Journal article

Changes in soil moisture drive soil methane uptake along a fire regeneration chronosequence in a eucalypt forest landscape

Benedikt Fest, Tim Wardlaw, Stephen J Livesley, Thomas J Duff, Stefan K Arndt

GLOBAL CHANGE BIOLOGY | WILEY-BLACKWELL | Published : 2015

Abstract

Disturbance associated with severe wildfires (WF) and WF simulating harvest operations can potentially alter soil methane (CH4 ) oxidation in well-aerated forest soils due to the effect on soil properties linked to diffusivity, methanotrophic activity or changes in methanotrophic bacterial community structure. However, changes in soil CH4 flux related to such disturbances are still rarely studied even though WF frequency is predicted to increase as a consequence of global climate change. We measured in-situ soil-atmosphere CH4 exchange along a wet sclerophyll eucalypt forest regeneration chronosequence in Tasmania, Australia, where the time since the last severe fire or harvesting disturbanc..

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Grants

Awarded by Australian Research Council (ARC)


Funding Acknowledgements

The study was supported by funding from the Terrestrial Ecosystem Research Network (TERN) Australian Supersite Network, the TERN OzFlux Network, the Australian Research Council (ARC) grants LE0882936 and DP120101735, and Forestry Tasmania. A special thank you goes to Catherine Nield-Fest and Julio Najera, who helped with field data collection and in the laboratory, and Ian Gordon and Rachel Sore for their advice in statistical analyses.