摘要
模拟水体富营养化条件下,随机选取本土植物东方藨草(Scirpus orientalis)、水葱(Scirpus Validus)、香蒲(Typha orientalis)、菰(Zizania latifolia)、菖蒲(Acorus calamus)、欧菱(Trapa natans)和荇菜(Nymphoides peltata)中 2 种挺水植物+1种浮叶植物组成的群落对水体中氮磷污染物的去除作用进行比较研究.研究结果表明,东方藨草+香蒲+荇菜对水体中总氮、铵态氮和硝态氮的去除效果最佳,且其茎叶部和根部的氮含量增加最高;而菖蒲+水葱+欧菱对水体中的总磷去除效果最佳,且其茎叶部的磷含量增加最高.因此,东方藨草+香蒲+荇菜、菖蒲+水葱+欧菱可作为污染水体净化的备选组合,为植物组合对水体污染修复提供科学依据.
Abstract
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.
维普
万方数据