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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

Tropical-cyclone-driven erosion of the terrestrial biosphere from mountains.', Nature geoscience., 1 (11). pp. 759-762.Further information on publisher's website:The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. 10 11 The transfer of organic carbon from the terrestrial biosphere to the oceans via 12 erosion and riverine transport constitutes an important component of the global 13 carbon cycle 1-4 . More than one third of this organic carbon flux comes from 14 sediment-laden rivers that drain the mountains in the western Pacific region 3,5 . This 15 region is prone to tropical cyclones, but their role in sourcing and transferring 16 vegetation and soil is not well constrained. Here we measure particulate organic 17 carbon load and composition in the LiWu River, Taiwan, during cyclone-triggered 18floods. We correct for fossil particulate organic carbon using radiocarbon, and find 19 that the concentration of particulate organic carbon fromvegetation and soils is 20 positively correlatedwith water discharge. Floods have been shown to carry large 21 amounts of clastic sediment 6 .Non-fossil particulate organic carbon transported at 22

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