The adaptability and purification of eutrophic water quality of ten kinds of hydroponic flowers,including Epipremnum aureum,Calathea makoyana,Anthurium andraeanum Dakota,Spathiphyllum kochii,A nthurium andraeanum Pink,Philodenron selloum,Chamaedorea elegans,Podocarpus nagi,Dieffenbachia picta,Syngonium podophyllum were investigated in indoor hydrostatic condition.Results showed that:P.selloum,E.aureum,D.picta,S.podophyllum,S.kochii had strong adaptability to river sewage and the net increase of biomass was large;On the effect of purifying the water,the 10 kinds of plants showed good purification effect on the removal of COD.S.kochii,E.aureum,S.dophyllum,P.selloum had strong ability respectively to remove total nitrogen (TN),and E.aureum,S.kochii,P.selloum,S.podophyllum had strong ability respectively to remove ammonia nitrogen (NH4+-N);The plants with the best purifying effect of total phosphorus (TP) were E.aureum,P.selloum,S.kochii,S.podophyllum.All indices after the test could meet the standard of V class or higher for Land Surface Water Quality Standard (GB 3838-2002).Based on comprehensive comparative analysis of various factors,four plants S.kochii,E.aureum,S.podophyllum and P.selloum could be used as the preferred landscape plant hydroponics for the purification of the city river.%选取观赏性强、可用于水培的绿萝、孔雀竹芋、红掌、白掌、粉掌、春羽、袖珍椰子、竹柏、花叶万年青、合果芋10种花卉为研究对象,在室内静水条件下对其净化富营养化水质能力及其生长适应性进行筛选研究.结果表明:春羽、绿萝、花叶万年青、合果芋、白掌5种花卉对河道污水适应性相对较强,净增生物量大;从净化水体效果来看,10种花卉对试验水体COD的去除均表现出良好净化效果,其中对试验水体总氮(TN)去除能力比较强的花卉依次为白掌、绿萝、合果芋和春羽,对水体氨氮(NH4+-N)净化效果较好的花卉依次为绿萝、白掌、春羽和合果芋,对水体总磷(TP)净化效果最佳的花卉为绿萝、春羽、白掌和合果芋.试验结束后原水各项指标由《地表水环境质量标准》(GB 3838-2002)劣V类标准提升达到V类标准或更高.综合各类因素比较分析,白掌、绿萝、合果芋和春羽4种花卉从其适应性和净化效果来看,可以作为优选的用于净化城市河道的水培景观花卉.
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