摘要
为了探究水生植物对富营养化水体的修复治理效果,以水葫芦、大薸、狐尾藻、浮萍4 种水生植物为研究对象,开展室外静态模拟实验,定期测定富营养化水体中总氮(TN)、总磷(TP)含量的变化.结果表明,水葫芦、大薸、狐尾藻、浮萍对富营养化水体中TN的最终去除率分别是 74.2%、72.0%、87.1%、56.9%,对TP的最终去除率分别是92%、95%、84.7%、55.3%.比较可知,水葫芦、大薸、狐尾藻对 TN、TP 的去除效果均较强,均可用于富营养化水体修复治理工作中的优选植物物种.其中,狐尾藻对氮的吸收能力最强,而大薸对磷的吸收能力最强.
Abstract
In order to explore the remediation effect of four aquatic plants on the eutrophic water,Eichhornia crassipes,Pistia stratiotes,Myriophyllum verticillatum,and Spirodela polyrrhiza,were used as research objects to conduct outdoor static simulation experiments.Total nitrogen(TN)and total phosphorus(TP)were detected regularly during the culture period of aquaculture in the eutrophic water.The results showed that the final removal rates of total nitrogen by E.crassipes,P.stratiotes,M.verticillatum,and S.polyrrhiza were 74.2%,72.0%,87.1%and 56.9%,and the final removal rate of total phosphorus were 92%,95%,84.7%,55.3%,respectively.It can be seen that E.crassipes,P.stratiotes,M.verticillatum had strong removal effects on TN and TP,and could be used as the preferred plant species in the remediation of eutrophic water.Among them,M.verticillatum had the highest absorption of TN and P.stratiotes had the highest absorption of TP.
维普
万方数据