrass was 4.65—5.39 mg · kg-1 and 0.81—1.08 mg · kg-1,respectively.Copper had no significant effects on both the removal of pyrene from the solution and the accumulation of pyrene in root and shoot of ryegrass.
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