用二级城市污水灌溉草坪

Secondary Municipal Effluent on Lrrigation of Turfgrass

通过对草坪草污水灌溉与清水灌溉的比较研究 ,确定了草坪草污水灌溉的可行性。试验采用二级处理城市混合污水 ;选用草地早熟禾、多年生黑麦草、高羊茅和中华结缕草为供试草种 ;以草坪草脯氨酸积累量、过氧化氢酶活性及细胞膜透性 3个生理指标和草坪草的地下生物量一个生物学指标作为评价。分别在草坪草受适度低温胁迫时。冷季型草坪草的最适生长时及高温胁迫时测试污水灌溉和清水灌溉草坪的差异。得出清水与污水灌溉下草坪草无显著差异的结论 。

To reuse water, comparisons was made on effluent irrigateded turfgrass and tap water irrigated tur fgrass. Four species, including kentucky bluegrass, perennial ryegrass, tall rescue and zoysia grass were selected in the experiment. In addition to the under ground biomass, the indices including the content of proline in leaf, activity of CAT and permeability of cell membrare were studied under different growing condition, i.e., low temperature stress, optinum temyerature and high temperture stress. The results indicated there were no difference in thegrowingperformance between normal water and secondary municipal effluent.