气候变化领域集成服务门户(CCPortal): Ectomycorrhizal fungi slow soil carbon cycling

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DOI	10.1111/ele.12631
	Ectomycorrhizal fungi slow soil carbon cycling
	Averill C.; Hawkes C.V.
发表日期	2016
ISSN	1461-023X
EISSN	1461-0248
卷号	19 期号:8
英文摘要	Respiration of soil organic carbon is one of the largest fluxes of CO2 on earth. Understanding the processes that regulate soil respiration is critical for predicting future climate. Recent work has suggested that soil carbon respiration may be reduced by competition for nitrogen between symbiotic ectomycorrhizal fungi that associate with plant roots and free-living microbial decomposers, which is consistent with increased soil carbon storage in ectomycorrhizal ecosystems globally. However, experimental tests of the mycorrhizal competition hypothesis are lacking. Here we show that ectomycorrhizal roots and hyphae decrease soil carbon respiration rates by up to 67% under field conditions in two separate field exclusion experiments, and this likely occurs via competition for soil nitrogen, an effect larger than 2 °C soil warming. These findings support mycorrhizal competition for nitrogen as an independent driver of soil carbon balance and demonstrate the need to understand microbial community interactions to predict ecosystem feedbacks to global climate. © 2016 John Wiley & Sons Ltd/CNRS.
英文关键词	Biogeochemistry; ecosystem ecology; mycorrhizal fungi; soil carbon; soil ecology; soil nitrogen
学科领域	carbon; enzyme; soil; biomass; carbon cycle; chemistry; forest; fungus; metabolism; microbiology; mycorrhiza; physiology; soil; Tsuga; Biomass; Carbon; Carbon Cycle; Enzymes; Forests; Fungi; Mycorrhizae; Soil; Tsuga; Fungi
语种	英语
scopus关键词	carbon; enzyme; soil; biomass; carbon cycle; chemistry; forest; fungus; metabolism; microbiology; mycorrhiza; physiology; soil; Tsuga; Biomass; Carbon; Carbon Cycle; Enzymes; Forests; Fungi; Mycorrhizae; Soil; Tsuga; Fungi
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/118510
作者单位	Department of Integrative Biology, University of Texas at Austin, Austin, TX, 78712, USA, United States
推荐引用方式 GB/T 7714	Averill C.,Hawkes C.V.. Ectomycorrhizal fungi slow soil carbon cycling[J],2016,19(8).
APA	Averill C.,&Hawkes C.V..(2016).Ectomycorrhizal fungi slow soil carbon cycling.Ecology letters,19(8).
MLA	Averill C.,et al."Ectomycorrhizal fungi slow soil carbon cycling".Ecology letters 19.8(2016).