气候变化领域集成服务门户(CCPortal): Island-wide variation in provenance of riverine sedimentary organic carbon: A case study from Taiwan

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DOI	10.1016/j.epsl.2020.116238
	Island-wide variation in provenance of riverine sedimentary organic carbon: A case study from Taiwan
	Lin B.; Liu Z.; Eglinton T.I.; Kandasamy S.; Blattmann T.M.; Haghipour N.; Huang K.-F.; You C.-F.
发表日期	2020
ISSN	0012821X
卷号	539
英文摘要	Oceanic islands in the western Pacific export ∼35% of particulate organic carbon (OC) to the world ocean, but composition and age of OC varies dramatically among and within the islands. Understanding island-wide variation in sources and controls on the sedimentary OC in a series of rivers is therefore essential to assess the role of oceanic islands on the global carbon cycle. Stable and radioactive carbon isotopic compositions of sedimentary OC in 17 rivers across Taiwan indicate various proportions of biospheric OC derived from soil overlain by C3 and C4 vegetation and petrogenic OC from sedimentary and metamorphic rocks. Higher fractions of biospheric OC occur in sediments of northwestern rivers, while petrogenic OC is dominant in southern river sediments. Vegetation type, lithological setting, and sediment yield in river basins largely control island-wide OC compositions in river sediments. Considerable differences in export fluxes of biospheric and petrogenic OC based on different provenance proxies exist for individual rivers, highlighting the need for additional radiocarbon measurement (with high sample frequency) to better understand the role of oceanic islands in the global carbon cycle. © 2020 Elsevier B.V.
关键词	carbon isotope organic carbon radiocarbon river sediments Taiwan
英文关键词	Biospherics; Isotopes; Lithology; Metamorphic rocks; Rivers; Sedimentary rocks; Sedimentology; Sediments; Vegetation; Carbon isotopes; Carbon isotopic composition; Global carbon cycle; Particulate organic carbon; radiocarbon; River sediments; Sample frequency; Taiwan; Organic carbon; carbon cycle; carbon isotope; fluvial deposit; isotopic composition; organic carbon; provenance; radiocarbon dating; sediment chemistry; vegetation type; Taiwan
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202740
作者单位	State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China; Geological Institute, ETH Zürich, Zürich, 8092, Switzerland; Department of Geological Oceanography, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China; Biogeochemistry Program, Japan Agency for Marine-Earth Science and Technology, Yokosuka, 237-0061, Japan; Laboratory of Ion Beam Physics, ETH Zürich, Zürich, 8093, Switzerland; Institute of Earth Sciences, Academia Sinica, Taipei, 11529, Taiwan; Department of Earth Sciences, National Cheng Kung University, Tainan, 70101, Taiwan
推荐引用方式 GB/T 7714	Lin B.,Liu Z.,Eglinton T.I.,et al. Island-wide variation in provenance of riverine sedimentary organic carbon: A case study from Taiwan[J],2020,539.
APA	Lin B..,Liu Z..,Eglinton T.I..,Kandasamy S..,Blattmann T.M..,...&You C.-F..(2020).Island-wide variation in provenance of riverine sedimentary organic carbon: A case study from Taiwan.Earth and Planetary Science Letters,539.
MLA	Lin B.,et al."Island-wide variation in provenance of riverine sedimentary organic carbon: A case study from Taiwan".Earth and Planetary Science Letters 539(2020).