Global carbon sequestration through continental chemical weathering in a climatic change context

Autor: Lechuga-Crespo, Juan Luis, Sauvage, Sabine, Ruiz-Romera, Estilita, van Vliet, Michelle T.H., Probst, Jean Luc, Fabre, Clément, Sánchez-Pérez, José Miguel, Hydrologie
Přispěvatelé: Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Swiss Federal Institute of Aquatic Science and Technology - EAWAG (SWITZERLAND), University of the Basque Country - UPV/EHU (SPAIN), Utrecht University - UU (NETHERLANDS), Laboratoire Ecologie fonctionnelle et Environnement - EcoLab (Toulouse, France), University of the Basque Country/Euskal Herriko Unibertsitatea (UPV/EHU), Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Utrecht University [Utrecht], Swiss Federal institute of aquatic science and technology, Hydrologie
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scientific Reports
Scientific Reports, 2021, 11 (1), pp.1-8. ⟨10.1038/s41598-021-02891-y⟩
Scientific Reports, 2021, 11 (1), pp.23588. ⟨10.1038/s41598-021-02891-y⟩
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Scientific Reports, 11(1), 1. NLM (Medline)
ISSN: 2045-2322
DOI: 10.1038/s41598-021-02891-y⟩
Popis: This study simulates carbon dioxide (CO2) sequestration in 300 major world river basins (about 70% of global surface area) through carbonates dissolution and silicate hydrolysis. For each river basin, the daily timescale impacts under the RCP 2.6 and RCP 8.5 climate scenarios were assessed relative to a historical baseline (1969–1999) using a cascade of models accounting for the hydrological evolution under climate change scenarios. Here we show that the global temporal evolution of the CO2 uptake presents a general increase in the annual amount of CO2 consumed from 0.247 ± 0.045 Pg C year−1 to 0.261 and 0.273 ± 0.054 Pg C year−1, respectively for RCP 2.6 and RCP 8.5. Despite showing a general increase in the global daily carbon sequestration, both climate scenarios show a decrease between June and August. Such projected changes have been mapped and evaluated against changes in hydrology, identifying hot spots and moments for the annual and seasonal periods.
Databáze: OpenAIRE
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