Export and dissolution of biogenic silica in the Yellow River (Huanghe) and implications for the estuarine ecosystem

doi:10.1016/j.marchem.2018.02.001

	Export and dissolution of biogenic silica in the Yellow River (Huanghe) and implications for the estuarine ecosystem
	Ran, Xiangbin 1,2; Liu, Jun 1,2; Zang, Jiaye 1; Xu, Bochao 3; Zhao, Shibin 3; Wu, Wentao 1; Wang, Hao 1; Liu, Sen 1,4
刊名	MARINE CHEMISTRY
	2018-03-20
卷号	200 页码:14-21
关键词	Biogenic silica Yellow (Huanghe) River Export Dissolution
ISSN号	0304-4203
DOI	10.1016/j.marchem.2018.02.001
英文摘要	Biogenic Silica (BSi) plays an essential role in availability of dissolved silicate (DSi) in aquatic ecosystems, but its role in silica cycling is still poorly characterized in the river and estuary systems. This study addressed the riverine BSi composition and reactive silica (RSi) export in the Yellow River, and estimated the contribution of terrestrial BSi dissolution to the estuary silica pool. Our results indicated that phytoliths comprised 1.3%-87% of the riverine BSi, while diatoms accounted for 13%-99% of the riverine BSi. The Yellow River transported 24 Gg yr(-1) of BSi and 26 Gg yr(-1) of DSi loadings, respectively; 63% of the riverine BSi and 54% of the riverine DSi fluxes were transported during the period from April to July. In total 46% of annual BSi loading was contributed by phytolith BSi in the Yellow River. The terrestrial BSi dissolution in the estuary would represent 15%-63% of riverine DSi loading on the basis of dissolution test, and low salinity could play an important role in enhancement of terrestrial BSi solubility, especially in the first few days during the estuarine mixing process. Although the terrestrial BSi represents a significant DSi contribution to the silica biogeochemical cycle in coastal waters, it tends to be refractory with the increasing of salinity.
资助项目	Basic Scientific Fund for National Public Research Institutes of China[2017S03] ; Basic Scientific Fund for National Public Research Institutes of China[2017Q10]
WOS关键词	TERRESTRIAL ECOSYSTEMS ; CARBON SEQUESTRATION ; ORGANIC-CARBON ; BOHAI SEA ; SEDIMENTS ; BASIN ; CYCLE ; OCEAN ; BIOGEOCHEMISTRY ; PHYTOLITHS
WOS研究方向	Chemistry ; Oceanography
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000429756500002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26521]
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, Inst Oceanog 1, Res Ctr Marine Ecol, Qingdao 266061, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266237, Peoples R China 3.Ocean Univ China, Key Lab Marine Chem Theory & Technol, Minist Educ, Qingdao 266100, Peoples R China 4.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,Liu, Jun,Zang, Jiaye,et al. Export and dissolution of biogenic silica in the Yellow River (Huanghe) and implications for the estuarine ecosystem[J]. MARINE CHEMISTRY,2018,200:14-21.
APA	Ran, Xiangbin.,Liu, Jun.,Zang, Jiaye.,Xu, Bochao.,Zhao, Shibin.,...&Liu, Sen.(2018).Export and dissolution of biogenic silica in the Yellow River (Huanghe) and implications for the estuarine ecosystem.MARINE CHEMISTRY,200,14-21.
MLA	Ran, Xiangbin,et al."Export and dissolution of biogenic silica in the Yellow River (Huanghe) and implications for the estuarine ecosystem".MARINE CHEMISTRY 200(2018):14-21.