IOCAS-IR  > 海洋生态与环境科学重点实验室
Characteristics of nitrogen forms in the surface sediments of southwestern Nansha Trough, South China Sea
Zheng Guoxia1,2; Song Jinming1; Sun Yunming1; Dai Jicui1,2; Zhang Peng1,2
2008-08-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
Volume26Issue:3Pages:280-288
SubtypeArticle
AbstractThe 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 mu m) 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.; 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 mu m) 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.
KeywordNitrogen Form Surface Sediment Nansha Trough South China Sea
Subject AreaLimnology ; Oceanography
DOI10.1007/s00343-008-0280-4
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000258601000009
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/5404
Collection海洋生态与环境科学重点实验室
实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Dalian Univ, Coll Environm & Chem Engn, Dalian 116622, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zheng Guoxia,Song Jinming,Sun Yunming,et al. Characteristics of nitrogen forms in the surface sediments of southwestern Nansha Trough, South China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2008,26(3):280-288.
APA Zheng Guoxia,Song Jinming,Sun Yunming,Dai Jicui,&Zhang Peng.(2008).Characteristics of nitrogen forms in the surface sediments of southwestern Nansha Trough, South China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,26(3),280-288.
MLA Zheng Guoxia,et al."Characteristics of nitrogen forms in the surface sediments of southwestern Nansha Trough, South China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 26.3(2008):280-288.
Files in This Item:
File Name/Size DocType Version Access License
zheng-Characteristic(404KB) 限制开放--View
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zheng Guoxia]'s Articles
[Song Jinming]'s Articles
[Sun Yunming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zheng Guoxia]'s Articles
[Song Jinming]'s Articles
[Sun Yunming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zheng Guoxia]'s Articles
[Song Jinming]'s Articles
[Sun Yunming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: zheng-Characteristics of nitrogen forms .pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.