Autochamber CH4 Fluxes and δ13C Values at Stordalen Mire ...

• Main Author: McCalley, Carmody K.
• Format: Dataset
• Language: English
• Published: Zenodo 2023
• Subjects: EMERGE Biology Integration Institute; Stordalen Mire; Bubier; Stordalen; palsa
• Online Access: https://dx.doi.org/10.5281/zenodo.7897921; https://zenodo.org/doi/10.5281/zenodo.7897921

Autochamber-based CH4 fluxes and δ13C values measured with a Tunable Infrared Laser Direct Absorption Spectrometer (TILDAS, Aerodyne Research Inc.); and ancillary data, including CO2 fluxes (measured with a LGR Greenhouse Gas Analyzer), temperatures, atmospheric pressure, and photosynthetically active radiation (PAR). In addition to the data published here, data from 2011 is also available in the supplementary files to McCalley et al. (2014) under the Source data to Fig. 1 link. METHODS: Methane fluxes were measured using a system of 8 automatic gas-sampling chambers made of transparent Lexan (n=3 each in the palsa and bog habitats, and n=2 in the fen habitat). Chambers were initially installed in the three habitat types at Stordalen Mire in 2001 (Bäckstrand et al., 2008) and the chamber lids were replaced in 2011 with the current design, similar to that described by Bubier et al 2003. Chambers cover an area of 0.2 m2 (45 cm x 45 cm), with a height ranging from 15-75 cm depending on habitat vegetation. At ...