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

Description

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.

This dataset is available for download at ESS-DIVE, please visit the DOI link in the citation below for access.

Citation

Määttä, T, J Childs, CM Iversen, VG Salmon, G Schwaner, SE Weber, and A Malhotra 2025. SPRUCE Measurements of Fine Root Production and Chemistry from Root Ingrowth Cores, Marcell Experimental Forest, Minnesota, 2022-2023. ORNL Terrestrial Ecosystem Science SFA, ESS-DIVE repository. Dataset. https://doi.org/10.15485/3010939

Posted

Sunday, January 11, 2026

SPRUCE ID: spruce.201

Public