Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River
A one-year study was carried out to investigate the seasonal fluxes and source variation of organic carbon transported by two major Chinese rivers, the Yellow River and Changjiang. In 2009, the Yellow River and Changjiang transported 3.20 x 10(10) g and 1.58 x 10(12) g DOC and 3.89 x 10(11) g and 1....
Published in: | Global Biogeochemical Cycles |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/12439 https://doi.org/10.1029/2011GB004130 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/12439 2023-05-15T15:17:27+02:00 Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River Wang, Xuchen Ma, Haiqing Li, Ronghua Song, Zhensu Wu, Jinping Wang, XC (reprint author), Univ Massachusetts, Dept Environm Earth & Ocean Sci, 100 Morrissey Blvd, Boston, MA 02125 USA. 2012-05-25 http://ir.qdio.ac.cn/handle/337002/12439 https://doi.org/10.1029/2011GB004130 英语 eng GLOBAL BIOGEOCHEMICAL CYCLES Wang, Xuchen; Ma, Haiqing; Li, Ronghua; Song, Zhensu; Wu, Jinping.Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River,GLOBAL BIOGEOCHEMICAL CYCLES,2012,26():GB2025 http://ir.qdio.ac.cn/handle/337002/12439 doi:10.1029/2011GB004130 Lower Mississippi River Arctic-ocean Temporal Variability North-atlantic Turbid Rivers Matter Estuary Sediment Huanghe System Environmental Sciences Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Article 期刊论文 2012 ftchinacasciocas https://doi.org/10.1029/2011GB004130 2022-06-27T05:34:29Z A one-year study was carried out to investigate the seasonal fluxes and source variation of organic carbon transported by two major Chinese rivers, the Yellow River and Changjiang. In 2009, the Yellow River and Changjiang transported 3.20 x 10(10) g and 1.58 x 10(12) g DOC and 3.89 x 10(11) g and 1.52 x 10(12) g POC, respectively. The dominant input of the terrestrial organic matter occurred during the high discharge period from June to July for the Yellow River and from June to August for Changjiang, accounting for 36-44% of the DOC and 72-86% of the POC transported by the two rivers in 2009. The Yellow River transported much higher concentrations of inorganic carbon than organic carbon, while a reverse trend was found in the Changjiang, indicating the different sources of carbon discharged by the two rivers. Using radiocarbon and stable carbon isotope measurements, we identified the different sources and seasonal variations of organic carbon transported by the Yellow River and Changjiang. The Yellow River carried old POC with radiocarbon ages ranging from 4000 to 8000 years, while POC transported by Changjiang had a relatively younger C-14 age ranging from 800 to 1060 years. The C-14 ages of DOC were relatively younger (305-1570 years) and showed less variation between the two rivers. The seasonal variations found in C-14 ages of DOC and POC indicate that a large fraction of recent-fixed labile organic carbon was transported by the two rivers in the spring and summer months. The different sources and seasonal variations in both fluxes and sources of organic carbon transported by the Yellow River and Changjiang could have an important influence on the biogeochemical cycle and ecosystems in the estuaries and adjacent coastal waters of the East China Sea. Article in Journal/Newspaper Arctic Arctic Ocean North Atlantic Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Arctic Ocean Global Biogeochemical Cycles 26 2 n/a n/a |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Lower Mississippi River Arctic-ocean Temporal Variability North-atlantic Turbid Rivers Matter Estuary Sediment Huanghe System Environmental Sciences Geosciences Multidisciplinary Meteorology & Atmospheric Sciences |
spellingShingle |
Lower Mississippi River Arctic-ocean Temporal Variability North-atlantic Turbid Rivers Matter Estuary Sediment Huanghe System Environmental Sciences Geosciences Multidisciplinary Meteorology & Atmospheric Sciences Wang, Xuchen Ma, Haiqing Li, Ronghua Song, Zhensu Wu, Jinping Wang, XC (reprint author), Univ Massachusetts, Dept Environm Earth & Ocean Sci, 100 Morrissey Blvd, Boston, MA 02125 USA. Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River |
topic_facet |
Lower Mississippi River Arctic-ocean Temporal Variability North-atlantic Turbid Rivers Matter Estuary Sediment Huanghe System Environmental Sciences Geosciences Multidisciplinary Meteorology & Atmospheric Sciences |
description |
A one-year study was carried out to investigate the seasonal fluxes and source variation of organic carbon transported by two major Chinese rivers, the Yellow River and Changjiang. In 2009, the Yellow River and Changjiang transported 3.20 x 10(10) g and 1.58 x 10(12) g DOC and 3.89 x 10(11) g and 1.52 x 10(12) g POC, respectively. The dominant input of the terrestrial organic matter occurred during the high discharge period from June to July for the Yellow River and from June to August for Changjiang, accounting for 36-44% of the DOC and 72-86% of the POC transported by the two rivers in 2009. The Yellow River transported much higher concentrations of inorganic carbon than organic carbon, while a reverse trend was found in the Changjiang, indicating the different sources of carbon discharged by the two rivers. Using radiocarbon and stable carbon isotope measurements, we identified the different sources and seasonal variations of organic carbon transported by the Yellow River and Changjiang. The Yellow River carried old POC with radiocarbon ages ranging from 4000 to 8000 years, while POC transported by Changjiang had a relatively younger C-14 age ranging from 800 to 1060 years. The C-14 ages of DOC were relatively younger (305-1570 years) and showed less variation between the two rivers. The seasonal variations found in C-14 ages of DOC and POC indicate that a large fraction of recent-fixed labile organic carbon was transported by the two rivers in the spring and summer months. The different sources and seasonal variations in both fluxes and sources of organic carbon transported by the Yellow River and Changjiang could have an important influence on the biogeochemical cycle and ecosystems in the estuaries and adjacent coastal waters of the East China Sea. |
format |
Article in Journal/Newspaper |
author |
Wang, Xuchen Ma, Haiqing Li, Ronghua Song, Zhensu Wu, Jinping Wang, XC (reprint author), Univ Massachusetts, Dept Environm Earth & Ocean Sci, 100 Morrissey Blvd, Boston, MA 02125 USA. |
author_facet |
Wang, Xuchen Ma, Haiqing Li, Ronghua Song, Zhensu Wu, Jinping Wang, XC (reprint author), Univ Massachusetts, Dept Environm Earth & Ocean Sci, 100 Morrissey Blvd, Boston, MA 02125 USA. |
author_sort |
Wang, Xuchen |
title |
Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River |
title_short |
Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River |
title_full |
Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River |
title_fullStr |
Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River |
title_full_unstemmed |
Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River |
title_sort |
seasonal fluxes and source variation of organic carbon transported by two major chinese rivers: the yellow river and changjiang (yangtze) river |
publishDate |
2012 |
url |
http://ir.qdio.ac.cn/handle/337002/12439 https://doi.org/10.1029/2011GB004130 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean North Atlantic |
genre_facet |
Arctic Arctic Ocean North Atlantic |
op_relation |
GLOBAL BIOGEOCHEMICAL CYCLES Wang, Xuchen; Ma, Haiqing; Li, Ronghua; Song, Zhensu; Wu, Jinping.Seasonal fluxes and source variation of organic carbon transported by two major Chinese Rivers: The Yellow River and Changjiang (Yangtze) River,GLOBAL BIOGEOCHEMICAL CYCLES,2012,26():GB2025 http://ir.qdio.ac.cn/handle/337002/12439 doi:10.1029/2011GB004130 |
op_doi |
https://doi.org/10.1029/2011GB004130 |
container_title |
Global Biogeochemical Cycles |
container_volume |
26 |
container_issue |
2 |
container_start_page |
n/a |
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n/a |
_version_ |
1766347691085791232 |