PANGAEA_974107 Methane and carbon dioxide production from anaerobically incubated boreal peat treated with nitrogen addenda Böhm, Marianne; Baysinger, Mackenzie; Treat, Claire C Methane and carbon dioxide production from anaerobically incubated boreal peat treated with nitrogen addenda 2025-02-27 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.974107 Investigator Marianne Böhm marianne.bohm@natgeo.su.se Earth Science Sample code/label Identification Day of experiment DATE/TIME Position Incubation temperature Treatment: nitrogen Treatment: nitrogen, added Treatment: nitrogen as ammonium, added Treatment: nitrogen as nitrate, added Sample, dry mass Carbon, organic, total Carbon dioxide Methane Carbon dioxide, production rate, CO2-C Methane, production rate, CH4-C Carbon dioxide, production, cumulative CO2-C Methane, production, cumulative CH4-C Carbon dioxide, production, cumulative CO2-C, per soil dry mass Methane, production, cumulative CH4-C, per soil dry mass Carbon dioxide, production, cumulative CO2-C, per unit mass total organic carbon Methane, production, cumulative CH4-C, per unit mass total organic carbon geoscientificInformation ammonium Anaerobic incubation bog Boreal carbon dioxide production FN-Land_2022_SiikanevaPeatland FN-Land_2022_SiikanevaPeatland_20221005 incubation incubation experiment methane production nitrate Nitrogen peat Sampling by hand sphagnum Element analyzer, vario Cube SoliTOC Gas Chromatograph, Shimadzu, Nexis GC-2030 AWI Arctic Land Expedition 2023-04-11 2024-06-17 Complete 61.8383 61.8383 24.1699 24.1699 AWI_Perma Permafrost Research unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 25235 data points text/tab-separated-values Böhm, Marianne (2024): Effects of inorganic nitrogen additions on methane and carbon dioxide production from incubated boreal peat samples [thesis]. Master thesis, https://epic.awi.de/id/eprint/59371/ Böhm, Marianne; Baysinger, Mackenzie; Treat, Claire C (2025): Stoichiometric sample parameters from boreal peat at FN-Land_2022_SiikanevaPeatland_20221005 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974109

This dataset reports greenhouse gas production measurements from a laboratory incubation of sphagnum and peat sourced from a boreal peatland complex (Siikaneva Bog, Finland). Shallow peat samples were extracted in bulk with a bread knife in October 2022 from a homogeneous sphagnum lawn at three locations within several meters distance. Three soil horizons were distinguished according to the position of the water table: above (0-3 cm), fluctuating (3-7 cm) and below the water table (7-20 cm). Three spatial replicates were united per layer. Subsamples from above and below the water table were amended with solutions of NaNO3 and NH4Cl at different concentrations and incubated in 120 ml airtight glass vials in a N2 atmosphere for 365+ days to investigate the effect of nitrogen addenda on greenhouse gas production. Two matching sets of samples were incubated at 4°C and 20°C. Vial containing only untreated water or the treatment solution were kept aside the samples as blanks. The headspace gas was sampled regularly and CO2 and CH4 concentrations determined by GC-FID (Shimadzu Nexis GC-2030). This dataset contains the measured headspace concentrations as well as cumulative carbon fluxes standardized by gram soil carbon. Headspaces were flushed with Nitrogen when CO2 concentrations surpassed 10 000 ppm. Cumulative fluxes were computed from concentration changes between measurements, including an estimate of the fraction of gas dissolved in the water column at each date, and losses during sampling. Additionally, carbon and nitrogen contents are reported from material that was archived before the incubation (soliTOC cube, elementar Analysensysteme / exceed rapid maxN). From the additional portions of the same archive, water was extracted with Rhizon samplers to probe pH and electric conductivity and determine dissolved organic carbon (elementar Analysensysteme / TOC-L analyzer with TNM-1 module, Shimadzu). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.974107"!

http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.pangaea.de/10.1594/PANGAEA.974109 Stoichiometric sample parameters from boreal peat at FN-Land_2022_SiikanevaPeatland_20221005 https://epic.awi.de/id/eprint/59371/ Effects of inorganic nitrogen additions on methane and carbon dioxide production from incubated boreal peat samples https://www.awi.de/en/science/geosciences/permafrost-research.html AWI_Perma DIF 9.4 2025-02-27 2026-03-30