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Links between boreal forest management, soil fungal communities and below-ground carbon sequestration

Jörgensen, Karolina and Granath, Gustaf and Lindahl, Bjorn D. and Strengbom, Joachim and Lindahl, Björn (2022). Links between boreal forest management, soil fungal communities and below-ground carbon sequestration. Functional Ecology. 36 :2 , 392-405
[Research article]

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Abstract

1. Forest management has a potential to alter below-ground carbon storage. However, the underlying mechanisms, and the relative importance of carbon input and decomposition in regulation of soil carbon dynamics are poorly understood.2. We examined whether interactive effects of forest fertilization and thinning on carbon stocks in the topsoil of boreal forests were linked to changes in fungal community composition, biomass and enzyme activities, in a long-term fertilization and thinning experiment distributed across 29 Pinus sylvestris forests along a 1,300 km latitudinal transect in Sweden.3. Nitrogen fertilization increased fungal biomass, particularly towards the north and mainly by promoting root-associated Ascomycetes, but the response was moderated by thinning. Fungal biomass correlated positively with carbon stocks in the organic topsoil. However, ectomycorrhizal Cortinarius species were reduced in abundance by fertilization and correlated negatively with carbon stocks.4. Plausibly, increased soil carbon stocks after fertilization are linked to increased input of carbon in the form of root-associated mycelium combined with the loss of ectomycorrhizal decomposers within the genus Cortinarius. These fungal responses to fertilization may mediate a natural climate solution by promoting carbon sequestration in the organic topsoil, but the effect of fertilization may also be undesired from a biodiversity perspective.

Authors/Creators:Jörgensen, Karolina and Granath, Gustaf and Lindahl, Bjorn D. and Strengbom, Joachim and Lindahl, Björn
Title:Links between boreal forest management, soil fungal communities and below-ground carbon sequestration
Series Name/Journal:Functional Ecology
Year of publishing :2022
Volume:36
Number:2
Page range:392-405
Number of Pages:14
Publisher:WILEY
ISSN:0269-8463
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:ectomycorrhiza, fertilization, forest management, fungal biomass, fungal community, thinning
URN:NBN:urn:nbn:se:slu:epsilon-p-115152
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115152
Additional ID:
Type of IDID
DOI10.1111/1365-2435.13985
Web of Science (WoS)000733326800001
ID Code:27096
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment

(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:14 Feb 2022 14:25
Metadata Last Modified:16 May 2022 20:24

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