Forms and functions of inorganic carbon in the Jiaozhou Bay sediments

	Forms and functions of inorganic carbon in the Jiaozhou Bay sediments
	Li Xuegang; Song Jinming; Yuan Huamao; Li Ning
	2009
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
卷号	28 期号:6 页码:30-41
文章类型	Article
摘要	Inorganic carbon forms and their influencing factors, mutual transformation and contribution to carbon cycling in the Jiaozhou Bay sediments were discussed. The results show that inorganic carbon in sediments could be divided into five forms: NaCl form, NH(3)center dot H(2)O form, NaOH form, NH(2)OH center dot HCl form and HCl form. Thereinto, NH(2)OH center dot HCl form and HCl form account for more than 70% of total inorganic carbon. There was close relationship among every form of inorganic carbon and their correlativity was clearly different with different sedimentary environment except the similar strong positive correlation among NH(2)OH center dot HCl form, HCl form and total inorganic carbon in all regions of the Jiaozhou Bay. All forms of inorganic carbon were influenced by organic carbon, pH, Eh, Es, nitrogen and phosphorus in sediments, but their influence had different characteristics in different regions. Every farm of inorganic carbon transformed into each other continuously during early diagenesis of sediments and the common phenomenon was that NaCl form, NH(3)center dot H(2)O form, NaOH form and NH(2)OH center dot HCl form might transform into steady HCl form. NaCl form, NH(3)center dot H(2)O form, NaOH form and NH(2)OH center dot HCl form could participate in carbon recycle and they are potential carbon source; HCl form may be buried for a long time in sediments, and it may be one of the final resting places of atmospheric CO(2). Inorganic carbon which entered into sediments was about 4.98 x 10(10) g in the Jiaozhou Bay every year, in which about 1.47x10(10) g of inorganic carbon might be buried for a long time and about 3.51. x 10(10) g of inorganic carbon might return into seawater and take part in carbon recycling.; Inorganic carbon forms and their influencing factors, mutual transformation and contribution to carbon cycling in the Jiaozhou Bay sediments were discussed. The results show that inorganic carbon in sediments could be divided into five forms: NaCl form, NH3 center dot H2O form, NaOH form, NH2OH center dot HCl form and HCl form. Thereinto, NH2OH center dot HCl form and HCl form account for more than 70% of total inorganic carbon. There was close relationship among every form of inorganic carbon and their correlativity was clearly different with different sedimentary environment except the similar strong positive correlation among NH2OH center dot HCl form, HCl form and total inorganic carbon in all regions of the Jiaozhou Bay. All forms of inorganic carbon were influenced by organic carbon, pH, Eh, Es, nitrogen and phosphorus in sediments, but their influence had different characteristics in different regions. Every farm of inorganic carbon transformed into each other continuously during early diagenesis of sediments and the common phenomenon was that NaCl form, NH3 center dot H2O form, NaOH form and NH2OH center dot HCl form might transform into steady HCl form. NaCl form, NH3 center dot H2O form, NaOH form and NH2OH center dot HCl form could participate in carbon recycle and they are potential carbon source; HCl form may be buried for a long time in sediments, and it may be one of the final resting places of atmospheric CO2. Inorganic carbon which entered into sediments was about 4.98 x 10(10) g in the Jiaozhou Bay every year, in which about 1.47x10(10) g of inorganic carbon might be buried for a long time and about 3.51. x 10(10) g of inorganic carbon might return into seawater and take part in carbon recycling.
关键词	Different Forms Of Inorganic Carbon Marine Carbon Cycling The Jiaozhou Bay Sediments
学科领域	Oceanography
收录类别	SCI
语种	英语
WOS记录号	WOS:000276834700004
引用统计	被引频次：3[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/337002/2614
专题	海洋生态与环境科学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Li Xuegang,Song Jinming,Yuan Huamao,et al. Forms and functions of inorganic carbon in the Jiaozhou Bay sediments[J]. ACTA OCEANOLOGICA SINICA,2009,28(6):30-41.
APA	Li Xuegang,Song Jinming,Yuan Huamao,&Li Ning.(2009).Forms and functions of inorganic carbon in the Jiaozhou Bay sediments.ACTA OCEANOLOGICA SINICA,28(6),30-41.
MLA	Li Xuegang,et al."Forms and functions of inorganic carbon in the Jiaozhou Bay sediments".ACTA OCEANOLOGICA SINICA 28.6(2009):30-41.

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