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| 渤海湾海河口区氮的迁移 |
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古堂秀, 徐贤义, 戴敏英, 周陈年
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中国科学院海洋研究所
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| 摘要: |
| 对于氮在河口区、海湾、大洋中的分布，氮的迁移，以及氮的地球化学，国内外己作过大量研究(Cooper, 1937; Brand, 1937-42 ；顾宏堪等，1981, 1982 )。本文主要从环境化学的角度了解渤海湾海河口区氮的分布规律，探讨各态氮从河口区入海后的变化、迁移和转化过程，为研究海洋中氮的迁移提供依据，也为氮的含量变化以及富营养化程度对河口区生物及水产资源的影响提供必要数据。 |
| 关键词: 渤海湾海河口区、氮的迁移 |
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| 基金项目:中国科学院海洋研究所调查研究报告第1406号 |
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| NITROGEN MIGRATION IN THE HAIHE RIVER MOUTH AREA OF THE BOHAI BAY |
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Gu Tangxiu, Xu Xianyi, Dai Minying, Zhou Chennian
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| This paper presents the results of studies on the determination of the contents of different states of nitrogen in the Haihe River estuary area in the Bohai Bay.
Distributional patterns and the process of migration of different states of nitrogen are discussed. It is found that in the Yongdingxing River, organic N is fully resolved, oxidized, and converted into inorganic N (TON →NH4-N →NO2-N→NO3-N), while in the southern sewage discharge river, it is not so.
The higher contents of inorganic nitrogen are found only in the nearshore areas. Different states of nitrogen show the same positive correlation with CB and other factors. In the Yongdingxing River, bacteria play a main role in the conversion of organic nitrogen. Due to the influence of sewage discharge, the NO3-N/PO4-P ratio in the nearshore estuary area is 34, in the offshore area, 5 and 6. |
| Key words: NITROGEN MIGRATION,HAIHE RIVER MOUTH AREA OF THE BOHAI BAY |
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