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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

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Dissolved black carbon is not likely a significant refractory organic carbon pool in rivers and oceans Qi, Y.; Fu, W.; Tian, J.; Luo, C.; Shan, S.; Sun, S.; Ren, P.; Zhang, H.; Liu, J.; Zhang, X.; Wang, X. (2020). Dissolved black carbon is not likely a significant refractory organic carbon pool in rivers and oceans. Nature Comm. 11(1): 11 pp. https://dx.doi.org/10.1038/s41467-020-18808-8 In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, meer Is gerelateerd aan: Qi, Y.; Fu, W.; Tian, J.; Luo, C.; Shan, S.; Sun, S.; Ren, P.; Zhang, H.; Liu, J.; Zhang, X.; Wang, X. (2021). Reply to: “Questions remain about the biolability of dissolved black carbon along the combustion continuum”. Nature Comm. 12(1): 4282. https://dx.doi.org/10.1038/s41467-021-24478-x, meer

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Beschikbaar in	Auteurs
VLIZ: Open access 352428 [ download pdf ]

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Qi, Y. Fu, W. Tian, J. Luo, C.	Shan, S. Sun, S. Ren, P., meer Zhang, H.	Liu, J. Zhang, X. Wang, X.

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Abstract

Rivers are the major carriers of dissolved black carbon (DBC) from land to ocean; the sources of DBC during its continuous transformation and cycling in the ocean, however, are not well characterized. Here, we present new carbon isotope data for DBC in four large and two small mountainous rivers, the Yangtze and Yellow river estuaries, the East China Sea and the North Pacific Ocean. We found that the carbon isotope signatures of DBC are relatively homogeneous, and the DBC 14C ages in rivers are predominantly young and increase during continuous transport and cycling in the ocean. The results of charcoal leaching experiments indicate that DBC is released from charcoal and degraded by bacteria. Our study suggests that riverine DBC is labile and respired during transport and mixing into the ocean and that residual DBC is cycled and aged on the same time scales as bulk DOC in the ocean.

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