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题名:
Source apportionment of sediment organic material in a semi-enclosed sea using Bayesian isotopic mixing model
作者: Yu, Jing1,2; Zhang, Hua1
刊名: MARINE POLLUTION BULLETIN
ISSN号: 0025-326X
出版日期: 2017-06-15
卷号: 119, 期号:1, 页码:365-371
关键词: Stable isotopes ; MixSIR Carbon budget ; Atmospheric deposition ; Particulate organic carbon
DOI: 10.1016/j.marpolbul.2017.04.037
英文摘要: 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.
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
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)
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
收录类别: SCI
语种: 英语
WOS记录号: WOS:000403511000054
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/22537
Appears in Collections:中科院海岸带环境过程与生态修复重点实验室_期刊论文

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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

Recommended Citation:
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.
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