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Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage: a model-based assessment

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Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage: a model-based assessment. / Orwin, Kate; Kirschbaum, Miko U. F.; St John, Mark G. et al.
In: Ecology Letters, Vol. 14, No. 5, 2011, p. 493-502.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Orwin K, Kirschbaum MUF, St John MG, Dickie IA. Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage: a model-based assessment. Ecology Letters. 2011;14(5):493-502. doi: 10.1111/j.1461-0248.2011.01611.x

Author

Orwin, Kate ; Kirschbaum, Miko U. F. ; St John, Mark G. et al. / Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage : a model-based assessment. In: Ecology Letters. 2011 ; Vol. 14, No. 5. pp. 493-502.

Bibtex

@article{8ac4a8f631cb4b2683cbddebff0a077e,
title = "Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage: a model-based assessment",
abstract = "Understanding the factors that drive soil carbon (C) accumulation is of fundamental importance given their potential to mitigate climate change. Much research has focused on the relationship between plant traits and C sequestration, but no studies to date have quantitatively considered traits of their mycorrhizal symbionts. Here, we use a modelling approach to assess the contribution of an important mycorrhizal fungal trait, organic nutrient uptake, to soil C accumulation. We show that organic nutrient uptake can significantly increase soil C storage, and that it has a greater effect under nutrient-limited conditions. The main mechanism behind this was an increase in plant C fixation and subsequent increased C inputs to soil through mycorrhizal fungi. Reduced decomposition due to increased nutrient limitation of saprotrophs also played a role. Our results indicate that direct uptake of nutrients from organic pools by mycorrhizal fungi could have a significant effect on ecosystem C cycling and storage. ",
keywords = "Ectomycorrhizas, organic nutrient uptake, ericoid mycorrhizas, soil carbon storage, microbial nutrient limitation, model, mycorrhizal traits, MySCaN",
author = "Kate Orwin and Kirschbaum, {Miko U. F.} and {St John}, {Mark G.} and Dickie, {Ian A.}",
year = "2011",
doi = "10.1111/j.1461-0248.2011.01611.x",
language = "English",
volume = "14",
pages = "493--502",
journal = "Ecology Letters",
issn = "1461-023X",
publisher = "Wiley",
number = "5",

}

RIS

TY - JOUR

T1 - Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage

T2 - a model-based assessment

AU - Orwin, Kate

AU - Kirschbaum, Miko U. F.

AU - St John, Mark G.

AU - Dickie, Ian A.

PY - 2011

Y1 - 2011

N2 - Understanding the factors that drive soil carbon (C) accumulation is of fundamental importance given their potential to mitigate climate change. Much research has focused on the relationship between plant traits and C sequestration, but no studies to date have quantitatively considered traits of their mycorrhizal symbionts. Here, we use a modelling approach to assess the contribution of an important mycorrhizal fungal trait, organic nutrient uptake, to soil C accumulation. We show that organic nutrient uptake can significantly increase soil C storage, and that it has a greater effect under nutrient-limited conditions. The main mechanism behind this was an increase in plant C fixation and subsequent increased C inputs to soil through mycorrhizal fungi. Reduced decomposition due to increased nutrient limitation of saprotrophs also played a role. Our results indicate that direct uptake of nutrients from organic pools by mycorrhizal fungi could have a significant effect on ecosystem C cycling and storage.

AB - Understanding the factors that drive soil carbon (C) accumulation is of fundamental importance given their potential to mitigate climate change. Much research has focused on the relationship between plant traits and C sequestration, but no studies to date have quantitatively considered traits of their mycorrhizal symbionts. Here, we use a modelling approach to assess the contribution of an important mycorrhizal fungal trait, organic nutrient uptake, to soil C accumulation. We show that organic nutrient uptake can significantly increase soil C storage, and that it has a greater effect under nutrient-limited conditions. The main mechanism behind this was an increase in plant C fixation and subsequent increased C inputs to soil through mycorrhizal fungi. Reduced decomposition due to increased nutrient limitation of saprotrophs also played a role. Our results indicate that direct uptake of nutrients from organic pools by mycorrhizal fungi could have a significant effect on ecosystem C cycling and storage.

KW - Ectomycorrhizas

KW - organic nutrient uptake

KW - ericoid mycorrhizas

KW - soil carbon storage

KW - microbial nutrient limitation

KW - model

KW - mycorrhizal traits

KW - MySCaN

U2 - 10.1111/j.1461-0248.2011.01611.x

DO - 10.1111/j.1461-0248.2011.01611.x

M3 - Journal article

VL - 14

SP - 493

EP - 502

JO - Ecology Letters

JF - Ecology Letters

SN - 1461-023X

IS - 5

ER -