大亚湾水域营养盐的分布变化

THE DISTRIBUTION VARIATION OF THE NUTRITION SALTS IN THE WATERS OF DAYA BAY

本文通过对大亚湾水域溶解氧、氮、磷、化学耗氧量、盐度、pH等环境因子的调查，对该水域溶解氧的含量分布和季节变化进行了分析，同时，对湾内NO3－N、NO2－N、NH4－N及PO4－P的时空分布以及季节变化规律进行了讨论，并以氧的饱和度、PH、化学耗氧量、无机氮、无机磷等单项指标和综合指标研究了该水域的富营养状况。

In this paper the environmental factors, such as dissolved oxygen(DO), chem ical oxygen demand (COD), nitrogen, phosphorus, salinity, PH in the waters of Daya Bay are surveyed and the distrbutional and scason al variation in dissolved oxygen content of the waters were analyzed. Also discussed are the spatial distri bution of NO-N, NO-N, NH-N and PO-P in the bay and their seasonal variations,and the eutrophic status of the water is studied by using the individual index and synthetical index of oxygen saturation, PH, chemical oxygen demand, inorganic nitrogen, inorganic phosphorus and so on.