Journal article
The relationships between termite mound CH4/CO2 emissions and internal concentration ratios are species specific
H Jamali, SJ Livesley, LB Hutley, B Fest, SK Arndt
Biogeosciences | COPERNICUS GESELLSCHAFT MBH | Published : 2013
Abstract
We investigated the relative importance of CH4 and CO 2 fluxes from soil and termite mounds at four different sites in the tropical savannas of northern Australia near Darwin and assessed different methods to indirectly predict CH4 fluxes based on CO2 fluxes and internal gas concentrations. The annual flux from termite mounds and surrounding soil was dominated by CO2 with large variations among sites. On a carbon dioxide equivalent (CO2-e) basis, annual CH 4 flux estimates from termite mounds were 5- to 46-fold smaller than the concurrent annual CO2 flux estimates. Differences between annual soil CO2 and soil CH4 (CO2-e) fluxes were even greater, soil CO2 fluxes being almost three orders of ..
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Awarded by Australian Research Council
Funding Acknowledgements
The study was funded by the AusAID and the Australian Research Council Linkage Project LP0774812. We are thankful to Gus Wanganeen, Tracey Dawes, Garry Cook and other staff at CSIRO, Darwin, for their support throughout this study. We are also thankful to Donna Giltrap of Landcare Research, New Zealand, for her constructive comments on the manuscript. We would also like to thank many students who helped us in field data collection during this study. We are thankful to two anonymous reviewers whose comments were very useful in improving the quality of this paper.