【摘要】 以千屈菜(Lythrum salicaria)、泽泻(Alisma plantago-aquatica)、菖蒲(Acorus calamus)、雨久花(Monochoria korsakowii)、慈姑(Sagittaria sagittifolia)5种水生植物为试验材料,利用人工模拟方法,研究污染水体对这5种植物生长、生理的影响。结果表明:在污染水体中菖蒲、雨久花生长最好,千屈菜较好,而泽泻与慈姑稍差。试验结束时,菖蒲、千屈菜、雨久花及泽泻对水体中总氮、总磷去除效果显著,总氮的去除率均在90%以上,总磷的去除率分别为96.13%、83.61%、75.84%和77.70%。5种植物在污染水体中都具有较好的生理效应,其叶绿素a、叶绿素b、总叶绿素含量及可溶性蛋白质含量在试验前中期增加显著,而后期略有下降,最后恢复至试验前水平。更多还原

【Abstract】 The growth and physiological properties of 5 high aquatic plants in waste water were compared in the manipulative indoor experiment.The results showed that Acorus calamus,Monochoria korsakowii,and Lythrum salicaria grewbetter than Alisma plantago-aquatica and Sagittaria sagittifolia.The treatment system with hydrophytes had a higher removal efficiency to total nitrogen(TN) and total phosphorus(TP) than that without hydrophytes.Except S.sagittifoli,the four plants had remarkable effects on removing TN and TP from the wastewater.The removal rates to TN were over 90 %.The removal rates of the four plants to TP were 96.13%,83.61%,75.84%,and 77.70%,respectively still the end of the experiment.Chla,Chlb Chl(a+b),and soluble protein contents of the five plants increased significantly in the early period.With the water quality improving,most physiological indices of the five plants were closed to the steady level before the experiment.更多还原