Methane Metabolism in a Temperate Swamp

Hydrogeomorphic controls on runoff in a temperate swamp

Hydrogeomorphic controls on runoff in a temperate swamp S. C. Kaufman, J. M. Waddington, and B. A. Branfireun McMaster University, School of Geography and Geology, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada University of Toronto at Mississauga, Department of Geography, 3359 Mississauga Road North, Mississauga, Ontario L5L 1C6, Canada Received: 7 March 2005 – Accepted: 16 March 200...

Dynamics of methane production, sulfate reduction, and denitrification in a permanently waterlogged alder swamp.

The dynamics of sulfate reduction, methane production, and denitrification were investigated in a permanently waterlogged alder swamp. Molybdate, an inhibitor of sulfate reduction, stimulated methane production in soil slurries, thus suggesting competition for common substrates between sulfate-reducing and methane-producing bacteria. Acetate, hydrogen, and methanol were found to stimulate both ...

High-frequency measurements of methane ebullition over a growing season at a temperate peatland site

A synthesis of methane emissions from 71 northern, temperate, and subtropical wetlands.

Wetlands are the largest natural source of atmospheric methane. Here, we assess controls on methane flux using a database of approximately 19 000 instantaneous measurements from 71 wetland sites located across subtropical, temperate, and northern high latitude regions. Our analyses confirm general controls on wetland methane emissions from soil temperature, water table, and vegetation, but also...

Interannual, seasonal, and retrospective analysis of the methane and carbon dioxide budgets of a temperate peatland

[1] Three years (2009–2011) of near-continuous methane (CH4) and carbon dioxide (CO2) fluxes were measured with the eddy covariance (EC) technique at a temperate peatland located within the Marcell Experimental Forest, in northern Minnesota, USA. The peatland was a net source of CH4 and a net sink of CO2 in each year with annual carbon budgets of 26.8 ( 18.7), 15.5 ( 14.8), and 14.6 ( 21.5) g C...