引用本文:王亚超,徐恒省,王国祥,李继影,刘孟宇,孙艳,景明,.氮、磷等环境因子对太湖微囊藻与水华鱼腥藻生长的影响[J].环境监控与预警,2013,5(1):7-10
.The Impact of Nitrogen、Phosphorus and other Environmental Factors on Microcystis and Anabaena Growth in Lake Taihu[J].Environmental Monitoring and Forewarning,2013,5(1):7-10
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氮、磷等环境因子对太湖微囊藻与水华鱼腥藻生长的影响
王亚超,徐恒省,王国祥,李继影,刘孟宇,孙艳,景明,1,2
1.苏州市环境监测中心站,江苏 苏州 215400;2.南京师范大学,江苏 南京 210046
摘要:
太湖是苏州地区主要水源。为探索太湖主要水华藻类(微囊藻与水华鱼腥藻)在多种环境因子作用下的生长变化机理,本研究在实验室内对部分水华藻类(微囊藻、鱼腥藻)分离培养,研究氮、磷、温度等环境因子对水华藻类生长增殖的影响。研究表明,高水温(30℃)是微囊藻的最适生长温度;随着氮磷浓度的提高,微囊藻的生长速率加快;低磷是鱼腥藻生长的限制因子。同时,在野外测定各项指标,发现藻类密度较低时,藻类密度与总氮、总磷呈正相关。
关键词:  太湖  微囊藻  鱼腥藻  蓝藻水华
DOI:
分类号:
基金项目:江苏省环境监测科研基金项目(0906)
The Impact of Nitrogen、Phosphorus and other Environmental Factors on Microcystis and Anabaena Growth in Lake Taihu
Abstract:
Taihu Lake in Suzhou is the main source of water. In order to explore the mechanism of Microcystis and Anabaena growth under a variety of environmental factors, we isolated and cultured Microcystis and Anabaena in lab. We studied the impact of nitrogen, phosphate, temperature and other environmental factors on the growth of Microcystis and Anabaena. Research shows that, high water temperature(30℃) is the optimum growth temperature for Microcystis; With the increase of concentration of nitrogen and phosphorus, Microcystis growth rate improves; Low phosphorus concentration limits the growth of Anabaena. At the same time, we found that, in the wild, when algae density is low, the algal density is positively correlated with the total nitrogen and total phosphorus.
Key words:  Taihu Lake  Microcystis  Anabaena  Cyanobacteria Bloom