No growth stimulation of Canada’s boreal forest under half-century of combined warming and CO 2 fertilization
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Significance Limited knowledge about the mechanistic drivers of forest growth and responses to environmental changes creates uncertainties about the future role of circumpolar boreal forests in the global carbon cycle. Here, we use newly acquired tree-ring data from Canada’s National Forest Inventory to determine the growth response of the boreal forest to environmental changes. We find no consistent boreal-wide growth response over the past 60 y across Canada. However, some southwestern and southeastern forests experienced a growth enhancement, and some regions such as the northwestern and maritime areas experienced a growth depression. Growth–climate relationships bring evidence of an intensification of the impacts of hydroclimatic variability on growth late in the 20th century, in parallel with the rapid rise of summer temperature.
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The poor understanding of industrial pollution effects is particularly true for the boreal forests of the Northern Hemisphere.
“This is particularly true for the boreal forests of the Northern Hemisphere (Gauthier et al ., 2015; Girardin et al ., 2016)”
From Ecological and conceptual consequences of Arctic pollution (2020) · cites this paper as Girardin et al ., 2016
The Abstract says that understanding boreal forests’ responses to environmental changes remains a scientific challenge. That supports the general point about uncertainty, but the paper does not address whether the effects of industrial pollution on boreal forests are poorly understood. (LLM, conf=0.79)
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A large and persistent carbon sink in the world’s forests
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Self-citationThe McCree-de Wit-Penning de Vries-Thornley respiration paradigms: 30 years later.
Amthor, J. (2000) · Annals of Botany · doi:10.1006/anbo.2000.1175 · Cited by 822 · see citing works
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Sorted by citations
Satellite observations document trends consistent with a boreal forest biome shift
Berner, L. T., & Goetz, S. J. (2022) · Global Change Biology · doi:10.1111/gcb.16121 · Cited by 182 · see citing works
Ecological and conceptual consequences of Arctic pollution
Kirdyanov, A. V., Krusic, P. J., Shishov, V. V., Vaganov, E. A., Fertikov, A. I., Myglan, V. S., Barinov, V. V., Browse, J., Esper, J., Ilyin, V. A., et al. (2020) · Ecology Letters · doi:10.1111/ele.13611 · Cited by 53 · see citing works
“In addition to the antagonistic role of anthropogenic pollutants, the net primary productivity of the boreal biome is also vulnerable to other abiotic stressors (Beck et al., 2011; Gauthier et al., 2015; Girardin et al., 2016; Charney et al., 2016), such as the redistribution of nitrogen as a consequence of widespread…”
BackgroundSelf-citation
- Authors
- Girardin, M. P., Bouriaud, O., Hogg, E. H., Kurz, W., Zimmermann, N. E., Metsaranta, J. M., de Jong, R., Frank, D. C., Esper, J., Büntgen, U., Guo, X. J., & Bhatti, J.
- Affiliations
- Canadian Forest Service (CA)
- Swiss Federal Institute for Forest, Snow and Landscape Research (CH)
- Remote Sensing Laboratories, University of Zurich, CH-8057 Zurich, Switzerland;
- University of Arizona (US)
- Johannes Gutenberg University Mainz (DE)
- Oeschger Centre for Climate Change Research (CH)
- ORCID
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2016-12-12
- Volume
- 113
- Issue
- 52
- Pages
- E8406-E8414
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC5206510
- OpenAlex
- W2566201594
- Cited by
- 298
- References
- 2
- Citations by year
- 2026: 18 · 2025: 18 · 2024: 30 · 2023: 43 · 2022: 30 · 2021: 39 · 2020: 37 · 2019: 27 · 2018: 34 · 2017: 22
- FWCI
- 16.88
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- DORA WSL (Swiss Federal Institute for Forest, Snow and Landscape Research) (submittedVersion)
- Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
- Funders
- Gouvernement du Canada | Natural Resources Canada (Forest Change, National Forest Inventory)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Tree-ring climate responses
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Forest ecology and management
- Physical Sciences › Environmental Science › Global and Planetary Change › Plant Water Relations and Carbon Dynamics
- Keywords
- boreal forest, tree growth, global warming, CO2 fertilization, tree-ring measurements, national forest inventory, climate-growth relationships, hydroclimatic variability, summer temperature, carbon cycle, forest carbon sink
- MeSH terms
- Canada, Carbon Dioxide, Ecology, Geography, Regression Analysis, Temperature, Time Factors, Trees, Models, Statistical, Biomass, Climate Change, Carbon Cycle, Forests, Taiga
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