Articles | Volume 22, issue 21
https://doi.org/10.5194/bg-22-6427-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-6427-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Nov 2025
Research article |
| 06 Nov 2025
| 06 Nov 2025
Unpacking climate effects on boreal tree growth: an analysis of tree-ring widths across temperature and soil moisture gradients
Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
Joachim Strengbom
Department of Ecology, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
Johannes Edvardsson
Laboratory of Wood Anatomy and Dendrochronology, Department of Geology, Lund University, 22362 Lund, Sweden
Gustaf Granath
Department of Ecology and Genetics, Uppsala University, 75236 Uppsala, Sweden
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Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-585, https://doi.org/10.5194/essd-2025-585, 2025
Preprint under review for ESSD
Short summary
Short summary
This dataset includes monthly measurements of carbon dioxide and methane exchange between land, water, and the atmosphere from over 1,000 sites in Arctic and boreal regions. It combines measurements from a variety of ecosystems, including wetlands, forests, tundra, lakes, and rivers, gathered by over 260 researchers from 1984–2024. This dataset can be used to improve and reduce uncertainty in carbon budgets in order to strengthen our understanding of climate feedbacks in a warming world.
Karolina Janecka, Kerstin Treydte, Silvia Piccinelli, Loïc Francon, Marçal Argelich Ninot, Johannes Edvardsson, Christophe Corona, Veiko Lehsten, and Markus Stoffel
Clim. Past, 21, 1679–1697, https://doi.org/10.5194/cp-21-1679-2025, https://doi.org/10.5194/cp-21-1679-2025, 2025
Short summary
Short summary
Peatlands hold valuable insights about past climate, but the link between tree growth and water conditions remains unclear. We analyzed tree-ring stable isotopes from Scots pines in Swedish peatlands to study their response to water levels and climate. Unlike tree-ring widths, stable isotopes showed strong, consistent signals of water table levels and summer climate. This improves our ability to reconstruct past climate changes from peatland trees.
Gustaf Granath, Christopher D. Evans, Joachim Strengbom, Jens Fölster, Achim Grelle, Johan Strömqvist, and Stephan J. Köhler
Biogeosciences, 18, 3243–3261, https://doi.org/10.5194/bg-18-3243-2021, https://doi.org/10.5194/bg-18-3243-2021, 2021
Short summary
Short summary
We measured element losses and impacts on water quality following a wildfire in Sweden. We observed the largest carbon and nitrogen losses during the fire and a strong pulse of elements 1–3 months after the fire that showed a fast (weeks) and a slow (months) release from the catchments. Total carbon export through water did not increase post-fire. Overall, we observed a rapid recovery of the biogeochemical cycling of elements within 3 years but still an annual net release of carbon dioxide.
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Short summary
By studying tree-rings and climatic data throughout Sweden, we have found that tree-growth in warm areas is more negatively affected by increasing temperature than tree-growth in cold areas. We also found that soil moisture has a very small effect when it comes to mitigating the negative effect of increasing temperature. These findings suggest that tree-growth responses to a changing climate will likely vary with the local climate but not so much with differences in soil moisture.
By studying tree-rings and climatic data throughout Sweden, we have found that tree-growth in...
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