Distributions of inorganic nutrients in the bohai sea of china
作者： Li Zhengyan , Bai Jie , Shi Jinhui , Gao Huiwang
DOI: 10.1007/S11802-003-0038-8
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摘要: To study the contents and distribution of inorganic nutrients in Bohai Sea China, two cruise surveys were undertaken August (summer) 2000 January (winter) 2001, respectively. A total 595 water samples collected from 91 stations five nutrients, i.e., nitrate, nitrite, ammonia, phosphate silicate, analyzed for each sample. The results show that average concentration dissolved nitrogen (DIN) winter (6.529 μmol L−1) is significantly higher than summer (3.717 L−1). phosphorus (0.660 also (0.329 Mean silicate (7.858 is, however, not different (7.200 Nutrients vary considerably areas Sea. DIN Laizhou Bay (4.444 L−1), example, those (2.270 Strait (2.431 which caused by discharge large amounts into via Yellow River. vertical patterns. In summer, bottom layer are generally richer surface middle layers. winter, Compared with historic data, have increased continually since early 1980 s. Based on atomic ratios still limiting factor algal growth
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