2015
DOI: 10.5194/bgd-12-13931-2015
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Methane dynamics in warming tundra of Northeast European Russia

Abstract: Abstract. Methane (CH4) fluxes were investigated in a subarctic Russian tundra site in a multi-approach study combining plot scale data, ecosystem scale eddy covariance (EC) measurements and fine resolution land cover classification scheme for regional upscaling. The flux data as measured by the two independent techniques resulted in a seasonal (May–October 2008) cumulative CH4 emission of 2.4 (EC) and 3.7 g CH4 m−2 (manual chambers) for the source area representative of the footprint of the EC instruments. Up… Show more

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“…Changing climate exerts a strong control on the nature, extent and severity of glacial and periglacial processes (Tweed and Carrivick, 2015). An increase in the global mean surface temperature causes permafrost to thaw, which initiates substantial carbon and methane emissions (Wik et al, 2016) and reintroduces previously frozen stores of micro- and macronutrients into the environment of the Northern Hemisphere (IPCC, 2014; Lougheed et al, 2015; Marushchak et al, 2015; Mathijssen et al, 2014; Serov et al, 2015; Sherwood et al, 2014). Furthermore, a recent study by Legendre et al (2015) reveals the exciting finding of a pathogenic DNA virus in prehistorical permafrost layers that should be of concern in the context of global climate change (Tollefson, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…Changing climate exerts a strong control on the nature, extent and severity of glacial and periglacial processes (Tweed and Carrivick, 2015). An increase in the global mean surface temperature causes permafrost to thaw, which initiates substantial carbon and methane emissions (Wik et al, 2016) and reintroduces previously frozen stores of micro- and macronutrients into the environment of the Northern Hemisphere (IPCC, 2014; Lougheed et al, 2015; Marushchak et al, 2015; Mathijssen et al, 2014; Serov et al, 2015; Sherwood et al, 2014). Furthermore, a recent study by Legendre et al (2015) reveals the exciting finding of a pathogenic DNA virus in prehistorical permafrost layers that should be of concern in the context of global climate change (Tollefson, 2015).…”
Section: Introductionmentioning
confidence: 99%