气候变化领域集成服务门户(CCPortal): Global convergence in the temperature sensitivity of respiration at ecosystem level

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DOI	10.1126/science.1189587
	Global convergence in the temperature sensitivity of respiration at ecosystem level
	Mahecha M.D.; Reichstein M.; Carvalhais N.; Lasslop G.; Lange H.; Seneviratne S.I.; Vargas R.; Ammann C.; Arain M.A.; Cescatti A.; Janssens I.A.; Migliavacca M.; Montagnani L.; Richardson A.D.
发表日期	2010
ISSN	0036-8075
起始页码	838
结束页码	840
卷号	329 期号:5993
英文摘要	The respiratory release of carbon dioxide (CO2) from the land surface is a major flux in the global carbon cycle, antipodal to photosynthetic CO2 uptake. Understanding the sensitivity of respiratory processes to temperature is central for quantifying the climate-carbon cycle feedback. We approximated the sensitivity of terrestrial ecosystem respiration to air temperature (Q10) across 60 FLUXNET sites with the use of a methodology that circumvents confounding effects. Contrary to previous findings, our results suggest that Q10 is independent of mean annual temperature, does not differ among biomes, and is confined to values around 1.4 ± 0.1. The strong relation between photosynthesis and respiration, by contrast, is highly variable among sites. The results may partly explain a less pronounced climate-carbon cycle feedback than suggested by current carbon cycle climate models.
英文关键词	annual cycle; carbon cycle; carbon dioxide; ecosystem modeling; global climate; photosynthesis; respiration; terrestrial ecosystem; air temperature; article; biome; breathing; carbon cycle; climate; ecosystem; photosynthesis; priority journal; temperature sensitivity; Carbon; Carbon Dioxide; Cell Respiration; Climate; Ecological and Environmental Processes; Ecosystem; Models, Biological; Models, Statistical; Photosynthesis; Plants; Soil; Soil Microbiology; Temperature
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/244624
作者单位	Max Planck Institute for Biogeochemistry, 07745 Jena, Germany; Institute for Atmospheric and Climate Science, ETH Zürich, Universitätsstrasse 16, 8092 Zürich, Switzerland; Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; Norsk Institutt for Skog og Landskap, N-1431 Ås, Norway; Department of Environmental Science, Policy and Management, University of California, Berkeley, CA 94720, United States; Agroscope ART, Federal Research Station, Reckenholzstr. 191, CH-8046 Zürich, Switzerland; McMaster Centre for Climate Change, McMaster University, Hamilton, ON L8S 4L8, Canada; European Commission, Joint Research Center, Institute for Environment and Sustainability, I-21027 Ispra, Italy; Department of Biology, University of Antwerpen, Universiteitsplein 1, 2610 Wilrijk, Belgium; Remote Sensing of Environmental Dynamics Laboratory, DISAT, University of Milano-Bicocca, 20126 Milano, Italy; Servizi Forestali, Agenzia Per l'Ambiente, Provincia Autonoma di Bolzano, 3910...
推荐引用方式 GB/T 7714	Mahecha M.D.,Reichstein M.,Carvalhais N.,et al. Global convergence in the temperature sensitivity of respiration at ecosystem level[J],2010,329(5993).
APA	Mahecha M.D..,Reichstein M..,Carvalhais N..,Lasslop G..,Lange H..,...&Richardson A.D..(2010).Global convergence in the temperature sensitivity of respiration at ecosystem level.Science,329(5993).
MLA	Mahecha M.D.,et al."Global convergence in the temperature sensitivity of respiration at ecosystem level".Science 329.5993(2010).