湖泊科学2011，Vol.23Issue(1)：67-72,6.
淀山湖蓝藻水华高发期叶绿素a动态及相关环境因子分析
Dynamics of chlorophyll-a and analysis of environmental factors in Lake Dianshan during summer and autumn
摘要
Abstract
According to the monitoring data at 13 sampling sites of Lake Dianshan from May to September 2008, the relationship between chlorophyll-a concentrations and environmental factors( water temperature, pH, DO, TN and TP) was investigated. The results indicated that there was an obvious temporal and spatial variation of chlorophyll-a. The first cyanobacterial bloom in 2008 occurred on July 23 at Qiandungang site and Youyongchang site. The most severe bloom covered a total area of 17kmn2 on August 27. Significantly positive logarithmic correlation was found between chlorophyll-a and total phosphorus, but not for ammonia nitrogen, nitrate nitrogen and total nitrogen. Phosphorus might be the main limited factor in Lake Dianshan. Significantly positive conelations were found between chlorophyll-a concentration and water temperature, pH, dissolved oxygen, and markedly negative correlation between chlorophyll-a and transparency.关键词
淀山湖/叶绿素a/蓝藻水华/环境因子/相关分析Key words
Lake Dianshan/ chlorophyll-a/ cyanobacterial bloom/ environmental factor/ correlation analysis引用本文复制引用
吴阿娜,朱梦杰,汤琳,朱刚,汪琴,张锦平..淀山湖蓝藻水华高发期叶绿素a动态及相关环境因子分析[J].湖泊科学,2011,23(1):67-72,6.基金项目
上海市科委项目(08DZ1203007)资助. （08DZ1203007）
