青岛鳌山湾海区营养结构分析与营养状况评价

根据2004年6月中旬在鳌山湾海区所取得的底层海水营养盐资料,分析了青岛鳌山湾海区营养盐的平面分布特征;运用绝对限制法则和相对限制法则确定了鳌山湾海区的营养盐限制因子;采用营养状态综合指数法和分类分级富营养化评价模式对鳌山湾海域的营养状况进行了评价。结果表明:鳌山湾营养盐限制因子为磷(P),该海区由缺氮转变为缺磷,营养盐结构发生了根本性变化,且该海域无富营养化现象,水质较好。

Analysis of Nutrient Structure and Assessment of Nutritive Status In the Aoshan Bay, Qingdao

Based on the investigation data collected in waters of the Aoshan Bay in Jun 2004,the distribution features of nutrients and nutrient structure were analysed,and nutritive status was assessed.The limitation factor of the Aoshan Bay was ascertained as phosphorus with the use of the absolute limiting principle and relative limiting principle,and the nutritive status was assessed with the nutritive status index and a new model of nutrient classification.The results showed that the limitation factor of the Aoshan Bay was phosphorus rather than nitrogen,the nutrient structure was changed greatly,and the nutrients' level of this bay is very low,there was not rich-nutrition,and the quality of water was good.