气候变化领域集成服务门户(CCPortal): Disproportionate increase in freshwater methane emissions induced by experimental warming

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DOI	10.1038/s41558-020-0824-y
	Disproportionate increase in freshwater methane emissions induced by experimental warming
	Zhu Y.; Purdy K.J.; Eyice Ö.; Shen L.; Harpenslager S.F.; Yvon-Durocher G.; Dumbrell A.J.; Trimmer M.
发表日期	2020
ISSN	1758-678X
起始页码	685
结束页码	690
卷号	10 期号:7
英文摘要	Net emissions of the potent GHG methane from ecosystems represent the balance between microbial methane production (methanogenesis) and oxidation (methanotrophy), each with different sensitivities to temperature. How this balance will be altered by long-term global warming, especially in freshwaters that are major methane sources, remains unknown. Here we show that the experimental warming of artificial ponds over 11 years drives a disproportionate increase in methanogenesis over methanotrophy that increases the warming potential of the gases they emit. The increased methane emissions far exceed temperature-based predictions, driven by shifts in the methanogen community under warming, while the methanotroph community was conserved. Our experimentally induced increase in methane emissions from artificial ponds is, in part, reflected globally as a disproportionate increase in the capacity of naturally warmer ecosystems to emit more methane. Our findings indicate that as Earth warms, natural ecosystems will emit disproportionately more methane in a positive feedback warming loop. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	emission; experimental study; global warming; greenhouse gas; high temperature; methane; methanogenesis; methanotrophy; microbial activity; microbial community; pond; prediction
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142190
作者单位	School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom; School of Life Sciences, University of Warwick, Coventry, United Kingdom; Institute of Ecology, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, China; Department of Ecosystem Research, Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Berlin, Germany; Environment and Sustainability Institute, University of Exeter, Penryn Campus, Penryn, United Kingdom; School of Life Sciences, University of Essex, Colchester, United Kingdom
推荐引用方式 GB/T 7714	Zhu Y.,Purdy K.J.,Eyice Ö.,et al. Disproportionate increase in freshwater methane emissions induced by experimental warming[J],2020,10(7).
APA	Zhu Y..,Purdy K.J..,Eyice Ö..,Shen L..,Harpenslager S.F..,...&Trimmer M..(2020).Disproportionate increase in freshwater methane emissions induced by experimental warming.Nature Climate Change,10(7).
MLA	Zhu Y.,et al."Disproportionate increase in freshwater methane emissions induced by experimental warming".Nature Climate Change 10.7(2020).