2014年胶州湾营养盐结构特征变化及富营养化评价  

Assessment on the Change of Nutrient Structure and Eutrophication in the Jiaozhou Bay in 2014

作　　者：高磊[1] 曹婧[1] 张蒙蒙[1] 刘云龙[1] 

机构地区：[1]国家海洋局北海环境监测中心国家海洋局海洋溢油鉴别与损害评估技术重点实验室,山东青岛266033

出　　处：《海洋技术学报》2016年第4期66-73,共8页Journal of Ocean Technology

基　　金：2015年度北海分局海洋科技项目资助(2015B03);山东省海洋生态环境与防灾减灾重点实验室2015年度开放基金资助项目(201501)

摘　　要：2014年3月、5月、6月、7月、8月、10月在胶州湾开展了6个航次的综合调查,研究了营养盐的时空变化特征和结构变化特征,并评价了海湾的富营养化状况。营养盐的浓度和结构变化特征表明,NH_4-N和NO_3-N是胶州湾海域DIN的主要存在形态。营养盐限制存在硅限制逐步转变为磷限制的趋势。富营养化研究表明,胶州湾整体处于磷限制中度营养-磷限制潜在性营养状态。The temporal and spatial variation characteristics and structural changes of nutrients are studied through 6 voyages of comprehensive survey in March, May, June, July, August and October in 2014 in the Jiaozhou Bay. The eutrophication status of the Jiaozhou Bay is also assessed. The concentration and structural change of nutrients indicate that NH4-N and NO3-N are the main form of inorganic nitrogen in the Jiaozhou Bay,and PO4-P and SiO3-Si are both absolute and relative limitations, with PO4-P limitation being more serious.There is a trend of silicon limitation to phosphorus limitation. The results of eutrophication assessment show that the whole Bay is in middle-phosphorus-limiting to phosphorus-limiting potential eutrophication.

关 键 词：胶州湾 营养盐 结构特征 富营养化 

分 类 号：P734.2[天文地球—海洋化学]