globalchange  > 气候变化与战略
DOI: 10.1111/ele.13737
论文题名:
The mycorrhizal tragedy of the commons
作者: Henriksson N.; Franklin O.; Tarvainen L.; Marshall J.; Lundberg-Felten J.; Eilertsen L.; Näsholm T.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
卷: 24, 期:6
起始页码: 1215
结束页码: 1224
语种: 英语
中文关键词: Carbon ; forest ; immobilization ; mycorrhiza ; nitrogen ; trade
英文关键词: Pinus sylvestris ; carbon ; nitrogen ; biomass ; mycorrhiza ; plant root ; soil ; tree ; Biomass ; Carbon ; Mycorrhizae ; Nitrogen ; Plant Roots ; Soil ; Trees
英文摘要: Trees receive growth-limiting nitrogen from their ectomycorrhizal symbionts, but supplying the fungi with carbon can also cause nitrogen immobilization, which hampers tree growth. We present results from field and greenhouse experiments combined with mathematical modelling, showing that these are not conflicting outcomes. Mycorrhizal networks connect multiple trees, and we modulated C provision by strangling subsets of Pinus sylvestris trees, assuming that carbon supply to fungi was reduced proportionally to the strangled fraction. We conclude that trees gain additional nitrogen at the expense of their neighbours by supplying more carbon to the fungi. But this additional carbon supply aggravates nitrogen limitation via immobilization of the shared fungal biomass. We illustrate the evolutionary underpinnings of this situation by drawing on the analogous tragedy of the commons, where the shared mycorrhizal network is the commons, and explain how rising atmospheric CO2 may lead to greater nitrogen immobilization in the future. © 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/166847
Appears in Collections:气候变化与战略

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作者单位: Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, SE-90183, Sweden; International Institute for Applied Systems Analysis, Schlossplatz 1, Laxenburg, A-2361, Austria; Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, SE-40530, Sweden; Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre Swedish University of Agricultural Sciences, Umeå, SE-90183, Sweden

Recommended Citation:
Henriksson N.,Franklin O.,Tarvainen L.,et al. The mycorrhizal tragedy of the commons[J]. Ecology Letters,2021-01-01,24(6)
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