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中文摘要：
通过调查鄱阳湖2010年水体中硝酸盐氮、氨氮及总氮浓度,分析不同形态氮的时空分布特征,并采用相关性分析法分析了2010年硝酸盐氮、氨氮及总氮三者的关系.结果表明：在时间分布上,2010年鄱阳湖水体总氮含量年平均值是1.50 mg/L,硝酸盐氮含量平均值为0.84 mg/L,氨氮含量年平均值是0.37 mg/L,丰水期不同形态氮的含量均明显低于枯水期;在空间分布上,枯水期硝酸盐氮、氨氮主航道中游含量较高,上、下游稍低.用相关性分析法分析知,2010年硝酸盐氮与总氮之间有显著的相关性,关联度分别达到0.99和0.95.减少硝酸盐氮与氨氮的输入有利于对富营养化的控制.
英文摘要：
According to analyzing the content of nitrogen（NO3）,ammonia nitrogen（NH4＋） and total nitrogen（TN） in 2010 of Poyang Lake,the temporal and spatial distribution characteristics of three species nitrogen were discussed,based on the correlation analysis,the relationship among NO3,NH4＋ and TN in 2010 was analyzed.The results showed that the average content of TN was 1.50 mg/L,the value of NO3 was 0.84 mg/L,the average content of NH4＋ was 0.37 mg/L,the content of three species in the wet season was lower than in the dry season for temporal distribution;for spatial distribution characteristic,the NO3 and NH4＋ was higher in the main channel,but lower than it in the upstream and downstream for spatial distribution;based on the correlation analysis,the result showed that the correlation between the NO3 and TN was significant with the value 0.99、0.95,the reduction of NO3 and NH4＋ was good for the control of eutrophication.
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