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Jiao, N.; Robinson, C.; Azam, F.; Thomas, H.; Baltar, F.; Dang, H.; Hardman-mountford, N. J.; Johnson, M.; Kirchman, D. L.; Koch, B. P.; Legendre, L.; Li, C.; Liu, J.; Luo, T.; Luo, Y. -w.; Mitra, A.; Romanou, A.; Tang, K.; Wang, X.; Zhang, C.; Zhang, R.. |
This paper reviews progress on understanding biological carbon sequestration in the ocean with special reference to the microbial formation and transformation of recalcitrant dissolved organic carbon (RDOC), the microbial carbon pump (MCP). We propose that RDOC is a concept with a wide continuum of recalcitrance. Most RDOC compounds maintain their levels of recalcitrance only in a specific environmental context (RDOCt). The ocean RDOC pool also contains compounds that may be inaccessible to microbes due to their extremely low concentration (RDOCc). This differentiation allows us to appreciate the linkage between microbial source and RDOC composition on a range of temporal and spatial scales. Analyses of biomarkers and isotopic records show intensive MCP... |
Tipo: Text |
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Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00239/35040/33575.pdf |
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