Title: Dataset for Examining the Effects of Nutrient Pulses on Biogeochemical Cycling in Subarctic Peatlands in the Context of Permafrost Thaw and Wildfires
Citation: Byun, E., Rezanezhad, F., Slowinski, S., Lam, C., Saraswati, S., Wright, S., Quinton, W., Webster, K., Van Cappellen, P. (2024). Dataset for Examining the Effects of Nutrient Pulses on Biogeochemical Cycling in Subarctic Peatlands in the Context of Permafrost Thaw and Wildfires. Federated Research Data Repository. https://doi.org/10.20383/102.0712
Study Site: Scotty Creek Research Station, Northwest Territories
Purpose: The main goal of this one-month experiment was to examine the immediate biogeochemical responses of subarctic peat samples to sudden nutrient additions, nitrogen (N) and phosphorus (P) in dissolved bioavailable forms (i.e., ammonium, nitrate, and phosphate).
Abstract: This dataset contains results from a laboratory soil incubation experiment for subarctic bog and fen shallow peat cores. The main data product was the set of greenhouse gas flux rates from the control and nutrient-added peat samples, including the measurements of carbon dioxide (CO2), methane (CH4), and nitrogen oxide (N2O), although the N2O results were not discussed in the associated manuscript "Examining the Effects of Nutrient Pulses on Biogeochemical Cycling in Subarctic Peatlands in the Context of Permafrost Thaw and Wildfires" (in submission, 2023) as the discussion focused on microbial carbon (C) cycling responses. Other analysis results relevant to the interpretation of C gas emission rates were included, such as porewater chemistry (i.e., concentrations of major cations and anions), peat organic matter composition (i.e., total C, N and P concentrations), and chloroform fumigation analysis (i.e., microbial biomass extraction and measurements of C, N and P concentrations).
Supplemental Information Summary: Item exited embargo and became publicly available on 2024-05-01
Research: Global Water Futures (GWF), Winter Soil Processes in Transition project, Can-Peat, ArcticNet, Dehcho Collaborative on Permafrost
Further Info:
Byun, E., Rezanezhad, F., Slowinski, S., Lam, C., Bhusal, S., Wright, S., Quinton, W. L., Webster, K. L., and Van Cappellen, P.: Effects of nitrogen and phosphorus amendments on CO2 and CH4 production in peat soils of Scotty Creek, Northwest Territories: potential considerations for wildfire and permafrost thaw impacts on peatland carbon exchanges, SOIL, 11, 309–321, https://doi.org/10.5194/soil-11-309-2025, 2025.
Status: Complete
Keywords:
carbon dioxide,
methane,
nitrous oxide,
bog,
fen,
biogeochemical,
Geographical coordinates: North: 61.30822, South: 61.30183 East: -121.298318 West: -121.301337
Bounding Temporal Extent: Start Date: 2022-04-20, End
Date: 2022-09-14
