····················································································1 1 . 前言·················································································,··…3 2.文献回.顾···········································································4 2.1污水浇灌对土壤的影响·······················:’’················4 2.2污水浇灌对作物的影响································\..········5 2.2.1污水中有毒有害物质的影响····································:··…5 2.2.2污水浇灌对作物产量和品质的影响·································6 2.3污水灌溉的健康安全性···················································6 2.4试验的生物生理学基础及测试指标的选择依据·····················6 2.4.1污水浇灌草坪的生物生理学基础····································6 2.4.2测试指标的选择依据···················································7 3.材料与方法·······································.·································11 3.1供试草坪草种及品种···················································11 3 . 2试验地概况·······························································n 3.3试验地播种及播后管理················································12 3.3.1播前土壤处理·························································12 3 . 3 . 2草坪草的播种·························································12 3 . 3.3播种后草坪的日常管理·············································12 3.4测试时期与方法············································.···.........13 3.4.1测试时期·······························································13 3.4.2测试方法·······························································13 4.测试结果与分析·······························································14 4.1草坪草地下生物量······················································14 4.2草坪草脯氨酸的积累量························、·······················16 4 . 3细胞膜透性····················································,··········21 4.4草坪草过氧化氢酶活性··············,·····,...···················26 5.结果与讨论········································································30 5.1结论········································································30 5.2讨论········································································31