High Temporal and Spatial Variability of Atmospheric-Methane Oxidation in Alpine Glacier Forefield Soils
Eleonora Chiri, Philipp A Nauer, Edda-Marie Rainer, Josef Zeyer, Martin H Schroth
Applied and Environmental Microbiology | AMER SOC MICROBIOLOGY | Published : 2017
Glacier forefield soils can provide a substantial sink for atmospheric CH4, facilitated by aerobic methane-oxidizing bacteria (MOB). However, MOB activity, abundance, and community structure may be affected by soil age, MOB location in different forefield landforms, and temporal fluctuations in soil physical parameters. We assessed the spatial and temporal variability of atmospheric-CH4 oxidation in an Alpine glacier forefield during the snow-free season of 2013. We quantified CH4 flux in soils of increasing age and in different landforms (sandhill, terrace, and floodplain forms) by using soil gas profile and static flux chamber methods. To determine MOB abundance and community structure, we..View full abstract
Awarded by Swiss National Science Foundation
This study was funded by the Swiss National Science Foundation (grant 200021-13772); additional financial support was provided by ETH Zurich.