Anaerobic oxidation of methane in grassland soils used for cattle husbandry

0381644 - BC 2013 RIV DE eng J - Journal Article
Bannert, A. - Bogen, C. - Esperschütz, J. - Koubová, Anna - Buegger, F. - Fischer, D. - Radl, V. - Fuss, R. - Chroňáková, Alica - Elhottová, Dana - Šimek, Miloslav - Schloter, M.
Anaerobic oxidation of methane in grassland soils used for cattle husbandry.
Biogeosciences. Roč. 9, č. 10 (2012), s. 3891-3899. ISSN 1726-4170. E-ISSN 1726-4189
R&D Projects: GA ČR GA526/09/1570
Institutional support: RVO:60077344
Keywords : anaerobic oxidation of methane * grassland soils * cattle husbandry
Subject RIV: EH - Ecology, Behaviour
Impact factor: 3.754, year: 2012

While the importance of anaerobic methane oxidation has been reported for marine ecosystems, the role of this process in soils is still questionable. Grasslands used as pastures for cattle overwintering show an increase in anaerobic soil micro-sites caused by animal treading and excrement deposition. Therefore, anaerobic potential methane oxidation activity of severely impacted soil from a cattle winter pasture was investigated in an incubation experiment under anaerobic conditions using ¹³C-labelled methane. We were able to detect a high microbial activity utilizing CH₄ as nutrient source shown by the respiration of ¹³CO₂. Measurements of possible terminal electron acceptors for anaerobic oxidation of methane were carried out. Soil sulfate concentrations were too low to explain the oxidation of the amount of methane added, but enough nitrate and iron(III) were detected. However, only nitrate was consumed during the experiment.
Permanent Link: http://hdl.handle.net/11104/0212064