Geochemical characteristics of nitrogen in the southern Yellow Sea surface sediments
文献类型：期刊论文
| 作者 | Lu, XX; Song, JM ; Li, XG; Yuan, HM; Zhan, TR; Li, N; Gao, XL
|
| 刊名 | JOURNAL OF MARINE SYSTEMS
 |
| 出版日期 | 2005-05-01 |
| 卷号 | 56期号:1-2页码:17-27 |
| 关键词 | The Forms Of Nitrogen Biogeochemical Cycling The souThern Yellow Sea Surface Sediment |
| ISSN号 | 0924-7963 |
| DOI | 10.1016/j.jmarsys.2004.06.009 |
| 文献子类 | Article |
| 英文摘要 | Roles and distributions of various forms of nitrogen in biogeochemical cycling in the southern Yellow Sea surface sediments were investigated. The southern Yellow Sea could be divided into three regions (I, II and III) according to the proportion of fine-grained sediment in > 65%, 35-65% and < 35%, respectively. The ratios of different forms of nitrogen contents between each two of the three regions indicated that the nitrogen contents increased with the proportion of fine-grained sediment increasing. The quanta of exchangeable forms of nitrogen were similar in the three regions, while their releasing time increased from regions I to III, indicating that the cycle of nitrogen in fine-grained sediments was shorter than that in coarse-grained sediments. Nitrogen burial fluxes were also similar in these regions, while the burial efficiency increased from regions I to III. The highest burial efficiency was 30.21% in region III, indicating that more than 70% of nitrogen in the southern Yellow Sea surface sediments could be released to take part in biogeochemical recycling. When all the four forms of exchangeable nitrogen (nitrogen in ion exchangeable form (IEF-N), nitrogen in weak acid extractable form (WAEF-N), nitrogen in strong alkali extractable form (SAEF-N) and nitrogen in strong oxidant extractable form (SOEF-N)) were released to take part in recycling, their potential contributions were 80% (SOEF-N), 11% (IEF-N), 6% (SAEF-N), 3% (WAEF-N) respectively, which showed that SOEF-N was the predominant one, and its contribution to biogeochemical cycling was the highest. (c) 2004 Elsevier B.V. All rights reserved.; Roles and distributions of various forms of nitrogen in biogeochemical cycling in the southern Yellow Sea surface sediments were investigated. The southern Yellow Sea could be divided into three regions (I, II and III) according to the proportion of fine-grained sediment in > 65%, 35-65% and < 35%, respectively. The ratios of different forms of nitrogen contents between each two of the three regions indicated that the nitrogen contents increased with the proportion of fine-grained sediment increasing. The quanta of exchangeable forms of nitrogen were similar in the three regions, while their releasing time increased from regions I to III, indicating that the cycle of nitrogen in fine-grained sediments was shorter than that in coarse-grained sediments. Nitrogen burial fluxes were also similar in these regions, while the burial efficiency increased from regions I to III. The highest burial efficiency was 30.21% in region III, indicating that more than 70% of nitrogen in the southern Yellow Sea surface sediments could be released to take part in biogeochemical recycling. When all the four forms of exchangeable nitrogen (nitrogen in ion exchangeable form (IEF-N), nitrogen in weak acid extractable form (WAEF-N), nitrogen in strong alkali extractable form (SAEF-N) and nitrogen in strong oxidant extractable form (SOEF-N)) were released to take part in recycling, their potential contributions were 80% (SOEF-N), 11% (IEF-N), 6% (SAEF-N), 3% (WAEF-N) respectively, which showed that SOEF-N was the predominant one, and its contribution to biogeochemical cycling was the highest. (c) 2004 Elsevier B.V. All rights reserved. |
| 学科主题 | Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000230025200002 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/2691]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 海洋研究所_海洋地质与环境重点实验室 |
| 作者单位 | 1.Acad Sinica, Inst Oceanol, Qingdao 266071, Peoples R China 2.Ocean Univ China, Marine Geol Coll, Qingdao 266003, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, XX,Song, JM,Li, XG,et al. Geochemical characteristics of nitrogen in the southern Yellow Sea surface sediments[J]. JOURNAL OF MARINE SYSTEMS,2005,56(1-2):17-27. |
| APA | Lu, XX.,Song, JM.,Li, XG.,Yuan, HM.,Zhan, TR.,...&Gao, XL.(2005).Geochemical characteristics of nitrogen in the southern Yellow Sea surface sediments.JOURNAL OF MARINE SYSTEMS,56(1-2),17-27. |
| MLA | Lu, XX,et al."Geochemical characteristics of nitrogen in the southern Yellow Sea surface sediments".JOURNAL OF MARINE SYSTEMS 56.1-2(2005):17-27. |
入库方式： OAI收割
来源：海洋研究所
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