Title: Soil and porewater chemistry from peatlands of the Interior Plains, northwestern Canada
Citation: Thompson, L.M., Olefeldt, D., Mangel, V., & Knorr, K.H. (2022). Soil and porewater chemistry from peatlands of the Interior Plains, northwestern Canada. University of Alberta Education & Research Archive. https://doi.org/10.7939/r3-vp5e-aj53
Study Site: Interior Plains, northwestern Canada
Purpose: We collected shallow groundwater samples from three locations per wetland by hand or with a peristaltic pump with Teflon tubing. A 10×10 cm section of soil from a microtopographic hollow was removed to ~20 cm depth and allowed to fill with water and settle from disturbance for ≥1 hour. At each subsite, we collected soil cores from a microtopographic hollow with 5 cm diameter Lexan core tubes to a depth of 12 cm. We sampled adjacent hollows from which water samples were collected to ensure the presence of representative porewater. Three separate cores for soil chemistry analysis and microbial composition were combined at 2 cm intervals into sterile Ziplock bags, homogenized, and frozen at -20°C in the field.
Abstract: The xlsx files contain one "ReadMe" tab and one "Data" tab regarding the chemistry of peatland soils or porewater. The "ReadMe" tab details the variable name, units, description, citation (optional), laboratory, and vocabulary terms. The "Data" tab contains data collected from twelve wetlands across the Interior Plains of northwestern Canada in July 2021.
Supplemental Information Summary:
Research:
Further Info: Lauren M. Thompson, Renae Shewan, Vaughn Mangal, Lorna I. Harris, Chi Him Cheng, Lucas P. P. Braga, Olesya Kolmakova, Andrew J. Tanentzap, Klaus H. Knorr, McKenzie A. Kuhn, Charlotte Haugk, Alyssa Azaroff, Sofi Jonsson, Vincent L. St. Louis, Igor Lehnherr, William L. Quinton, Oliver Sonnentag, David Olefeldt; Production of Methylmercury in Peatlands Following Permafrost Thaw Increases along a Trophic Gradient. Environ. Sci. Technol. 16 September 2025; 59 (36): 19457–19467. https://doi.org/10.1021/acs.est.5c04510
Status: Complete
Keywords:
peat properties,
wildlife,
water quality,
metals,
permafrost,
Geographical coordinates: North: 68.88, South: 56.04 East: -112.67 West: -136.32
Bounding Temporal Extent: Start Date: 2021-07-01, End
Date: 2021-07-31
