globalchange  > 气候变化与战略
DOI: 10.1111/ele.13746
论文题名:
A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest
作者: Lindahl B.D.; Kyaschenko J.; Varenius K.; Clemmensen K.E.; Dahlberg A.; Karltun E.; Stendahl J.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期:7
起始页码: 1341
结束页码: 1351
语种: 英语
中文关键词: carbon sequestration ; decomposition ; functional guilds ; functional redundancy ; fungal communities ; metabarcoding ; mor layer ; nitrogen ; soil ; statistical modelling
英文关键词: boreal forest ; carbon sequestration ; carbon storage ; decomposition ; disturbance ; ectomycorrhiza ; inorganic matter ; nutrient cycling ; organic matter ; soil carbon ; topsoil ; Cortinarius acutus ; Matthiola ; carbon ; carbon sequestration ; Cortinarius ; forest ; fungus ; microbiology ; mycorrhiza ; soil ; Sweden ; taiga ; Carbon ; Carbon Sequestration ; Cortinarius ; Forests ; Fungi ; Mycorrhizae ; Soil ; Soil Microbiology ; Sweden ; Taiga
英文摘要: Boreal forest soils are important global carbon sinks, with significant storage in the organic topsoil. Decomposition of these stocks requires oxidative enzymes, uniquely produced by fungi. Across Swedish boreal forests, we found that local carbon storage in the organic topsoil was 33% lower in the presence of a group of closely related species of ectomycorrhizal fungi – Cortinarius acutus s.l. This observation challenges the prevailing view that ectomycorrhizal fungi generally act to increase carbon storage in soils but supports the idea that certain ectomycorrhizal fungi can complement free-living decomposers, maintaining organic matter turnover, nutrient cycling and tree productivity under nutrient-poor conditions. The indication that a narrow group of fungi may exert a major influence on carbon cycling questions the prevailing dogma of functional redundancy among microbial decomposers. Cortinarius acutus s.l. responds negatively to stand-replacing disturbance, and associated population declines are likely to increase soil carbon sequestration while impeding long-term nutrient cycling. © 2021 The Authors. Ecology Letters published by John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166875
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作者单位: Department of Soil and Environment, Swedish University of Agricultural Sciences, Uppsala, Sweden; Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden

Recommended Citation:
Lindahl B.D.,Kyaschenko J.,Varenius K.,et al. A group of ectomycorrhizal fungi restricts organic matter accumulation in boreal forest[J]. Ecology Letters,2021-01-01,24(7)
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