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Plant and Soil

, Volume 309, Issue 1–2, pp 1–4 | Cite as

Nitrous oxide and methane flux in Australian and New Zealand landscapes: measurements, modeling and mitigation

  • S. J. Livesley
  • R. Eckard
  • S. K. Arndt
Editorial
  • 149 Downloads

Nitrous oxide (N2O) and methane (CH4) represent around 25% of the increased radiative forcing in the earth’s atmosphere (Houghton et al. 2001). This may be half that represented by carbon dioxide (~50%), but nevertheless important enough to demand greater research into the sinks and sources of CH4 and N2O, the biogeochemical processes and factors involved, and ultimately to explore the management options available to mitigate emissions and enhance the sinks. Unlike carbon dioxide, the vast majority of the increase in the atmospheric concentrations of N2O and CH4 has been mediated by processes that occur naturally; in soils, sediments or animals within the landscape. N2O emissions are principally a product of microbial nitrification and denitrification in the soil (Firestone and Davidson 1989), whilst CH4 may be produced by methanogenic bacteria under anaerobic, anoxic conditions in the soils and sediments (Conrad 1996) and in the course of enteric fermentation by ruminant animals and...

Notes

Acknowledgements

The ‘Non-CO2 greenhouse gas fluxes in Australian-New Zealand landscapes’ Research Forum convened by The University of Melbourne on 15–16 May 2007 is the third joint ‘non-CO2’ forum arranged in response to the bilateral Agriculture and Greenhouse Partnership agreement. The first ‘non-CO2’ forum was held in Christchurch (February 2003) and the second in Melbourne (October 2005). The conference organisers would like to acknowledge the high standard of presentation during the forum and poster sessions, and thank all those who attended for making the forum an event of vibrant question and discussion. The organisers would like to thank the Department of Sustainability and Environment of Victoria, the Department of Primary Industries of Victoria, The Australian Greenhouse Office, The University of Melbourne and Melbourne Zoo for support in organising the Research Forum, and specifically Edith Huber, Emma Cleveland and Peter Miehle for technical assistance.

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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.School of Forest and Ecosystem ScienceThe University of MelbourneMelbourneAustralia
  2. 2.Department of Primary IndustriesEllinbankAustralia

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