岳阳南湖水体环境参数相关性及富营养化特征分析

采用2001年岳阳南湖常规监测数据,分析南湖水体中生态环境特征参数的季节变化和相互关系。分析表明,南湖水体各生态参数中,总磷、总氮、氨氮和叶绿素a呈现明显的季节性变化,总磷和叶绿素a变化一致,在夏季形成高峰,冬季最低,磷是南湖水体富营养化的限制因子,而夏季藻类的增殖对氮的消耗是氨氮与总氮浓度降低的原因。

The Analysis on Characteristics and Correlation among the Ecological Environment Parameters of Eutrophication in Yueyang Nanhu Lake

Adopting the conventional monitoring data of the Nanhu lake for 2001 ,the thesis analyzes the seasonal change of the ecological environmental parameters of the lake and their correlation. The analysis demonstrates that the total phosphorus(TP) ,the total nitrogen(TN) ,the ammoniacal nitrogen and the Chlorophyll - a(Chla)of all the ecological parameters have shown the remarkable seasonal changes, the TP and the Chla have the same seasonal changes that reach their higherst point in summer and their lowest point in winter. the thesis shows the TP is the restricting factor in the water of the eutrophic lake, the absorbing of nitrogen by quickly growing alga is the reason why concentrations of the TN and the ammoniacal nitrogen reduce in summer.