| 摘要: |
| 本文根据1983-1986年胶州湾水域理化环境的调査资料,对胶州湾及临近水域硝酸盐、亚硝酸盐、氨氮、磷酸盐和硅酸盐的空间时间分布变化、主要来源及它们与其它环境因子的关系等作一些探讨。 |
| 关键词: 胶州湾、营养盐 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第2254号 |
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| NUTRIENTS IN JIAOZHOU. BAY WATERS |
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Shen Zhiliang, Lu Jiaping, Liu Xingjun, Wang Yifei
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| This paper discusses 1983-1986 space-time distributions of NO3-N,NO2-N,NH4-N,PO4-P and SiO3-Si,their origins and the relationships between them and other environmental factors.High concentrations of inorganic N(particularly NH4-N) and PO4-P were found in eastern and northeastern waters and low concenteations in the middle waters of the Jiaozhou Bay,bay mouth and outer bay waters,indication clearly that the high concentrations of inorganic N and PO4-P were mainly from the output of industrial and residential area sewage in the east coast.The concentration of NH4-N(yearly average,5.0-10.2μmol/L during 1983-1986) was much higher than NO3-N(yearly average,1.1-2.5 μmol/L during 1983-1986) in the Jiaozhou Bay seawater, and the higher concentration of NH4-N(about 72 percent of total inorganic N) was the main form of inorganic N in the seawater. The atomic ratio between NO3-N and PO4-P (monthly average, 1. 4-16. 1, yearly average, 5.8 in 1985) was much lower than that between total inorganic N and PO4-P (monthly average, 9.3-60, yearly average,19.4 in 1985). It showed the system of NH4-N,NO2-N and NO3-N was not thermodynamic equilibrium. The concentration of SiO3-Si was lower (monthly average, 0.47-5.7 μmol/L, yearly average 2.7μmol/L) and could not be detected at some stations in some mouths.It was possible that low concentration SiO3-Si sometimes limited the growth of phytoplankton. |
| Key words: NUTRIENTS,JIAOZHOU BAY |
