Compare the Water Purification Ability of Different Plant Combinations
With the simulated water of eutrophic level,the native plants including Scirpus orientalis,ScirpusValidu,Typha orientalis,Zizania latifolia,Acorus calamus,Trapa natans,Nymphoides peltate were selected.The mixed communities consisted of both the 2 emergent and 1 floating-leaved plant to investigate the removal of nitrogen and phosphorus to water pollution of eutrophication.The results showed that:S.orientalis,T.orientalis and N.peltate in the mixed communitieshad the best removal efficiency oftotal nitrogen,ammonia nitrogen and nitrate nitrogen,they had the highest increase of the nitrogen content in the stems,leaves,and roots.The A.calamus,S.Validus and T.natans in the mixed communitieshad the best removal efficiency oftotal phosphorus,they had the highest increase of the phosphorus content in the stems and leaves.They can be used to ecological remediation plants,and provide scientific basis for plant community in water pollution remediation.