中文摘要：

试验研究高、中、低浓度(其TN含量分别为26.560、18.150和10.760 mg/L,TP含量分别为2.566、1.710、0.855 mg/L,NH4+-N含量分别为23.880、16.190、7.970 mg/L,NO3-N含量分别为0.100、0.068、0.032mg/L)生活污水胁迫对挺水植物茭草、水葱和沉水植物眼子菜、金鱼藻、苦草5种水生植物相对生长速率及丙二醛、相对电导率、脯氨酸、可溶性还原糖等生理指标的影响,探讨供试植物抗逆能力及在不同浓度生活污水中的生理响应。结果表明,挺水植物抗逆能力明显强于沉水植物,挺水植物中,水葱的抗逆能力强于茭草;沉水植物中,抗逆能力为苦草】眼子菜】金鱼藻。比较分析同一植物对不同浓度污水的反应得出,茭草在高浓度污水中生长较好,水葱及眼子菜能适应中浓度污水,苦草能适应低浓度污水,金鱼藻不适宜在污水中生长。

英文摘要：

Experiment was carried out to study the effects of domestic sewage with different concentration,(of which total nitrogen content was 26.560,18.150,10.760 mg / L,total phosphorus content was 2.566,1.710,0.855 mg / L,NH4 +-N content was 23.880,16.190,7.970 mg / L,NO3-N content was 0.100,0.068,0.032 mg / L respectively) on relative growth rate and physiological indices(relative conductivity,content of MDA,proline and soluble sugars) on 5 kinds of hydrophytes(Zizania caduciflora,Schoenoplectus tabernaemontani,Potamogeton distinctus,Ceratophyllum demersum,Vallisneria natans),aiming at exploring the physiological response and resistance to domestic sewage of the plants.The results showed that resistance of emergent plant was stronger than submerged plant.Resistance of emergent plant S.tabernaemontani was stronger than Z.caduciflora.The rank of resistance of the submerged plant from strong to weak was V.natans > P.distinctus > C.demersum.Comparative analysis on the response of same plants to different concentration of sewage revealed that Z.caduciflor grew well in sewage with high concentration,S.bulrush and P.distinctus could adapt to the sewage with middle concentration,V.natans could adapt to the sewage with low concentration,and C.demersum was not suitable for growing in the sewage.