SPRUCE Air 13C and 14C Isotopes, Marcell Experimental Forest, Minnesota, Beginning in 2016

Description

This data set reports ¹³C and ¹⁴C signatures of air from the SPRUCE experimental study plots located in the S1-Bog from 2016-2025 (2016-04-13 to 2025-06-02). Future updates to this dataset will be made as these analyses are anticipated to continue through the end of the study in 2025. Air measurements were collected approximately five times throughout each active growing season beginning in 2016 and included the 10 SPRUCE experimental plots (Plots 4, 6, 8, 10, 11, 13, 16, 17, 19, and 20) two ambient co-located ambient plots (Plots 7 and 21) and a site at the Marcell Experiment Station’s S2-Bog meteorological station (MET) located 1.7 km northeast of the SPRUCE experimental site on the S1-Bog.  Air samples were assessed for both ¹³C- and ¹⁴C-CO₂ signatures. ¹³C and ¹⁴C isotopic signatures can be used in end-member analysis and C-cycle models to track the movement of C within the experimental ecosystem, calculate turnover times within plant tissues, and to test mechanisms used in models. This dataset contains one data file in comma separate (*.csv) format. Additional metadata are provided: one data dictionary and a file-level metadata file in comma separate (*.csv) format and a user guide in PDF (*.pdf) format.

Citation

McFarlane, KJ, PJ Hanson & KJ Pearson. 2025. SPRUCE Air 13C and 14C Isotopes, Marcell Experimental Forest, Minnesota, Beginning in 2016. Oak Ridge National Laboratory, TES SFA, U.S. Department of Energy, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.25581/spruce.118/2574478

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Tuesday, August 5, 2025

SPRUCE ID: spruce.118

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