气候变化领域集成服务门户(CCPortal): Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world

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DOI	10.1126/science.aan2874
	Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world
	Melillo J.M.; Frey S.D.; DeAngelis K.M.; Werner W.J.; Bernard M.J.; Bowles F.P.; Pold G.; Knorr M.A.; Grandy A.S.
发表日期	2017
ISSN	0036-8075
起始页码	101
结束页码	105
卷号	358 期号:6359
英文摘要	In a 26-year soil warming experiment in a mid-latitude hardwood forest, we documented changes in soil carbon cycling to investigate the potential consequences for the climate system. We found that soil warming results in a four-phase pattern of soil organic matter decay and carbon dioxide fluxes to the atmosphere, with phases of substantial soil carbon loss alternating with phases of no detectable loss. Several factors combine to affect the timing, magnitude, and thermal acclimation of soil carbon loss. These include depletion of microbially accessible carbon pools, reductions in microbial biomass, a shift in microbial carbon use efficiency, and changes in microbial community composition. Our results support projections of a long-term, self-reinforcing carbon feedback from mid-latitude forests to the climate system as the world warms. © 2017, American Association for the Advancement of Science. All rights reserved.
英文关键词	carbon; small subunit ribosomal RNA; soil organic matter; carbon; carbon dioxide; carbon sequestration; experimental study; microbial activity; microbial community; nutrient use efficiency; soil carbon; soil organic matter; warming; Article; carbon cycling; carbon dynamics; climate change; enzyme assay; feedback system; latitude; microbial biomass; microbial community; microbial respiration; priority journal; root respiration; soil; soil respiration; soil temperature; surface soil; temperature acclimatization; warming; carbon cycle; chemistry; climate; forest; greenhouse effect; microbiology; microflora; soil; Carbon; Carbon Cycle; Climate; Forests; Global Warming; Microbiota; Soil; Soil Microbiology
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244736
作者单位	Ecosystems Center, Marine Biological Laboratory, Woods Hole, MA 02543, United States; Department of Natural Resources and the Environment, University of New Hampshire, Durham, NH 03824, United States; Department of Microbiology, University of Massachusetts, Amherst, MA 01003, United States; Research Designs, Lyme, NH 03768, United States; Graduate Program in Organismic and Evolutionary Biology, University of Massachusetts, Amherst, MA 01003, United States
推荐引用方式 GB/T 7714	Melillo J.M.,Frey S.D.,DeAngelis K.M.,et al. Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world[J],2017,358(6359).
APA	Melillo J.M..,Frey S.D..,DeAngelis K.M..,Werner W.J..,Bernard M.J..,...&Grandy A.S..(2017).Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world.Science,358(6359).
MLA	Melillo J.M.,et al."Long-term pattern and magnitude of soil carbon feedback to the climate system in a warming world".Science 358.6359(2017).