caa a22 4500 475827929 CHVBK 20180406123833.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/s005310050290 doi (NATIONALLICENCE)springer-10.1007/s005310050290 Transport of terrestrial organic carbon to the oceans by rivers: re-estimating flux- and burial rates [Elektronische Daten] [B. Schlünz, R. R. Schneider]  This study re-estimates one important component in the global carbon cycle: the modern global fluviatile organic carbon discharge- and burial rates. According to these results, approximately 430×1012 g of terrestrial organic carbon are transported to the ocean in modern times. This amount is higher than the latest estimates but takes into account new data from Oceania not previously considered in global flux studies. However, only the minor amount of 10% or approximately 43×1012 gC year-1 is most likely buried in marine sediments. This amount is similar to the burial of marine organic carbon in the coastal ocean (55×1012 gC year-1). Adding both estimates gives approximately 100×1012 gC year-1, which is the value calculated by Berner (1982) for "terrestrial" deltaic-shelf sediments. However, the results in this study suggest that on a global scale the organic carbon content in coastal ocean sediments is not solely of terrestrial origin but a mixture of nearly equal amounts of marine and terrestrial organic carbon. The major part of the terrestrial organic carbon that enters the ocean by rivers (approximately 400×1012 gC year-1) seems to be either (a) remineralised in the ocean, whereas the mechanism by which the terrestrial organic carbon is oxidised in the ocean are unknown; or (b) is dispersed throughout the oceans and accumulates in pelagic sediments. Springer-Verlag Berlin Heidelberg, 2000 Key words Carbon cycle nationallicence Terrestrial organic carbon nationallicence Fluvial organic carbon discharge nationallicence Organic carbon burial rate nationallicence Organic carbon budget nationallicence Schlünz B. Universität Bremen, Fachbereich Geowissenschaften, Postfach 330 440, D-28334 Bremen, Germany Tel.: +49-421-2187394, Fax: +49-421-218 3116 E-mail: schluenz@allgeo.uni-bremen.de, DE aut Schneider R. R. Universität Bremen, Fachbereich Geowissenschaften, Postfach 330 440, D-28334 Bremen, Germany Tel.: +49-421-2187394, Fax: +49-421-218 3116 E-mail: schluenz@allgeo.uni-bremen.de, DE aut https://doi.org/10.1007/s005310050290 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005310050290 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schlünz B. Universität Bremen, Fachbereich Geowissenschaften, Postfach 330 440, D-28334 Bremen, Germany Tel.: +49-421-2187394, Fax: +49-421-218 3116 E-mail: schluenz@allgeo.uni-bremen.de, DE aut NATIONALLICENCE 700 1- Schneider R. R. Universität Bremen, Fachbereich Geowissenschaften, Postfach 330 440, D-28334 Bremen, Germany Tel.: +49-421-2187394, Fax: +49-421-218 3116 E-mail: schluenz@allgeo.uni-bremen.de, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer