气候变化领域集成服务门户(CCPortal): Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries; South Korea

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DOI	10.1016/j.marpolbul.2019.110719
	Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries; South Korea
	Kang S.; Kim J.-H.; Ryu J.-S.; Shin K.-H.
发表日期	2020
ISSN	0025326X
卷号	150
英文摘要	We investigated the source, composition, and reactivity of particulate organic carbon (POC) in two contrasting Korean estuary systems, a closed estuary (Geum) (i.e., with an estuary dam at the river mouth) and an open (Seomjin) estuary. A dual isotope (δ13CPOC and Δ14CPOC) approach was applied to surface water samples collected along a salinity gradient in August 2016. Our results indicate that phytoplankton-derived POC was the main contributor to the total POC pool in the reservoir of the Geum estuary, while terrestrial-derived POC predominated the upper Seomjin estuary. A simple binary mixing model using Δ14CPOC revealed a higher modern POC contribution (87–90%) in the Geum estuary reservoir than that (77%) of the upper Seomjin estuary. Accordingly, it appears that an estuary dam can alter the source and reactivity of POC in a reservoir, which can be transferred to the adjacent coastal ecosystem. © 2019 Elsevier Ltd
英文关键词	Carbon isotopes; Estuary dam; Geum estuary; Particulate organic carbon; Seomjin estuary
语种	英语
scopus关键词	Ecosystems; Isotopes; Organic carbon; Reservoirs (water); Binary mixing; Carbon isotopes; Coastal ecosystems; Estuary system; Particulate organic carbon; River mouths; Salinity gradients; South Korea; Estuaries; carbon; surface water; carbon; carbon isotope; chemical reaction; estuary; isotopic composition; particulate organic carbon; phytoplankton; pollutant source; coastal waters; dam (barrier); environmental temperature; estuary; Geum; particulate organic carbon; river; salinity; seasonal variation; South Korea; suspended particulate matter; total organic carbon; water sampling; ecosystem; environmental monitoring; estuary; Geum; Kum River; Somjin River; South Korea; Geum; Carbon; Carbon Isotopes; Ecosystem; Environmental Monitoring; Estuaries; Geum; Republic of Korea; Rivers
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149389
作者单位	Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan-si, Gyeonggi-do 415588, South Korea; KOPRI Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, South Korea; Department of Earth and Environmental Sciences, Pukyong National University, Busan, 48513, South Korea
推荐引用方式 GB/T 7714	Kang S.,Kim J.-H.,Ryu J.-S.,et al. Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries; South Korea[J],2020,150.
APA	Kang S.,Kim J.-H.,Ryu J.-S.,&Shin K.-H..(2020).Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries; South Korea.Marine Pollution Bulletin,150.
MLA	Kang S.,et al."Dual carbon isotope (δ13C and Δ14C) characterization of particulate organic carbon in the Geum and Seomjin estuaries; South Korea".Marine Pollution Bulletin 150(2020).