Geochemical characteristics of nitrogen in the southern Yellow Sea surface sediments

doi:10.1016/j.jmarsys.2004.06.009

	Geochemical characteristics of nitrogen in the southern Yellow Sea surface sediments
	Lu, XX ; Song, JM; Li, XG ; Yuan, HM; Zhan, TR ; Li, N ; Gao, XL
	2005-05-01
发表期刊	JOURNAL OF MARINE SYSTEMS
ISSN	0924-7963
卷号	56 期号:1-2 页码:17-27
文章类型	Article
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.
关键词	The Forms Of Nitrogen Biogeochemical Cycling The souThern Yellow Sea Surface Sediment
学科领域	Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
DOI	10.1016/j.jmarsys.2004.06.009
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000230025200002
引用统计	被引频次：40[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/2690
专题	海洋生态与环境科学重点实验室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.

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