气候变化领域集成服务门户(CCPortal): Microbial responses to warming enhance soil carbon loss following translocation across a tropical forest elevation gradient

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DOI	10.1111/ele.13379
	Microbial responses to warming enhance soil carbon loss following translocation across a tropical forest elevation gradient
	Nottingham A.T.; Whitaker J.; Ostle N.J.; Bardgett R.D.; McNamara N.P.; Fierer N.; Salinas N.; Ccahuana A.J.Q.; Turner B.L.; Meir P.
发表日期	2019
ISSN	1461023X
卷号	22 期号:11
英文摘要	Tropical soils contain huge carbon stocks, which climate warming is projected to reduce by stimulating organic matter decomposition, creating a positive feedback that will promote further warming. Models predict that the loss of carbon from warming soils will be mediated by microbial physiology, but no empirical data are available on the response of soil carbon and microbial physiology to warming in tropical forests, which dominate the terrestrial carbon cycle. Here we show that warming caused a considerable loss of soil carbon that was enhanced by associated changes in microbial physiology. By translocating soils across a 3000 m elevation gradient in tropical forest, equivalent to a temperature change of ± 15 °C, we found that soil carbon declined over 5 years by 4% in response to each 1 °C increase in temperature. The total loss of carbon was related to its original quantity and lability, and was enhanced by changes in microbial physiology including increased microbial carbon-use-efficiency, shifts in community composition towards microbial taxa associated with warmer temperatures, and increased activity of hydrolytic enzymes. These findings suggest that microbial feedbacks will cause considerable loss of carbon from tropical forest soils in response to predicted climatic warming this century. © 2019 John Wiley & Sons Ltd/CNRS
英文关键词	Carbon-use-efficiency; climate feedback; climate warming; lowland tropical forest; montane tropical forest; Q 10; soil carbon cycle; translocation
语种	英语
scopus关键词	carbon; climate change; forest; microbiology; soil; Carbon; Climate Change; Forests; Soil; Soil Microbiology
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/121012
作者单位	School of Geosciences, University of Edinburgh, Crew Building, Kings Buildings, Edinburgh, EH9 3FF, United Kingdom; Smithsonian Tropical Research Institute, Apartado, Balboa, Ancon, 0843-03092, Panama; Centre for Ecology & Hydrology, Lancaster Environment Centre, Lancaster, LA1 4AP, United Kingdom; Lancaster Environment Centre, Lancaster University, Library Avenue, Lancaster, LA1 4YQ, United Kingdom; School of Earth and Environmental Sciences, Michael Smith Building, The University of Manchester, Oxford Road, Manchester, M13 9PT, United Kingdom; Department of Ecology and Evolutionary Biology, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Seccion Química, Pontificia Universidad Católica del Peru, Lima, Peru; Facultad de Biología, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru; Research School of Biology, Australian National University, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Nottingham A.T.,Whitaker J.,Ostle N.J.,et al. Microbial responses to warming enhance soil carbon loss following translocation across a tropical forest elevation gradient[J],2019,22(11).
APA	Nottingham A.T..,Whitaker J..,Ostle N.J..,Bardgett R.D..,McNamara N.P..,...&Meir P..(2019).Microbial responses to warming enhance soil carbon loss following translocation across a tropical forest elevation gradient.Ecology Letters,22(11).
MLA	Nottingham A.T.,et al."Microbial responses to warming enhance soil carbon loss following translocation across a tropical forest elevation gradient".Ecology Letters 22.11(2019).