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Sediment Dynamics and Morphodynamics of River-Sea Sediment Dispersal Systems through Space and Time: A Source-to-Sink Perspective
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Using ¦Ä13C and C/N to Indicate the Source and Transport Process of Particulate Organic Matter in Jiulong River Estuary, Southeast China
P-G1-04
Liangrong Zou, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
Fengling Yu* , State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
Peng Cheng, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
Nengwang Cheng, College of Ecology and Evironmental Science, Xiamen University, Xiamen, China
Tian Xia, State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
James T. Liu, Department of Oceanography, National Sun Yat-sen University
Presenter Email: fengling.yu@xmu.edu.cn |
| This study chooses Jiulong River Estuary (JRE), a typical small macro-tidal estuary located at southeast of China, as a case to explore the source and transport process of POC by the indication of ¦Ä13C values and C/N ratios. The results show that there are three major pools of organic matter can be recognized in JRE: terrestrial, riverine and marine organic materials. POC is a conservative mixture riverine and marine POC in JRE. The filter effect of ETM traps large amount of POC and deposits it. While terrestrial organic matter becomes an important origin of SOM in JRE. ¦Ä13C and C/N can indicate the influence of tide to the transport of POC in JRE, and sediment resuspension is the dominated source to settling organic matter in ETM of JRE. |
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