Biology and Fertility of Soils

, Volume 38, Issue 5, pp 267–272 | Cite as

Carbon limitations to nitrous oxide emissions in a humid tropical forest of the Brazilian Amazon

  • D. C. Garcia-Montiel
  • J. M. Melillo
  • P. A. Steudler
  • C. C. Cerri
  • M. C. Piccolo
Review Article

Abstract

The availability of labile organic C for microbial metabolic processes could be an important factor regulating N2O emissions from tropical soils. We explored the effects of labile C on the emissions of N2O from a forest soil in the State of Rondônia in the southwestern quadrant of the Brazilian Amazon. We measured emissions of N2O from a forest soil after amendments with solutions containing glucose, water only or NO3. Addition of glucose to the forest soil resulted in very large increases in N2O emissions whereas the water only and NO3 additions did not. These results suggest a strong C limitation on N2O production in this forest soil in the southwestern Amazon.

Keywords

Nitrous oxide emission Labile organic carbon Tropical soils Forest soils Microbial denitrification 

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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • D. C. Garcia-Montiel
    • 1
  • J. M. Melillo
    • 2
  • P. A. Steudler
    • 2
  • C. C. Cerri
    • 3
  • M. C. Piccolo
    • 3
  1. 1.The Woods Hole Research CenterWoods HoleUSA
  2. 2.The Ecosystems CenterMarine Biological Laboratory Woods HoleWoods HoleUSA
  3. 3.Centro de Energia Nuclear na AgriculturaUniversity of São PauloPiracicabaBrazil

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