不同植物组合的生态沟渠对地表N、P元素污染吸附效果的影响  

Effects of ecological ditches with different plant combinations on surface nitrogen and phosphorus pollution adsorption

作　　者：梁坤 杜治舜 孙学斌 王帅 LIANG Kun;DU Zhi-shun;SUN Xue-bin;WANG Shuai(Liaoning Shenyang Ecological Environment Monitoring Center,Shenyang 110000,China)

机构地区：[1]辽宁省沈阳生态环境监测中心,辽宁沈阳110000

出　　处：《环境生态学》2024年第7期82-84,共3页Environmental Ecology

基　　金：农田退水对辽河流域沈阳段地表水污染影响研究及生态沟渠对水质改善可行性分析资助。

摘　　要：在沈阳市辽中区珍珠湖附近选取一条生态沟渠为研究对象,配置不同植物组合,建设生态沟渠。试验设计了稗草+芦苇、马唐+三棱草、野慈姑+眼子菜3种植物组合。结果表明,3种植物组合对氮、磷元素均起到了吸附作用,总氮去除率分别为稗草+芦苇(87.68%)>马唐+三棱草(83.42%)>野慈姑+眼子菜(79.37%);总磷去除率分别为稗草+芦苇(85.24%)>马唐+三棱草(79.25%)>野慈姑+眼子菜(77.69%)。An ecological ditch was selected as the research object near the Pearl Lake in Liaozhong District,Shenyang City,and different plant combinations were configured to construct an ecological ditch.Three plant combinations were designed for barnyardgrass+reed,crabgrass+cloverleaf,wild scorpion+waterweed,and the results showed that the three plant combinations had an adsorption effect on nitrogen and phosphorus,and the total nitrogen removal rate was different.Barnyardgrass+Phragmites australis(87.68%)>Crabgrass+Triangle grass(83.42%)>Ye Cigu+Pondweed(79.37%);the total phosphorus removal rate is Barnyardgrass+Phragmites australis(85.24%)>Crabgrass+Triangulum(79.25%)>Yescigu+pumpkins(77.69%).

关 键 词：生态沟渠 N、P元素污染 植物组合 

分 类 号：X173[环境科学与工程—环境科学]