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通过2010年四个季节代表性月份对福建省罗源湾海域海水中生源要素的分布状况进行了4个航次调查,并对海域生源要素结构和对浮游植物的限制情况进行了讨论和分析。结果表明:罗源湾营养盐平面分布均呈自湾顶向外口递减的趋势。N、P、Si三种营养盐的最低水平均出现在夏季,但PO4-P的最高水平出现在冬季,SiO3-Si和DIN的最高水平均出现在春季。罗源湾春、秋、冬三个季节均不存在生源要素的限制情况,但春季PO4-P的消耗速度明显快于其它营养盐,以至于其在夏季于湾中部成为限制性因子。
By means of four typical representative months of 2010, four voyages were surveyed on the distribution of biogenic elements in the seawater of Luoyuan Bay in Fujian Province. The structure of biogenic elements in the sea and the restrictions on phytoplankton were discussed and analyzed. The results showed that the distribution of nutrients in Luoyuan Bay showed a decreasing trend from the top of the bay to the outside of the bay. The lowest levels of N, P and Si nutrients appeared in summer, but the highest levels of PO4-P appeared in winter, and the highest levels of SiO3-Si and DIN appeared in spring. In the three seasons of spring, autumn and winter in Luoyuan Bay, there are no restrictions on the sources of raw materials. However, the consumption of PO4-P in spring was significantly faster than other nutrients, making it a limiting factor in the central part of the Gulf in summer.