采用生态浮床技术对污染水体净化效果进行了研究。结果表明：黄花鸢尾（ Iris pseudoacorus）对水体的氮、磷均有良好的去除效果，试验10，20，30，60 d 时水体总氮降低率平均为59?08％、86?49％、94?65％、98?79％。试验10，20，30，60 d时水体总磷降低率平均为61?89％、84?14％、96?69％、98?61％。总氮去除量、总磷去除量与植物生长量和生物量符合线性规律；植物吸收养分与植物生长量和生物量符合线性规律。“,”Effects of Iris pseudoacorus ecological floating?beds on removing polluted water were stud?ied. The experiment lasted for 60 days. The results indicated that removal rates of TN by Iris pseud?oacorus were 59?08%, 86?49%, 94?65% and 98?79%, respectively on 10 d, 20 d, 30 d and 60 d. The removal rates of TP were 61?89%, 84?14%, 96?69%and 98?61%, respectively on 10 d, 20 d, 30 d and 60 d. TN and TP removals are linear with plant growth quantity and biomass. Plant nu?trient uptake is linear with plant growth quantity and biomass.