【摘要】 通过采用两处不同浓度富营养化水体对高羊茅进行灌溉,研究了高羊茅生理生态特征响应。结果表明:稀释后的富营养化水体能显著促进高羊茅根系生长,当稀释浓度大于50%时,不利于株高的增长。富营养化水体的各个浓度对高羊茅叶绿素各项指标无显著影响。各富营养化水体稀释后灌溉高羊茅,对其游离脯氨酸、可溶性糖、丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性的影响与对照相比差异不显著,外环水体能显著促进高羊茅过氧化物酶(POD)活性增加,稀释浓度为75%能使高羊茅过氧化氢酶(CAT)活性显著增加。综上分析表明,富营养化水体稀释后灌溉高羊茅是可行的,且生活区污水更适合用于高羊茅的灌溉。更多还原

【Abstract】 Effects of different concentrations of eutrophic water on physio-ecological characteristics of Festuca arundinacea L.was investigated.The results showed that the diluted eutrophic water could significantly promote root growth of F.arundinacea.When diluted concentration was more than 50%,it inhibited plant height growth.Diluted concentration of the eutrophic waters had no significant effect on chlorophyll content,proline,soluble sugar,malondialdehyde(MDA) content,super-oxide dismutase(SOD) activity of F.arundinacea L..The outer ring water could promote peroxidase(POD) activity,and 75% concentration could increase catalase(CAT) activity.From the analyses above,it could be concluded that irrigation with diluted eutrophic water would be feasible to F.arundinacea L.,and quarters water was optimal for the irrigation.更多还原