In order to provide evidence for further study of the role of wetland plant in wastewater treatment,outdoor pot experiments were conducted to investigate two hydrophytes growth characteristics and accumulating ability of nitrogen and phosphorus in eutrophic water.Both of the two species of plants could grow normally in eutrophic water during the experiment period,after 5 months' growth,the total biomass of typha orientalis presl and pontederia cordata was 6.65 kg/m2 and 10.83 kg/m2 respectively,about 6 and ...