湖泊科学Issue(1)：24-30,7.
面向流量管理的水动力对淡水藻类影响的概念机制
Conceptual mechanism of hydrodynamic impacts on freshwater algae for flow manage-ment
摘要
Abstract
Numerous studies have shown that low flow condition is the main trigger of algae bloom and flow management is widely acknowledged as a strategy for inhibiting bloom development based on critical flow velocity and replacement .Due to the underlying intervention mechanism is still not clear ,long-term practices of flow management are not very effective .Based on the research pro-gress and a series of studies through long-term observation, enclosure and laboratory experiments, we present the conceptual mech-anism that there existed three different mechanisms of hydrodynamic impacts on freshwater algae:(1) low turbulent flow results in the thickness of cell diffuse layer thinner in favor of nutrients transport from water phase to algae cell ,which is preferred by algae growth; (2) medium turbulent flow is harmful to nutrients absorption and light availability of algae and inhibits the algae growth;(3) high shear force can damage the algae cell walls, which are individually determinant in different levels of flow intensity.Ac-cording to theories, critical flow velocity should be applied from two different aspects of water replacement and cytology in flow management.The results will be of great scientific significance in order to control algle bloom and remain the water quality in flow management.关键词
水动力/水华藻类/临界流速/流量管理/概念机制Key words
Hydrodynamics/blooming algae/critical flow velocity/flow management/conceptual mechanism引用本文复制引用
陈瑞弘,李飞鹏,张海平,陈玲,赵建夫,黄子寒..面向流量管理的水动力对淡水藻类影响的概念机制[J].湖泊科学,2015,(1):24-30,7.基金项目
国家自然科学基金项目（51379146，51409190）资助 （）
