乳山湾东流区沉积物中氮形态的分布特征  

Distribution of nitrogen in sediments of Eastern Rushan Bay

作　　者：王迪迪[1,2] 孙耀[2] 石晓勇[1] 刘霞[1,2] 徐林梅[1,2] 孟伟[3] 姜守轩[3] 宋健中[3] 

机构地区：[1]中国海洋大学化学化工学院,山东青岛266003 [2]中国水产科学院黄海水产研究所,山东青岛266071 [3]乳山市海洋与渔业局,山东威海264500

出　　处：《海洋环境科学》2009年第6期639-642,共4页Marine Environmental Science

基　　金：国家自然科学基金项目(30271021);中国水产科学研究院科研基金项目(2003-1-3)

摘　　要：对2003年8月在乳山湾东流区采集的沉积物样品中不同形态N的平面和垂直分布特征进行分析,探讨了这些N的形态分布与贝类养殖之间的关系。结果表明:乳山湾贝类高密度养殖区各形态N含量一般大于低密度养殖区,各形态N在柱样中20 cm以下含量稳定。养殖区TN的平均含量高于非养殖区,但小于其它海区;OSF-N是EF-N的优势形态,其次是IEF-N、IMOF-N和CF-N。非转化态氮约占TN的70%左右。The sediment samples were collected from Eastern Rushan Bay in Aug. 2003. The horizontal and vertical distributions of different nitrogen forms were investigated. The relationship between the distribution of different forms and bivalve culture was discussed. The results showed that the content in the high density cultivating areas was usually higher than low density cultivating areas, and their content was steady below twenty centimeters. The average content of TN in the culture areas was higher than nature areas, but their contents were lower than other areas. OSF-N was the prevalent form of the exchangeable nitrogen. The next was IEF-N, CFN and IMOF-N. Non-exchangeable nitrogen is about 20% of TN.

关 键 词：氮形态 沉积物 乳山湾 

分 类 号：P736.41[天文地球—海洋地质]