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根据 1 998年 1 0月和 1 999年 1 ,4,8月在广西北海湾的调查资料 ,首次详细讨论了该湾总氮 (TN)、总溶解氮 (DTN)、颗粒有机氮 (PON)、溶解有机氮 (DON)等各种形态氮的分布变化规律及其与环境因素的关系。结果表明 :该湾各形态氮的含量变化随季节而异 ,表现为春夏季高而秋冬季低 ;区域变化以南流江口海域含量较高 ,北海、合浦沿岸海域次之 ,其它海域较低。经相关分析 ,得出影响该湾各形态氮含量变化的主要环境因子是盐度 (S)和化学需氧量(COD) ,其次是悬浮物 (SS)和叶绿素a (Chl-a) ,pH和溶解氧 (DO)对其影响较小
According to the survey data of January, 1998, January, April, and August in Beihai Bay, Guangxi Province, China, the total nitrogen, total dissolved nitrogen (DTN) and particulate organic nitrogen (PON) , Dissolved organic nitrogen (DON) and other forms of nitrogen distribution and its relationship with environmental factors. The results show that the content of nitrogen in each bay varies with the seasons, which is high in spring and summer and low in autumn and winter. The regional variation is high in the waters of Nanliujiang Estuary, followed by the Beihai and Hepu coasts, and lower in other waters. Correlation analysis showed that the main environmental factors influencing the nitrogen content of various forms in the bay were salinity (S) and chemical oxygen demand (COD), followed by suspended matter (SS) and chlorophyll a (Chl-a) And dissolved oxygen (DO) have little effect on it