2013年胶州湾营养盐结构与限制研究

摘要

文章根据2013年3—10月期间在胶州湾开展的7个航次的综合调查结果，研究营养盐的时空变化和限制变化。胶州湾海域无机氮的主要存在形态为铵盐和硝酸盐；近年来营养盐由原先的硅限制逐步转变为磷限制，磷成为胶州湾的主要限制因子。%Temporal and spatial variation characteristics and structural changes of nutrients were studied in March,May,June,July,August,September and October 2013 in Jiaozhou Bay.It was found that:NH4-N and NO3-N were the main forms of inorganic nitrogen.PO4-P and SiO3-Si were both absolute and relative limitations,in which the PO4-P limitation was more serious.