Contrasting potential for biological N2 fixation at three polluted central European Sphagnum peat bogs: combining the 15N2-tracer and natural-abundance isotope approaches
Department of Environmental Geochemistry and Biogeochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
Ivana Jackova
Department of Environmental Geochemistry and Biogeochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
Frantisek Buzek
Department of Environmental Geochemistry and Biogeochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
Frantisek Veselovsky
Department of Rock Geochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
Jan Curik
Department of Environmental Geochemistry and Biogeochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
Eva Prechova
Department of Environmental Geochemistry and Biogeochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
Arnost Komarek
Department of Probability and Mathematic Statistics, Faculty of Mathematics and Physics, Charles University, Sokolovska 83, 186 75 Prague 8, Czech Republic
Leona Bohdalkova
Department of Environmental Geochemistry and Biogeochemistry, Czech Geological Survey, Geologicka 6, 152 00 Prague 5, Czech Republic
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Total article views: 1,717 (including HTML, PDF, and XML)
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Biological N2 fixation helps to sustain carbon accumulation in peatlands and to remove CO2 from the atmosphere. Changes in N2 fixation may affect the dynamics of global change. Increasing inputs of reactive N from air pollution should lead to downregulation of N2 fixation. Data from three N-polluted peat bogs show an interplay of N2-fixation rates with 10 potential drivers of this process. N2 fixation was measurable only at one site characterized by high phosphorus and low sulfate availability.
Biological N2 fixation helps to sustain carbon accumulation in peatlands and to remove CO2 from...
