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Greenhouse gas emissions from African lakes are no longer a blind spot.
Borges, Alberto V; Deirmendjian, Loris; Bouillon, Steven; Okello, William; Lambert, Thibault; Roland, Fleur A E; Razanamahandry, Vao F; Voarintsoa, Ny Riavo G; Darchambeau, François; Kimirei, Ismael A; Descy, Jean-Pierre; Allen, George H; Morana, Cédric.
Afiliación
  • Borges AV; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
  • Deirmendjian L; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
  • Bouillon S; Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium.
  • Okello W; Department of Limnology, National Fisheries Resource Research Institute, Jinja, Uganda.
  • Lambert T; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
  • Roland FAE; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
  • Razanamahandry VF; Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium.
  • Voarintsoa NRG; Department of Earth and Environmental Sciences, KU Leuven, Leuven, Belgium.
  • Darchambeau F; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
  • Kimirei IA; Tanzania Fisheries Research Institute, Dar es Salaam, Tanzania.
  • Descy JP; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
  • Allen GH; Department of Geography, Texas A&M University, College Station, TX, USA.
  • Morana C; Chemical Oceanography Unit, University of Liège, Liège, Belgium.
Sci Adv ; 8(25): eabi8716, 2022 Jun 24.
Article en En | MEDLINE | ID: mdl-35749499
Natural lakes are thought to be globally important sources of greenhouse gases (CO2, CH4, and N2O) to the atmosphere although nearly no data have been previously reported from Africa. We collected CO2, CH4, and N2O data in 24 African lakes that accounted for 49% of total lacustrine surface area of the African continent and covered a wide range of morphology and productivity. The surface water concentrations of dissolved CO2 were much lower than values attributed in current literature to tropical lakes and lower than in boreal systems because of a higher productivity. In contrast, surface water-dissolved CH4 concentrations were generally higher than in boreal systems. The lowest CO2 and the highest CH4 concentrations were observed in the more shallow and productive lakes. Emissions of CO2 may likely have been substantially overestimated by a factor between 9 and 18 in African lakes and between 6 and 26 in pan-tropical lakes.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2022 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2022 Tipo del documento: Article País de afiliación: Bélgica Pais de publicación: Estados Unidos