Climatic Change

, Volume 66, Issue 1, pp 9–21

Greenhouse Gas Emissions from Hydroelectric Reservoirs in Tropical Regions

  • Luiz Pinguelli Rosa
  • Marco Aurelio dos Santos
  • Bohdan Matvienko
  • Ednaldo Oliveira dos Santos
  • Elizabeth Sikar
Article

DOI: 10.1023/B:CLIM.0000043158.52222.ee

Cite this article as:
Rosa, L.P., dos Santos, M.A., Matvienko, B. et al. Climatic Change (2004) 66: 9. doi:10.1023/B:CLIM.0000043158.52222.ee

Abstract

This paper discusses emissions by power-dams in the tropics. Greenhouse gas emissions from tropical power-dams are produced underwater through biomass decomposition by bacteria. The gases produced in these dams are mainly nitrogen, carbon dioxide and methane. A methodology was established for measuring greenhouse gases emitted by various power-dams in Brazil. Experimental measurements of gas emissions by dams were made to determine accurately their emissions of methane (CH4) and carbon dioxide (CO2) gases through bubbles formed on the lake bottom by decomposing organic matter, as well as rising up the lake gradient by molecular diffusion.The main source of gas in power-dams reservoirs is the bacterial decomposition (aerobic and anaerobic) of autochthonous and allochthonous organic matter that basically produces CO2 and CH4. The types and modes of gas production and release in the tropics are reviewed.

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Luiz Pinguelli Rosa
    • 1
    • 2
  • Marco Aurelio dos Santos
    • 1
    • 2
  • Bohdan Matvienko
    • 2
  • Ednaldo Oliveira dos Santos
    • 1
  • Elizabeth Sikar
    • 3
  1. 1.IVIG/COPPE/UFRJ, Centro de TecnologiaCidade universitáriaRio de JaneiroBrazil
  2. 2.Hydraulics DepartmentUniversity of São PauloSão Carlos SPBrazil
  3. 3.Construmaq, C.P. 717São Carlos SPBrazil

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