| LU Xiaoxia,SONG Jinming,LI Xuegang,YUAN Huamao,ZHAN Tianrong,LI Ning,GAO Xuelu. 2004. Characteristics of nitrogen forms in the southern Huanghai Sea surface sediments. Acta Oceanologica Sinica, (3):473－482 |
| Characteristics of nitrogen forms in the southern Huanghai Sea surface sediments |
| Characteristics of nitrogen forms in the southern Huanghai Sea surface sediments |
| Received:October 11, 2003 Revised:January 20, 2004 |
| DOI： |
| Key words:nitrogen form characteristics controlling factors southern Huanghai Sea surface sediment |
| 中文关键词: nitrogen form characteristics controlling factors southern Huanghai Sea surface sediment |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LU Xiaoxia | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100039, China
Marine Geology College, Ocean University of China, Qingdao 266003, China | jmsong@ms.qdio.ac.cn | | SONG Jinming | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China | | | LI Xuegang | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100039, China | | | YUAN Huamao | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100039, China | | | ZHAN Tianrong | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100039, China | | | LI Ning | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100039, China | | | GAO Xuelu | Institute of Ocean ology, Chinese Academy of Sciences, Qingdao 266071, China
Graduate School of Chinese Academy of Sciences, Beijing 100039, China | |
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| Abstract: |
| The distributions of different forms of nitrogen in the surface sediments of the southern Huanghai Sea are different and affected by various factors.The contents of IEF-N,SOEF-N and TN gradually decrease eastward,and those of SAEF-N northward,while those of WAEF-N westward.Around the seaport of the old Huanghe(Yellow) River,the contents of both SOEF-N and TN are the highest.Among all the factors,the content of fine sediment is the predominant factor to affect the distributions of different forms of nitrogen.The contents of IEF-N,SOEF-N,and TN have visibly positive correlation with the content of fine sediments,and the correlative coefficient is 0.68,0.58 and 0.71 respectively,showing that the contents of the three forms of nitrogen increase with those of fine sediments.The content of WAEF-N is related to that of fine sediments to a certain extent,with a correlative coefficient of 0.35; while the content of SAEF-N is not related to that of fine sediments,showing that the content of SAEF-N is not controlled by fine grain-size fractions of sediments.1n addition,the distributions of different forms of nitrogen are also interacted one another,and the contents of IEF-N and SOEF-N are obviously affected by TN,while those of inorganic nitrogen(WAEF-N,SAEF-N and IEF-N) are not affected by SOEF-N and TN obviously,although they are interacted each other. |
| 中文摘要: |
| The distributions of different forms of nitrogen in the surface sediments of the southern Huanghai Sea are different and affected by various factors.The contents of IEF-N,SOEF-N and TN gradually decrease eastward,and those of SAEF-N northward,while those of WAEF-N westward.Around the seaport of the old Huanghe(Yellow) River,the contents of both SOEF-N and TN are the highest.Among all the factors,the content of fine sediment is the predominant factor to affect the distributions of different forms of nitrogen.The contents of IEF-N,SOEF-N,and TN have visibly positive correlation with the content of fine sediments,and the correlative coefficient is 0.68,0.58 and 0.71 respectively,showing that the contents of the three forms of nitrogen increase with those of fine sediments.The content of WAEF-N is related to that of fine sediments to a certain extent,with a correlative coefficient of 0.35; while the content of SAEF-N is not related to that of fine sediments,showing that the content of SAEF-N is not controlled by fine grain-size fractions of sediments.1n addition,the distributions of different forms of nitrogen are also interacted one another,and the contents of IEF-N and SOEF-N are obviously affected by TN,while those of inorganic nitrogen(WAEF-N,SAEF-N and IEF-N) are not affected by SOEF-N and TN obviously,although they are interacted each other. |
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