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Production and turn...
Production and turnover of ectomycorrhizal extramatrical mycelial biomass and necromass under elevated CO2 and nitrogen fertilization
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- Ekblad, Alf (författare)
- Örebro universitet,Örebro University,Institutionen för naturvetenskap och teknik
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- Mikusinska, Anna (författare)
- Örebro University,School of Science & Technology, Örebro University, Örebro, Sweden
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- Ågren, Göran (författare)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Institutionen för ekologi,Department of Ecology,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Menichetti, Lorenzo (författare)
- Agroscope, Zürich, Switzerland
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- Wallander, Håkan (författare)
- Lund University,Lunds universitet,Mikrobiologisk ekologi,Forskargrupper vid Lunds universitet,Microbial Ecology,Lund University Research Groups,Department of Biology, Microbial Ecology, Lund University, Lund, Sweden
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- Vilgalys, Rytas (författare)
- Nicholas School of the Environment, Duke University, Durham, USA
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- Bahr, Adam (författare)
- Lund University,Lunds universitet,Mikrobiologisk ekologi,Forskargrupper vid Lunds universitet,Microbial Ecology,Lund University Research Groups,Department of Biology, Microbial Ecology, Lund University, Lund, Sweden
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- Eriksson, Ulrika, 1972- (författare)
- Örebro universitet,Örebro University,Institutionen för naturvetenskap och teknik
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(creator_code:org_t)
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- 2016-04-27
- 2016
- Engelska 12 s.
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Ingår i: New Phytologist. - Hoboken, USA : Wiley. - 0028-646X .- 1469-8137. ; 211:3, s. 874-885
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://res.slu.se/i...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Extramatrical mycelia (EMM) of ectomycorrhizal fungi are important in carbon (C) and nitrogen (N) cycling in forests, but poor knowledge about EMM biomass and necromass turnovers makes the quantification of their role problematic. We studied the impacts of elevated CO2 and N fertilization on EMM production and turnover in a Pinus taeda forest. EMM C was determined by the analysis of ergosterol (biomass), chitin (total bio- and necromass) and total organic C (TOC) of sand-filled mycelium in-growth bags. The production and turnover of EMM bio- and necromass and total C were estimated by modelling. N fertilization reduced the standing EMM biomass C to 57% and its production to 51% of the control (from 238 to 122 kg C ha-1 yr-1), whereas elevated CO2 had no detectable effects. Biomass turnover was high (~13 yr-1) and unchanged by the treatments. Necromass turnover was slow and was reduced from 1.5 yr-1 in the control to 0.65 yr-1 in the N-fertilized treatment. However, TOC data did not support an N effect on necromass turnover. An estimated EMM production ranging from 2.5 to 6% of net primary production stresses the importance of its inclusion in C models. A slow EMM necromass turnover indicates an importance in building up forest humus.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
Nyckelord
- Duke Forest free-air CO enrichment (FACE)
- Ectomycorrhiza
- Elevated CO
- Extramatrical mycelium
- Fungal biomass
- Nitrogen (N) fertilization
- Stable isotopes
- Turnover
- Duke Forest free-air CO2 enrichment (FACE)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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