杞麓湖富营养化控制因子研究

Study on the Controlling Factors of Eutrophic State of Qiluhu Lake

对杞麓湖水质及富营养化状态进行研究,以最能表现水体富营养化状态进程的叶绿素a为基准因子,分析了叶绿素a与其他环境因子相关性关系.结果显示:湖泊叶绿素a浓度与pH、TN、TP呈极显著正相关关系,TP为与叶绿素a关系最为密切的环境因子,而磷为杞麓湖浮游植物生长潜在的限制性因子,总氮则为杞麓湖富营养状态贡献最大的环境因子.

Based on the monitoring of water quality and the eutrophic state of Qiluhu lake,the research analyzed the relationship between chlorophyll-a and other environmental factors with chlorophyll-a as the reference factor,which can best reflect the state of eutrophication.The result shows that chlorophyll-a concentration has a significantly positive correlation with the value of pH,TN and TP,and has the closest relation with TP;the phosphorus is the nutrient element limiting the growth of phytoplankton and the total nitrogen contribute largely to the eutrophic state of Qiluhu lake in winter.