水源中水蚤类浮游动物的孳生与生态控制研究

Excess propagation and ecological control of water flea of zooplankton in raw water

以桡足类剑水蚤为代表的浮游动物在水厂乃至入户水中的出现是给水处理中继藻类之后又出现的一个新问题 .首先从生态学的角度进行分类并对其生理特性与环境因子之间的关系进行了论述 ,然后从水体富营养化的问题入手以生态群落中的食物链关系为依据 ,通过分析捕食关系与生存竞争压力对剑水蚤生存的影响探讨了其大量孳生的原因 .在此基础上提出了一个全新的治理方案 :从生态学的角度出发 ,利用食物链关系进行水体综合治理 ,通过运用生物操纵技术来调整水体的营养结构和代谢水平 。

Starting with the eutrophication of water body and according to the food chain relation in biocoenosis,extensive investigations have been made into the reason of its excess propagation by analyzing the effect of prey relation and the survival competition pressure on its survival.The use of the food chain relation is suggested to harness it from ecology viewpoint by handling the biomanipulation technique to adjust nutrition configuration and metabolism level as to restore ecological balance and control daphnia excess propagation.