附着藻类对浮游藻类生长抑制的试验研究  

Experimental Study on Growth Inhibition of Attached Algae to Phytoplankton

作　　者：张秋节[1] 杨敏[1] 唐仙[1] 林丽[1] 徐婷婷[1] 

机构地区：[1]西南交通大学环境科学与工程学院,西川成都610031

出　　处：《污染防治技术》2009年第2期14-17,33,共5页Pollution Control Technology

摘　　要：通过室内模拟实验,研究了在实验室条件下,以控制一定的温度、照度、pH值等条件,并设置氮磷比在10∶1到25∶1的范围内变化时,观测浮游藻类单独培养和浮游附着藻类混合培养时的生长竞争情况,为富营养化水体的水华控制提供一定的理论依据。另外,还探讨了以葡萄糖为外加碳源,对浮游藻类和附着藻类生长状况的影响。结果表明,在氮磷比为20∶1时,浮游藻类单独培养和混合培养下的浓度差最高,其值为159×105cells/L。随着氮浓度的增高,当温度越高时,附着藻类对浮游藻类的竞争优势越明显。同时浮游藻类比附着藻类更能适应较高的COD浓度。By controlling a certain temperature, illumination, pH, and setting N/P ratio between 10：1 and 25：1 to analyze the growth of competition between phytoplankton and attached algae in the laboratory, this paper provided a certain theory basis for the algae bloom control of eutro - phication in water. It also discussed the growth influence of phytoplankton and attached algae with glucose as additional carbon source. The results indicated that when N/P ratio was 20： 1, the phytoplankton concentration difference was the highest and its value was 159× 10^5cells/L. The higher the temperature and concentration of nitrogen, the more obvious the competitive advantage of attached algae was. The phytoplankton adapted the higher concentration of COD better than attached algae.

关 键 词：浮游藻类 附着藻类 生长竞争 氮磷比 温度 碳源 

分 类 号：X172[环境科学与工程—环境科学]