Name
Methane Emissions in Quince Bog
Date & Time
Monday, May 25, 2026, 4:00 PM - 5:30 PM
Description
Quince Bog is a highly degraded coastal peatland that had been ditched, drained and abandoned for 30 years. This study aims to contextualize methane emissions in the degraded bog relative to the non-degraded nearby peatland complex prior to the planned restoration of Quince in 2027. We chose study sites in different environments within the bog to determine how environmental factors may affect methane flux. Mean methane flux varied among categories 0.47 nmol/s for all reference sites;12.19 nmol/s for sedge 0.08 nmol/s for grasses; 40.55 nmol/s for drainage ditches; 0.06 nmol/s for bare peat; 7.20 nmol/s for floating mats; and -0.05 nmol/s for recovered sphagnum. Although the largest fluxes were observed in the drainage ditches, sedges were also a very large source of methane. Given the high coverage of sedge, the degraded portions of Quince Bog may be a large source of methane relative to the reference bog.
To quantify the variability in methane emission, even in the presence of aerenchymas tissues (i.e. sedges). We also collected microbial samples from 10 cm below the water table, at the water table, and 10 cm above the water table. The samples were processed for metabarcoding, and the sequences of nucleotides found in the DNA will be compared to large databases of known microbial nucleotide sequences to identify abundance and composition of methanotrophic and methanogenic communities.
Location Name
McInnes Room
Full Address
Dalhousie University
Halifax NS
Canada
Halifax NS
Canada
Session Type
Poster
Abstract ID
380
Speaker Organization
St. Francis Xavier University
Session Name
B-2
Co-authors
Julia Crean: Co-author
Graham Clark: Supervisor
Presenting Author
Jaime Burns: Co-author