中水灌溉对草坪绿地土壤理化性状及肥力的影响  

Effects of greenbelt irrigation with redaimed water on soil physicochemical properties and fertility

作　　者：郑汐[1] 王齐 孙吉雄[1] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]云南林业职业技术学院,昆明650224

出　　处：《草原与草坪》2011年第2期61-64,共4页Grassland and Turf

基　　金：深圳市中水灌溉绿地水质控制指标及安全性评价

摘　　要：采用大田定位调查的方法,对浇灌中水(灌溉清水为对照)经过7年的草坪绿地理化性状及肥力进行测定分析,结果表明,在长期中水浇灌下,与清水对照相比,中水灌溉使绿地土壤pH降低,孔隙度增大;全氮、全磷含量均有高于清水对照的趋势,且与清水对照之间差异不显著(P>0.05);碱解氮、有效磷和速效钾含量均高于对照,且差异显著(P<0.05)。The soil physicochemical properties and fertility of greenbelt irrigated with reclaimed water for 7 years were studied.The result indicated that the pH value decreased and porosity increased.The contents of total nitrogen and total phosphorus were higher than control,but there were no significant difference between reclaimed water irrigation and tap water irrigation.The contents of available nitrogen,available phosphorus and available potassium were also higher than control and the difference was significant.

关 键 词：中水 灌溉 土壤理化性状 肥力 

分 类 号：S274[农业科学—农业水土工程] S152.2[农业科学—农业工程]