SPRUCE Measurements of Fine Root Production and Chemistry from Root Ingrowth Cores, Marcell Experimental Forest, Minnesota, 2022-2023

Dataset · Mon Dec 29 00:00:00 EST 2025

DOI:https://doi.org/10.15485/3010939· OSTI ID:3010939

Määttä, Tiia ^[1]; Childs, Joanne ^[2]; Iversen, Colleen M. ^[2]; Salmon, Verity G. ^[2]; Schwaner, Geoffrey ^[2]; Weber, Sören E. ^[2]; Malhotra, Avni ^[3]

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1. Univ. of Zürich  (Switzerland)
2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
3. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

This dataset contains fine root production and tissue chemistry measurements from root ingrowth cores. Ingrowth cores were deployed in peat from June 28, 2022 to June 24, 2023 (2022-06-28 to 2023-06-24) inside SPRUCE Experiment plots at the Marcell Experimental Forest in northern Minnesota. The warming and elevated carbon dioxide (CO2) treatments in this dataset include +0 degrees Celsius (C) (+0 and +500 parts per million (ppm) elevated CO2), +4.5 degrees C (+0 and +500 ppm elevated CO2) and +9 degrees C (+0 and +500 ppm elevated CO2) for both hummocks and hollows, as well as +2.25 degrees C (+0 and +500 ppm) and +6.75 degrees C (+0 and +500 ppm) for hollows from minimum 10 cm depth from the peat surface. Measurements include root average diameter, root length, root biomass, and root tissue nitrogen (%N and δ15N) and carbon (%C and δ13C) concentration per plant functional type and microtopographical feature. Root length and biomass are standardized to 10 cm depth. These data were used to assess the warming and elevated CO2 response of fine roots across different peatland microtopographical features (hummocks and hollows) and plant functional types (shrub, spruce and larch). 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.

• Research Organization: ORNL Terrestrial Ecosystem Science SFA
• Sponsoring Organization: ESS-DIVE; U.S. DOE > Office of Science > Biological and Environmental Research (BER)
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 3010939
• Country of Publication: United States
• Language: English

Related Subjects

ESS-DIVE CSV File Formatting Guidelines Reporting Format
ESS-DIVE File Level Metadata Reporting Format
Marcell Experimental Forest
Peatland
SPRUCE Experiment
Spruce and Peatland Responses Under Changing Environments
fine roots
ingrowth cores
root biomass
root chemistry
root delta 13 carbon
root delta 15 nitrogen
root diameter
root length
root tissue carbon
root tissue nitrogen
root traits