Linking Post-fire Tree Density to Carbon Storage in High-Latitude Cajander Larch (Larix cajanderi) Forests of Far Northeastern Siberia

With climate warming and drying, fire activity is increasing in Cajander larch ( Larix cajanderi Mayr.) forests underlain by continuous permafrost in northeastern Siberia, and initial post-fire tree demographic processes could unfold to determine long-term forest carbon (C) dynamics through impacts...

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Bibliographic Details
Published in:Ecosystems (New York) 2024-08, Vol.27 (5), p.655-672
Main Authors: Alexander, H. D., Paulson, A. K., Loranty, M. M., Mack, M. C., Natali, S. M., Pena, H., Davydov, S., Spektor, V., Zimov, N.
Format: Article
Language:English
Subjects:
Biomass
Biomedical and Life Sciences
Carbon
Carbon sequestration
Climate change
Demographics
Demography
Density
Ecology
Environmental Management
Forests
Geoecology/Natural Processes
Global warming
Hydrology/Water Resources
Larix cajanderi
Life Sciences
Organic matter
Organic soils
Permafrost
Plant Sciences
Snags
Soil organic matter
Trees
Understory
Wildfires
Zoology
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Summary:With climate warming and drying, fire activity is increasing in Cajander larch ( Larix cajanderi Mayr.) forests underlain by continuous permafrost in northeastern Siberia, and initial post-fire tree demographic processes could unfold to determine long-term forest carbon (C) dynamics through impacts on tree density. Here, we evaluated above- and belowground C pools across 25 even-aged larch stands of varying tree densities that established following a wildfire in ~ 1940 near Cherskiy, Russia. Total C pools increased with increased larch tree density, from ~ 9,000 g C m −2 in low-density stands to ~ 11,000 g C m −2 in high and very high-density stands, with increases most pronounced at tree densities 
ISSN:1432-9840
1435-0629
DOI:10.1007/s10021-024-00913-0