SPRUCE Small Differences in Ombrotrophy Control Regional-Scale Variation in Methane Cycling among Sphagnum-Dominated Peatlands: Supporting Data
Description
This dataset contains net ecosystem respiration and the isotopic composition of emitted methane (CH4) form flux chambers as well as anions and cations from ion chromatography. Samples were collected from the Spruce and Peatland Responses Under Changing Environments (SPRUCE) experimental site within the Marcell Experimental Forest in northern Minnesota, USA from June 2013 to June 2014 (2013-06-01 to 2014-06-30). This dataset were used in analyses in Zalman et al. (2018), which reported on the mechanisms controlling carbon (C) cycling rates and greenhouse gas emissions using a combination of biogeochemical and microbial approaches in three low pH, Sphagnum-dominated peatlands in northern Minnesota. In particular, biogeochemical parameters (CH4 and carbon dioxide (CO2) production potentials, porewater and gas CH4 and CO2 concentrations, and associated isotopic signatures), soil chemistry (organic acids and phenolics), and microbial community characteristics (quantification of methanogen and methanotroph abundance and activity) over a 1-year period in these three peatlands.
The objective of this intensive study was to analyze biogeochemical and microbial characteristics of three outwardly similar low pH, Sphagnum-dominated peatlands to determine key characteristics that could explain differences in anaerobic C cycling and net CH4 flux despite their close geographical proximity and similar soil pH and plant communities.
This dataset contains two data files in comma-separate values (*.csv) format. Additional metadata are provided: two data dictionaries and a file-level metadata file in comma-separate values (.csv) format and a user guide in PDF (*.pdf) format. All figures from Zalman et al. (2018) and all additional online resources are provided for completeness in the user guide. During the August 2026 update to this dataset, the ‘Sampling_Date’ column in the data files was changed from MM/DD/YYYY to YYYY-MM-DD format. No data values were altered.
Citation
This dataset is available for download at ESS-DIVE, please visit the DOI link in the citation below for access.
Zalman, C, JK Keller, MM Tfaily, M Kolton, L Pfeifer-Meister, RM Wilson, X Lin, J Chanton, JE Kostka, A Gill, A Finzi, AM Hopple, BJM Bohannan, and SD Bridgham. 2018. SPRUCE Small Differences in Ombrotrophy Control Regional-Scale Variation in Methane Cycling among Sphagnum¬-Dominated Peatlands: Supporting Data. ORNL Terrestrial Ecosystem Science SFA, ESS-DIVE repository. Dataset. https://doi.org/10.25581/spruce.043/1434643
Posted
Wednesday, April 25, 2018
SPRUCE ID: spruce.043
Public
