Forms and functions of inorganic carbon in the Jiaozhou Bay sediments

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	Forms and functions of inorganic carbon in the Jiaozhou Bay sediments
	Li Xuegang; Song Jinming; Yuan Huamao; Li Ning
刊名	ACTA OCEANOLOGICA SINICA
	2009
卷号	28 期号:6 页码:30-41
关键词	Different Forms Of Inorganic Carbon Marine Carbon Cycling The Jiaozhou Bay Sediments
ISSN号	0253-505X
文献子类	Article
英文摘要	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.
学科主题	Oceanography
语种	英语
WOS记录号	WOS:000276834700004
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/2615]
专题	海洋研究所_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
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.