富营养化水体中浮萍控藻机理研究进展

Research Progress on Algae Control Mechanism of Duckweed in Eutrophic Water

介绍了浮萍控藻这一生态安全、环境友好、并可持续发展的生物学方法,在水体富营养化治理方面展现出的巨大应用前景。总结了近年来国内外学者对于浮萍控藻作用途径、抑制效果等的相关研究,并从物理、化学和生物3个方面分析了浮萍对藻类的控制机理,浮萍既可通过释放化感物质直接抑制藻类生长,还能通过营养盐和光照的竞争间接限制藻类的生长条件,且它们之间存在一定的相互协同作用。认为浮萍控藻物理机理、化学机理、生物机理之间的相互耦合关系是该技术的研究方向。

The biological method of duckweed controlling algae,which is ecologically safe,environmentally friendly and sustainable,and has great application prospect in the treatment of eutrophication of water were introduced.The relevant research of domestic and foreign scholars on the way of algae control by duckweed and inhibition effect in recent years were summarized,the algae control mechanism of duckweed was analyzed from physical,chemical and biological aspects.The duckweed can not only directly inhibit the growth of algae by releasing allelopathy,but also indirectly limit the growth conditions of algae by the competition of nutrients and light,and there is a certain synergistic effect between them.It is pointed out that the coupling relationship between the physical mechanism,chemical mechanism and biological mechanism of duckweed controlling algae is the research direction of this technology.