Effects of land-use on the activity and diversity of methane oxidizing bacteria in forest soils |
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| Institution: | 1. Department of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, UK;2. Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK;3. Centre for Ecology and Hydrology, Merlewood Research Station, Grange over Sands, Windermere Road, Cumbria LA11 6JU, UK;1. Department of Forest Sciences, University of Helsinki, P.O. Box 27, FI-00014 Helsinki, Finland;2. V. N. Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences, Russian Federation;3. Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland;1. Wondo Genet College of Forestry and Natural Resources, Hawassa University, PO Box 128, Shashemene, Ethiopia;2. Landcare Research, Private Bag 11052, Palmerston North 4442, New Zealand;1. Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences (CAS), Wuhan 430074, PR China;2. Graduate University of Chinese Academy of Sciences, Beijing, 10039, PR China;3. School of Ecology and Environmental Sciences, Yunnan University, Kunming 650091, PR China;1. Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;2. National Engineering Research Center for Information Technology in Agriculture, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;3. University of Chinese Academy of Sciences, Beijing 101408, China;4. Harrow Research and Development Center, Agriculture & Agri-Food Canada, Harrow, Ontario N0R 1G0, Canada;1. UMR 1137, Ecologie et Ecophysiologie Forestières, Université de Lorraine, INRA, Faculté des Sciences et Technologies, F-54506 Vandoeuvre-les-Nancy cedex, France;2. UR 1138 Biogéochimie des Ecosystèmes Forestiers, INRA, F-54280 Champenoux, France;3. URSOLS, INRA, 45075 Orléans, France;1. Karlsruhe Institute of Technology KIT, Institute of Meteorology and Climate Research IMK-IFU, Kreuzeckbahnstrasse 19, 82467 Garmisch-Partenkirchen, Germany;2. Technical University of Munich, Chair of Atmospheric Environmental Research, Hans-Carl-von-Carlowitz-Platz 2/I, 85354 Freising, Germany;3. University of Applied Sciences Weihenstephan-Triesdorf, Chair of Vegetation-Ecology, Weihenstephaner Berg 4, 85354 Freising, Germany |
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| Abstract: | Methane is an important greenhouse gas and CH4 oxidation in soil represents a significant sink for this gas. High capacity CH4 oxidation potentials and molecular profiles of CH4 oxidizing bacteria in soil were compared for five land-use treatments at a fully replicated experimental site within the Gisburn Forest Experiment, to assess the effects of land-use on both the potential activity of CH4 oxidizing bacteria and their diversity. Forestry land-use was found to have a highly significant effect on CH4 oxidation potentials. Highest CH4 oxidation potentials were found in soils collected under stands of oak, in grassland plots, and in one soil under Norway spruce. A negative relationship between soil water nitrate concentration and CH4 oxidation capacity was evident across the experimental site, with the high nitrate soils under stands of alder exhibiting little or no capacity for CH4 oxidation even at optimal temperature and water content. Molecular profiles indicated that a diverse range of bacteria with the potential to oxidize CH4 were present in all soils, however no clear correlation with CH4 oxidation potential was identified. |
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