Source apportionment of sediment organic material in a semi-enclosed sea using Bayesian isotopic mixing model
Yu, Jing1,2; Zhang, Hua1
2017-06-15
发表期刊MARINE POLLUTION BULLETIN
ISSN0025-326X
卷号119期号:1页码:365-371
摘要To determine sources of organic material in semi-enclosed Bohai Sea, samples of marine surface sediments, suspended particulates in adjacent rivers and atmospheric deposition were collected and analyzed for grain size composition, total organic carbon(TOC and POC), total nitrogen (TN and PN), and stable isotopic composition (delta C-13 and delta N-15). Measured bulk C/N ratio (5.50-12.28), delta C-13 (- 23.59 similar to - 19.54 parts per thousand), and delta N-15 (2.80-8.07 parts per thousand) values of surface sediment organic materials indicated a mixed source of marine and terrestrial contributions. Spatial distribution of organic C, N and their stable isotope composition indicated a land-sea gradient of organic material content and source combination. Using MixMIR model with dual isotopes, it was estimated that relative contributions of marine, riverine, and atmospheric sources to sediment mixture were 69.0%, 9.6%, and 21.4%, respectively. Our results demonstrated the advantage of Bayesian isotope mixing models over the conventional end-member mixing models for source apportionment in coastal seas with complex source origins.
关键词Stable Isotopes Mixsir Carbon Budget Atmospheric Deposition Particulate Organic Carbon
DOI10.1016/j.marpolbul.2017.04.037
项目资助者Strategic Priority Research Program of the Chinese Academy of Sciences(XDA11020305) ; Key Deployment Project of Chinese Academy of Sciences(KZZD-EW-14)
收录类别SCI
关键词[WOS]EAST CHINA SEA ; SURFACE SEDIMENTS ; STABLE-ISOTOPE ; C/N RATIOS ; CARBONACEOUS AEROSOLS ; SEASONAL-VARIATIONS ; CONTINENTAL-SHELF ; ADJACENT SHELF ; RIVER ESTUARY ; BLACK CARBON
文章类型Article
语种英语
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS记录号WOS:000403511000054
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/22537
专题中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Yu, Jing,Zhang, Hua. Source apportionment of sediment organic material in a semi-enclosed sea using Bayesian isotopic mixing model[J]. MARINE POLLUTION BULLETIN,2017,119(1):365-371.
APA Yu, Jing,&Zhang, Hua.(2017).Source apportionment of sediment organic material in a semi-enclosed sea using Bayesian isotopic mixing model.MARINE POLLUTION BULLETIN,119(1),365-371.
MLA Yu, Jing,et al."Source apportionment of sediment organic material in a semi-enclosed sea using Bayesian isotopic mixing model".MARINE POLLUTION BULLETIN 119.1(2017):365-371.
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