Characteristics of nitrogen forms in the surface sediments of southwestern Nansha Trough,South China Sea
文献类型：CNKI期刊论文
| 作者 | Zheng GX(郑国侠); Song JM(宋金明) ; Sun YM(孙云明); Dai JC(戴纪翠); Zhang P(张蓬)
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| 发表日期 | 2008-08-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | nitrogen form surface sediment Nansha Trough South China Sea |
| 英文摘要 | The area of the southwestern Nansha Trough is one of the most productive areas of the southern South China Sea.It is a typical semi-deep sea area of transition from shoal to abyssal zone.To understand distributions and roles of nitrogen forms involved in biogeochemical cycling in this area,contents of nitrogen in four extractable forms: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 oxidation extractable form(SOEF-N),as well as in total nitrogen content(TN) in surface sediments were determined from samples collected from the cruise in April-May 1999.The study area was divided into three regions(A,B and C) in terms of clay sediment(<4 μm) content at <40%,40%-60% and >60%,respectively.Generally,region C was the richest in the nitrogen of all forms and region A the poorest,indicating that the finer the grain size is,the richer the contents of various nitrogen are.The burial efficiency of total nitrogen in surface sediments was 28.79%,indicating that more than 70% of nitrogen had been released and participated in biogeochemical recycling through sediment-water interface. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Basic Research Program of China (973 Program, No. 2007CB407305) ; Qingdao Special Project for Outstanding Scientists (No.05-2-JC-90) ; the 100 Talents Project of Chinese Academy of Sciences (No.2003-202) |
| 卷 | v.26期:03页:50-58 |
| 语种 | 英文; |
| 分类号 | P736.21 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/192894]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.InstituteofOceanology,ChineseAcademyofSciences,Qingdao266071,China 2.CollegeofEnvironmentandchemicalEngineering,Dalianuniversity,Dalian116622,China |
| 推荐引用方式 GB/T 7714 | Zheng GX,Song JM,Sun YM,et al. Characteristics of nitrogen forms in the surface sediments of southwestern Nansha Trough,South China Sea. 2008. |
入库方式： OAI收割
来源：海洋研究所
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