Biogenic silica composition and delta C-13 abundance in the Changjiang (Yangtze) and Huanghe (Yellow) Rivers with implications for the silicon cycle

doi:10.1016/j.scitotenv.2016.11.161

	Biogenic silica composition and delta C-13 abundance in the Changjiang (Yangtze) and Huanghe (Yellow) Rivers with implications for the silicon cycle
	Ran, Xiangbin 1; Xu, Bochao 2; Liu, Jun 1; Zhao, Chenying 1; Liu, Sen 1,3; Zang, Jiaye 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017-02
卷号	579 页码:1541-1549
关键词	Biogenic silica Changjiang River (Yangtze River) Huanghe River (Yellow River) Composition Carbon isotope Source
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2016.11.161
英文摘要	The study was carried out to address amethod for separation of terrestrial and marine biogenic silica (BSi) in estuaries based on BSi compositions and delta C-13 values in BSi associated organicmatter (delta C-13(BSi)). We used two world class major rivers - the Changjiang (Yangtze) and Huanghe (Yellow) Rivers as examples to illustrate our approach. Our results for these rivers indicate that riverine BSi is comprised mainly of phytoliths and diatoms. River BSi concentrations vary with terrestrial inputs and in-stream primary production. Although the fluvial BSi sources are complex, the terrestrial delta(CBSi)-C-13 signals are quite unique (- 24.7 +/- 0.8), significantly lower than the marine delta(CBSi)-C-13 values (- 21.3 +/- 0.07, central Yellow Sea) (p < 0.01). Thus, the variation of delta C-13 within BSi organicmatter can provide terrestrial source information on the biogeochemistry of silicon in estuaries and the adjacent shelf. The delta(CBSi)-C-13 combination could potentially act as an efficient tool to study environmental change in coastal areas on decadal time-scales since this index may respond to variable terrestrial fluxes from land, as well as to changed phytoplankton assemblages in the coastal ocean. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	Natural Science Foundation of China[41576075] ; Natural Science Foundation of China[41376093] ; Natural Science Foundation of China[41620104001] ; Natural Science Foundation of China[41106072]
WOS关键词	PARTICULATE ORGANIC-MATTER ; CARBON-ISOTOPE COMPOSITION ; AMAZON RIVER ; RATIOS ; SEDIMENTS ; ESTUARY ; MARINE ; VARIABILITY ; DIATOMS ; BASIN
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000393320400053
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26681]
专题	自然资源部第一海洋研究所
通讯作者	Ran, Xiangbin
作者单位	1.State Ocean Adm, Res Ctr Marine Ecol, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China 3.State Ocean Adm, Tianjin Marine Environm Monitoring Cent Stn, Tianjin 300450, Peoples R China
推荐引用方式 GB/T 7714	Ran, Xiangbin,Xu, Bochao,Liu, Jun,et al. Biogenic silica composition and delta C-13 abundance in the Changjiang (Yangtze) and Huanghe (Yellow) Rivers with implications for the silicon cycle[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,579:1541-1549.
APA	Ran, Xiangbin,Xu, Bochao,Liu, Jun,Zhao, Chenying,Liu, Sen,&Zang, Jiaye.(2017).Biogenic silica composition and delta C-13 abundance in the Changjiang (Yangtze) and Huanghe (Yellow) Rivers with implications for the silicon cycle.SCIENCE OF THE TOTAL ENVIRONMENT,579,1541-1549.
MLA	Ran, Xiangbin,et al."Biogenic silica composition and delta C-13 abundance in the Changjiang (Yangtze) and Huanghe (Yellow) Rivers with implications for the silicon cycle".SCIENCE OF THE TOTAL ENVIRONMENT 579(2017):1541-1549.