大鹏湾南澳水域氮磷及溶解氧的分析研究

NITROGEN, PHOSPHORUS AND DISSOLVED OXYGEN IN NAN'AO WATERS OF DAPENG BAY

通过对大鹏湾南澳水域的溶解氧、氮、磷、化学耗氧量、盐度及浮游植物等环境因子的调查,对该湾水域溶解氧的含量分布变化以及该水域的富营养状况进行了分析.着重讨论了湾内PO_4-P、NO_3-N、NO_2-N、NH_4-N的空间分布及相应于季节、盐度的变化规律,结果表明:控制其变化的因素主要为陆源污水、底质扩散和浮游植物繁殖三个方面.

The environmental factors, DO, COD, nitrogen, phosphorus, salinity, phytoplank-ton in the Nan'ao waters of Dapeng Bay were surveyed and, the distributional variation in DO content and eutrophic status of the waters were analyzed. In particular are discussed the spatial distribution of PO4-P,NO3-N,NO2-N, and NH4-N in the bay and their variation relative to seasons and salinity. The results show that the major factors controlling the variation are land-origin waste discharge, bottom matters diffusion and phytoplankton proliferation.