Roots and Associated Fungi Drive Long-Term Carbon Sequestration in Boreal Forest

  title={Roots and Associated Fungi Drive Long-Term Carbon Sequestration in Boreal Forest},
  author={Karina Engelbrecht Clemmensen and Adam Bahr and Otso Ovaskainen and Anders Dahlberg and Alf Ekblad and H{\aa}kan Wallander and Jan Stenlid and Roger D. Finlay and David A. Wardle and Bj{\"o}rn D. Lindahl},
  pages={1615 - 1618}
Forest Fungi Boreal forest is one of the world's major biomes, dominating the subarctic northern latitudes of Europe, Asia, and America. The soils of boreal forest function as a net sink in the global carbon cycle and, hitherto, it has been thought that organic matter in this sink primarily accumulates in the form of plant remains. Clemmensen et al. (p. 1615; see the Perspective by Treseder and Holden) now show that most of the stored carbon in boreal forested islands in Sweden is in fact… 
Carbon sequestration is related to mycorrhizal fungal community shifts during long-term succession in boreal forests.
It is postulate that, by affecting turnover and decomposition of fungal tissues, mycorrhizal fungal identity and growth form are critical determinants of C and N sequestration in boreal forests.
A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest.
The finding that a narrow group of fungi exerts a major influence on carbon cycling refutes the prevailing dogma of functional redundancy among microbial decomposer and shows that certain ectomycorrhizal fungi can complement free-living decomposers, maintaining nutrient cycling and tree productivity under nutrient poor conditions.
Soil Fungal Community Structure in Boreal Pine Forests: From Southern to Subarctic Areas of Finland
Re-analyzed the data from previous studies and highlighted the core fungal community composition and potential functional groups in three forests dominated by Scots pine in Finland, and identified the fungal generalists that appear across geographic locations despite differences in local conditions.
Ectomycorrhizal fungi contribute to soil organic matter cycling in sub-boreal forests
The study shows that EMF hyphae are likely important contributors to current SOM turnover in sub-boreal systems and suggests that any increased EMF biomass that might result from higher below-ground C allocation by trees would not suppress C fluxes from sub- boreal soils.
Changes in fungal communities along a boreal forest soil fertility gradient.
Tolerance to acidity and nitrogen deficiency seems to be of greater importance than plant carbon allocation patterns in determining responses of fungal communities to soil fertility, in old-growth boreal forests.
Ectomycorrhizal fungal mycelial dynamics and its role in forest soil carbon cycling
This thesis assessed soil fungal communities along the chronosequence of managed Pinus sylvestris forests, quantifying C fluxes associated with the extraradical mycelium (ERM) of mycorrhizal fungi, and examining how the ERM contributes to variations in soil C cycling along a nemoboreal chronOSEquence.
When the forest dies: the response of forest soil fungi to a bark beetle-induced tree dieback
This work examines the structural and functional response of the litter and soil microbial community in a Picea abies forest to tree dieback following an invasion of the bark beetle Ips typographus, with a specific focus on the fungal community.
Forest Soil Bacteria: Diversity, Involvement in Ecosystem Processes, and Response to Global Change
Bacteria contribute to a range of essential soil processes involved in the cycling of carbon, nitrogen, and phosphorus, and mediate multiple critical steps in the nitrogen cycle, including N fixation.


Forest soil CO 2 flux : uncovering the contribution and environmental responses of ectomycorrhizas
Forests play a critical role in the global carbon cycle, being considered an important and continuing carbon sink. However, the response of carbon sequestration in forests to global climate change
Forest soil CO2 flux: uncovering the contribution and environmental responses of ectomycorrhizas
Forests play a critical role in the global carbon cycle, being considered an important and continuing carbon sink. However, the response of carbon sequestration in forests to global climate change
Spatial separation of litter decomposition and mycorrhizal nitrogen uptake in a boreal forest.
Observations show that the degrading and nutrient-mobilizing components of the fungal community are spatially separated, which has important implications for biogeochemical studies of boreal forest ecosystems.
Arbuscular Mycorrhizal Fungi Increase Organic Carbon Decomposition Under Elevated CO2
Evidence is presented from four independent microcosm and field experiments demonstrating that CO2 enhancement of AMF results in considerable soil carbon losses, challenging the assumption that AMF protect against degradation of organic carbon in soil and raising questions about the current prediction of terrestrial ecosystem carbon balance under future climate-change scenarios.
Effect of ecosystem retrogression on stable nitrogen and carbon isotopes of plants, soils and consumer organisms in boreal forest islands.
  • F. Hyodo, D. Wardle
  • Environmental Science
    Rapid communications in mass spectrometry : RCM
  • 2009
Results show that measurement of delta(15)N and delta(13)C of plants, soils, and consumers across the same environmental gradient can provide insights into environmental factors that drive both the aboveground and belowground subsystems, as well as the linkages between them.
Environmental Factors and Ecological Processes in Boreal Forests
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Structural equation modelling reveals plant-community drivers of carbon storage in boreal forest ecosystems
Structural equation modelling is applied to a previously published dataset involving 30 boreal-forested islands to explore the simultaneous influence of several factors believed to be important in influencing above-ground, below-ground and total ecosystem C accumulation, and found that wildfire was a major driver of ecosystem C sequestration.
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Roots and fungi accelerate carbon and nitrogen cycling in forests exposed to elevated CO2.
A common finding in multiple CO(2) enrichment experiments in forests is the lack of soil carbon (C) accumulation owing to microbial priming of 'old' soil organic matter (SOM). However, soil C losses
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Temperate forests of North America are thought to besignificant sinks of atmospheric CO2. Wedeveloped a below-ground carbon (C) budget forwell-drained soils in Harvard Forest Massachusetts,