气候变化领域集成服务门户(CCPortal): The mycorrhizal tragedy of the commons

CCPortal

DOI	10.1111/ele.13737
	The mycorrhizal tragedy of the commons
	Henriksson N.; Franklin O.; Tarvainen L.; Marshall J.; Lundberg-Felten J.; Eilertsen L.; Näsholm T.
发表日期	2021
ISSN	1461023X
起始页码	1215
结束页码	1224
卷号	24 期号:6
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.
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
语种	英语
来源期刊	Ecology Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204406
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
推荐引用方式 GB/T 7714	Henriksson N.,Franklin O.,Tarvainen L.,et al. The mycorrhizal tragedy of the commons[J],2021,24(6).
APA	Henriksson N..,Franklin O..,Tarvainen L..,Marshall J..,Lundberg-Felten J..,...&Näsholm T..(2021).The mycorrhizal tragedy of the commons.Ecology Letters,24(6).
MLA	Henriksson N.,et al."The mycorrhizal tragedy of the commons".Ecology Letters 24.6(2021).