鄱阳湖叶绿素a空间分布及与氮、磷质量浓度关系

摘要

采用2009年7月以及9-12月鄱阳湖监测数据,对鄱阳湖水体中叶绿素a质量浓度的空间分布进行分析,并对叶绿素a质量浓度与总氮、总磷质量浓度相关性进行研究.结果表明；鄱阳湖叶绿素a质量浓度具有一定的空间分布特征,在空间上,湖区南边＞湖区北边,而总氮、总磷在湖区南边的质量浓度＜湖区北边,通过叶绿素a的质量浓度对数与总氮、总磷质量浓度的对数分析得出,2009年叶绿素a质量浓度与总氮、总磷质量浓度的相关关系在9月的湖边及入湖口处存在明显的相关性,7月份的湖上相关性较小,其他月份无明显相关性.%According to the monitoring data of the Poyang Lake in July and September to December in 2009. the spatial distribution of Chlorophyll a (Chl-a) was analyzed, and the correlation of Chl-a with total nitrogen and total phosphorus was studied. The results showed that the Chl-a mass concentration was higher in the south area of Poyang Lake than in the north area, while the mass concentration of TN and TP in the south of the lake was less than in the north. The logarithm of the content of Chl-a. TN and TP showed that Chl-a in September 2009 has a remarkable correlation with TN and TP in the lakefront and the lake inlet, while the data of lake was less relevant in July and no significant correlation in other months.