Causes and consequences of changes in nutrient structure in the Jiaozhou Bay
文献类型：期刊论文
| 作者 | Zhao, SJ; Jiao, NZ; Shen, ZL; Wu, YL |
| 刊名 | JOURNAL OF INTEGRATIVE PLANT BIOLOGY
 |
| 出版日期 | 2005-04-01 |
| 卷号 | 47期号:4页码:396-410 |
| 关键词 | Anthropogenic Factor Diatoms Jiaozhou Bay Nutrient Structure Silicon Limitation Stoichiometric Calculations |
| ISSN号 | 1672-9072 |
| 文献子类 | Article |
| 英文摘要 | Concentrations and ratios of nutrients in Jiaozhou Bay, China, have changed much in the past decades, with trends indicating an increase in nitrogen and a decrease in silicate. Statistical analysis has shown that the long-term variations of nutrients are associated with agricultural activities, precipitation, and anthropogenic factors. Stoichiometric calculations indicate that the nutrient structure has become more and more unbalanced. There has been almost no possibility for nitrogen limitation since the 1980s, the probability of P limitation has increased, and the probability of Si limitation has also increased markedly from the 1980s to the 1990s. As a consequence of changes in nutrient structure, a decrease in the abundance of net phytoplankton was evident, whereas total chlorophyll a levels have remained roughly unchanged at around 3.55 mu g/L. Thus, it is likely that smaller species have taken the niche vacated by the larger species. Changes in phytoplankton size and species composition may ultimately lead to various functional and structural changes at the system level.; Concentrations and ratios of nutrients in Jiaozhou Bay, China, have changed much in the past decades, with trends indicating an increase in nitrogen and a decrease in silicate. Statistical analysis has shown that the long-term variations of nutrients are associated with agricultural activities, precipitation, and anthropogenic factors. Stoichiometric calculations indicate that the nutrient structure has become more and more unbalanced. There has been almost no possibility for nitrogen limitation since the 1980s, the probability of P limitation has increased, and the probability of Si limitation has also increased markedly from the 1980s to the 1990s. As a consequence of changes in nutrient structure, a decrease in the abundance of net phytoplankton was evident, whereas total chlorophyll a levels have remained roughly unchanged at around 3.55 mu g/L. Thus, it is likely that smaller species have taken the niche vacated by the larger species. Changes in phytoplankton size and species composition may ultimately lead to various functional and structural changes at the system level. |
| 学科主题 | Biochemistry & Molecular Biology ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000228185500002 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2711]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanog, Qingdao 266071, Peoples R China 2.Xiamen Univ, Minist Educ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China 3.State Ocean Adm, Qingdao Marine Engn Prospecting Inst, Qingdao 266033, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, SJ,Jiao, NZ,Shen, ZL,et al. Causes and consequences of changes in nutrient structure in the Jiaozhou Bay[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2005,47(4):396-410. |
| APA | Zhao, SJ,Jiao, NZ,Shen, ZL,&Wu, YL.(2005).Causes and consequences of changes in nutrient structure in the Jiaozhou Bay.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,47(4),396-410. |
| MLA | Zhao, SJ,et al."Causes and consequences of changes in nutrient structure in the Jiaozhou Bay".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 47.4(2005):396-410. |
入库方式： OAI收割
来源：海洋研究所
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