Title: Soil microbial community response to permafrost degradation in palsa fields of the Hudson Bay Lowlands: implications for greenhouse gas production in a warming climate
Citation: Kirkwood, Adam (2021). Kirkwood_GBC_Supp-Info_Data.xlsx. figshare. Dataset. https://doi.org/10.6084/m9.figshare.14546823.v1
Study Site: Polar Bear Provincial Park, Ontario
Purpose: Permafrost thaw in northern peatlands alters the ground thermal conditions, moisture, and chemistry that control microbial activity responsible for the production of greenhouse gases (GHGs) like methane from decomposing organic matter. This paper examines interactions between microbial communities, peat chemistry, moisture content, and temperature in the context of degrading palsa fields in the vast (372,000 km2), carbon rich, and rapidly warming permafrost peatlands of the Hudson Bay Lowlands.
Abstract: The temperature sensitivities of microbial GHG production and consumption from palsa and fen peat were assessed, and microbial community structure was examined as a potential constraint on GHG production in relation to changes in peat chemistry associated with thermokarst encroachment and active layer deepening.
Supplemental Information Summary:
Research:
Further Info: Kirkwood, J. A. H., Roy-Léveillée, P., Mykytczuk, N., Packalen, M., McLaughlin, J., Laframboise, A., & Basiliko, N. (2021). Soil microbial community response to permafrost degradation in palsa fields of the Hudson Bay Lowlands: Implications for greenhouse gas production in a warming climate. Global Biogeochemical Cycles, 35, e2021GB006954. https://doi.org/10.1029/2021GB006954
Status: Complete
Keywords:
methane,
carbon dioxide,
peat properties,
vegetation,
climate change,
permafrost,
Geographical coordinates: North: 54.76, South: 54.76 East: -83.04 West: -83.04
Bounding Temporal Extent: Start Date: , End
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