利用川蔓藻抑制景观水体中小球藻生长的研究  

Allelopathic Effects of Ruppia Maritime on Growth of Chlorella Sp. in Scenic Water Body

作　　者：张楠[1] 季民[1] 王卫红[1] 王苗苗[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072

出　　处：《中国给水排水》2007年第13期24-27,共4页China Water & Wastewater

基　　金：国家高技术研究发展计划(863)项目(2003AA601030)

摘　　要：采用共培养、培植水培养、浸提液培养3种方法,研究了沉水植物——川蔓藻对天津滨海新区某景观水体(以高盐度的再生水为水源)中小球藻的克藻效应。结果表明,川蔓藻对小球藻的生长具有明显的抑制作用,共培养1 d后藻密度及叶绿素a的含量均大幅下降;当培植水的体积分数为60%时其克藻效果最佳;采用浸提液培养可使藻细胞的数量明显降低,同时伴有丙二醛的积累和胞内物质的溶出。可见,利用川蔓藻控制以高盐度再生水为补水的景观水体富营养化是可行的。A series of experiments including coexistence culture, solution culture and aqueous leachate culture were carried out to investigate the allelopathic effect of submerged macrophyte Ruppia maritime on the growth of Chlorella sp. which is the main reason resulting in eutrophication of a scenic water body in the New Coastal Area of Tianjin, China. The results show that these three methods have allelopathic effects on the growth of Chlorella sp. The population of Chlorella sp. and the content of chlorophyll a are decreased remarkably after only one day in the experiment of coexistence culture. When the volume fraction of culture solution is 60%, the best allelopathic effect on algal growth can be obtained. It is found that the aqueous leachate can reduce the population of the algae with maleic dialdehyde （MDA） accumulation and dissolving endocellular matters evolution. Ruppia maritime is an available species for control of eutrophication of scenic water body with highly salty reclaimed water as make-up water.

关 键 词：川蔓藻 小球藻 克藻效应 再生水 

分 类 号：X52[环境科学与工程—环境工程]