Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/37743
Título: Carbon and Beyond: The Biogeochemistry of Climate in a Rapidly Changing Amazon
Autor: Covey, Kristofer R.
Soper, Fiona M.
Pangala, Sunitha R.
Bernardino, Angelo Fraga
Pagliaro, Zoe
Basso, Luana S.
Cassol, Henrique Luís Godinho
Fearnside, Philip Martin
Navarrete, Diego
Novoa, Sidney
Sawakuchi, H. O.
Lovejoy, Thomas E.
Marengo, José António
Peres, Carlos A.
Baillie, Jonathan E.M.
Bernasconi, Paula
Camargo, José Luís Campana
Freitas, Carolina Tavares
Hoffman, Bruce
Nardoto, G. B.
Nobre, Ismael
Mayorga, Juan
Mesquita, Rita De Cássia Guimarães
Pavan, Silvia Eliza
Pinto, Flavia
Rocha, Flavia
de Assis Mello, Ricardo
Thuault, Alice
Bahl, Alexis Anne
Elmore, Aurora C.
Data do documento: 2021
Revista: Frontiers in Forests and Global Change
É parte de: Volume 4
Abstract: The Amazon Basin is at the center of an intensifying discourse about deforestation, land-use, and global change. To date, climate research in the Basin has overwhelmingly focused on the cycling and storage of carbon (C) and its implications for global climate. Missing, however, is a more comprehensive consideration of other significant biophysical climate feedbacks [i.e., CH4, N2O, black carbon, biogenic volatile organic compounds (BVOCs), aerosols, evapotranspiration, and albedo] and their dynamic responses to both localized (fire, land-use change, infrastructure development, and storms) and global (warming, drying, and some related to El Niño or to warming in the tropical Atlantic) changes. Here, we synthesize the current understanding of (1) sources and fluxes of all major forcing agents, (2) the demonstrated or expected impact of global and local changes on each agent, and (3) the nature, extent, and drivers of anthropogenic change in the Basin. We highlight the large uncertainty in flux magnitude and responses, and their corresponding direct and indirect effects on the regional and global climate system. Despite uncertainty in their responses to change, we conclude that current warming from non-CO2 agents (especially CH4 and N2O) in the Amazon Basin largely offsets—and most likely exceeds—the climate service provided by atmospheric CO2 uptake. We also find that the majority of anthropogenic impacts act to increase the radiative forcing potential of the Basin. Given the large contribution of less-recognized agents (e.g., Amazonian trees alone emit ~3.5% of all global CH4), a continuing focus on a single metric (i.e., C uptake and storage) is incompatible with genuine efforts to understand and manage the biogeochemistry of climate in a rapidly changing Amazon Basin. © Copyright © 2021 Covey, Soper, Pangala, Bernardino, Pagliaro, Basso, Cassol, Fearnside, Navarrete, Novoa, Sawakuchi, Lovejoy, Marengo, Peres, Baillie, Bernasconi, Camargo, Freitas, Hoffman, Nardoto, Nobre, Mayorga, Mesquita, Pavan, Pinto, Rocha, de Assis Mello, Thuault, Bahl and Elmore.
DOI: 10.3389/ffgc.2021.618401
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