TY  - JOUR
A1  - Günthel, Marco
A1  - Donis, Daphne
A1  - Kirillin, Georgiy
A1  - Ionescu, Danny
A1  - Bizic, Mina
A1  - McGinnis, Daniel F.
A1  - Grossart, Hans-Peter
A1  - Tang, Kam W.
T1  - Contribution of oxic methane production to surface methane emission in lakes and its global importance
T2  - Nature Communications
N2  - Recent discovery of oxic methane production in sea and lake waters, as well as wetlands, demands re-thinking of the global methane cycle and re-assessment of the contribution of oxic waters to atmospheric methane emission. Here we analysed system-wide sources and sinks of surface-water methane in a temperate lake. Using a mass balance analysis, we show that internal methane production in well-oxygenated surface water is an important source for surface-water methane during the stratified period. Combining our results and literature reports, oxic methane contribution to emission follows a predictive function of littoral sediment area and surface mixed layer volume. The contribution of oxic methane source(s) is predicted to increase with lake size, accounting for the majority (>50%) of surface methane emission for lakes with surface areas >1 km(2).
Y1  - 2019
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/47671
SN  - 2041-1723
VL  - 10
PB  - Nature Publishing Group UK
CY  - London
ER  -