Articles | Volume 11, issue 1
https://doi.org/10.5194/soil-11-309-2025
https://doi.org/10.5194/soil-11-309-2025
Short communication
 | 
09 Apr 2025
Short communication |  | 09 Apr 2025

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

Eunji Byun, Fereidoun Rezanezhad, Stephanie Slowinski, Christina Lam, Saraswati Bhusal, Stephanie Wright, William L. Quinton, Kara L. Webster, and Philippe Van Cappellen

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Cited articles

Ackley, C., Tank, S. E., Haynes, K. M., Rezanezhad, F., McCarter, C., and Quinton, W. L.: Coupled hydrological and geochemical impacts of wildfire in peatland-dominated regions of discontinuous permafrost, Sci. Total Environ., 782, 146841, https://doi.org/10.1016/j.scitotenv.2021.146841, 2021. 
Amador, J. A. and Jones, R. D.: Nutrient limitations on microbial respiration in peat soils with different total phosphorus content, Soil Biol. Biochem., 25, 793–801, https://doi.org/0.1016/0038-0717(93)90125-U, 1993. 
Aspila, K. I., Agemian, H., and Chau, A. S.: A semi-automated method for the determination of inorganic, organic and total phosphate in sediments, Analyst, 101, 187–197, https://doi.org/10.1039/an9760100187, 1976. 
Bona, K. A., Shaw, C., Thompson, D. K., Hararuk, O., Webster, K., Zhang, G., Voicu, M., and Kurz, W. A.: The Canadian model for peatlands (CaMP): A peatland carbon model for national greenhouse gas reporting, Ecol. Model., 431, 109164, https://doi.org/10.1016/j.ecolmodel.2020.109164, 2020. 
Brookes, P. C., Powlson, D. S., and Jenkinson, D. S.: Phosphorus in the soil microbial biomass, Soil Biol. Biochem., 16, 169–175, https://doi.org/10.1016/0038-0717(84)90108-1, 1984. 
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Short summary
To investigate how added nutrient nitrogen (N) and phosphorus (P) affect subarctic peatlands, we sampled peat soils from bog and fen type peatlands in the Northwest Territories, Canada, and measured CO2 and CH4 production rates by means of laboratory incubations. Our short-term experiments show that changes in nutrient concentrations in soil water can significantly affect microbial carbon cycling, suggesting the necessity of additional considerations of wildfire and permafrost thaw impacts on peatland carbon storage.
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