两种漂浮植物的生长特性及其水质净化作用.PDFVIP

See discussions, stats, and author profiles for this publication at: /publication/307171405 Growth characteristics and water purification of two free-floating macrophytes Article · ugust 2016 CIT TIONS RE DS 0 49 8 authors, including: Hongjie Qin Shaohua Yan Jiangsu cademy of gricultural Sci… Jiangsu cademy of gricultural Sci… 15 PUBLIC TIONS 84 CIT TIONS 28 PUBLIC TIONS 185 CIT TIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: cyanobacterial bloom control View project ll content following this page was uploaded by Hongjie Qin on 29 ugust 2016. The user has requested enhancement of the downloaded file. 中国环境科学 2016,36(8) ：2470~2479 China Environmental Science 两种漂浮植物的生长特性及其水质净化作用 秦红杰,张志勇,刘海琴,刘旻慧,闻学政,王 岩,张迎颖,严少华* (江苏省农业科学研究院农业资源与环境研 究所,江苏 南京 210014) 摘要：采用自主研发的漂浮水槽,对两种常用于水体净化与修复的漂浮植物(凤眼莲和水浮莲)在水质净化效果和生长特征等进行了比较研 究.结果表明,水浮莲对水体氮磷浓度有更高的要求,对水体中浮游藻类和叶绿素 a 去除率分别高达 94.38%和 95.06%,优于凤眼莲;凤眼莲对 2 水体 TN 的去除率(82.08%) 以及其叶片净光合速率(20.28~27.90µmol CO /(m ·s))和叶绿素 a 含量(1.05~1.08mg/g 鲜重)均显著高于水浮莲(分 2 2 别为 71.82%、8.64~16.50µmol CO /(m ·s)和 0.25~0.31mg/g 鲜重) (P 0.05).与凤眼莲共存情况下,水浮莲有更强的扩繁能力,但后者在实际 2 工程应用中更具逃逸风险.为使两种漂浮植物的优势得到充分发挥,我们提出了基于这两种水生植物水体净化的“三明治”模式,为今后选用 水生植物进行水体净化与修复的工程实践提供借鉴. 关键词：漂浮植物；凤眼莲；水浮莲；水体修复 中图分类号：X52 文献标识码：A 文章编号：1000-6923(2016)08-2470-10 Growth characteristics and water puri