Authors:
Nicholas T. Girkin, Nick Ostle, Benjamin L. Turner and Sofie Sjogersten
Book:
Proceedings of the 15th International Peat Congress
Venue:
Kuching
Keywords:
methane, root-exudates, tropical, wetland
Documentfile:
ipc16p307-311a123girkinostle.etal_.pdf
Summary:
SUMMARY
Plant root exudates represent a large, labile carbon (C) input to tropical peatlands, but their contribution to methane (CH4) and carbon dioxide (CO2) emissions remain poorly understood. Peat under two contrasting vegetation types, the palm Raphia taedigera and the broadleaf evergreen tree Campnosperma panamensis, from a coastal peatland in Panama, were incubated anaerobically and received daily C additions for two weeks. C was added as a combination of three sugars or four organic acids, with the effects on CH4 and CO2 production measured over 40 days…