新立城水库藻类水华环境因子分析及其预警监测

调查研究表明长春市新立城水库发生小范围藻类水华期间浮游植物藻类群落结构变化不明显，种群丰度增加。对监测数据进行了分析并与该地区非水华期间的监测数据相比较；同时对水质进行了环境因子相关性及对藻类水华的影响分析。结果显示溶解氧和温度是影响水库叶绿素a值变化的主要环境因子，且可以作为北方湖泊藻类水华预警的主要监测指标。

Environmental Factor Analysis during Algal Bloom in Xinlicheng Reservoir and Pre-alarming Monitoring

Small area of algal bloom occurred in Xinlicheng reservoir. It was found that there is no significant change in the species involved after investigating the phytoplankton community, however, the total biomass increase greatly. The monitoring data of the water quality are analyzed and compared to the data in the other period of the year as well as the correlation analysis of impacts of the environmental factors on cyanobacteria bloom. The results reveal that the main environmental factors that control the changes of chlorophyll a are dissolved oxygen and temperature which can be regarded as the main monitoring indexes for the pre-alarming monitoring of water bloom.