气候变化领域集成服务门户(CCPortal): Temperature thresholds of ecosystem respiration at a global scale

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DOI	10.1038/s41559-021-01398-z
	Temperature thresholds of ecosystem respiration at a global scale
	Johnston A.S.A.; Meade A.; Ard? J.; Arriga N.; Black A.; Blanken P.D.; Bonal D.; Brümmer C.; Cescatti A.; Du?ek J.; Graf A.; Gioli B.; Goded I.; Gough C.M.; Ikawa H.; Jassal R.; Kobayashi H.; Magliulo V.; Manca G.; Montagnani L.; Moyano F.E.; Olesen J.E.; Sachs T.; Shao C.; Tagesson T.; Wohlfahrt G.; Wolf S.; Woodgate W.; Varlagin A.; Venditti C.
发表日期	2021
ISSN	2397-334X
起始页码	487
结束页码	494
卷号	5 期号:4
英文摘要	Ecosystem respiration is a major component of the global terrestrial carbon cycle and is strongly influenced by temperature. The global extent of the temperature–ecosystem respiration relationship, however, has not been fully explored. Here, we test linear and threshold models of ecosystem respiration across 210 globally distributed eddy covariance sites over an extensive temperature range. We find thresholds to the global temperature–ecosystem respiration relationship at high and low air temperatures and mid soil temperatures, which represent transitions in the temperature dependence and sensitivity of ecosystem respiration. Annual ecosystem respiration rates show a markedly reduced temperature dependence and sensitivity compared to half-hourly rates, and a single mid-temperature threshold for both air and soil temperature. Our study indicates a distinction in the influence of environmental factors, including temperature, on ecosystem respiration between latitudinal and climate gradients at short (half-hourly) and long (annual) timescales. Such climatological differences in the temperature sensitivity of ecosystem respiration have important consequences for the terrestrial net carbon sink under ongoing climate change. ? 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	breathing; carbon cycle; ecosystem; soil; temperature; Carbon Cycle; Ecosystem; Respiration; Soil; Temperature
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256993
作者单位	School of Water, Energy and Environment, Cranfield University, Bedford, United Kingdom; School of Biological Sciences, University of Reading, Reading, United Kingdom; Physical Geography and Ecosystem Science, Lund University, Lund, Sweden; Joint Research Centre, European Commission, Ispra, Italy; Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada; Department of Geography, University of Colorado, Boulder, CO, United States; Université de Lorraine, AgroParisTech, INRAE, UMR Silva, Nancy, France; Thünen Institute of Climate-Smart Agriculture, Braunschweig, Germany; Global Change Research Institute of the Czech Academy of Sciences, Brno, Czech Republic; Institute for Bio- and Geosciences: Agrosphere (IBG-3), Forschungszentrum Jülich, Jülich, Germany; Institute of Bioeconomy, CNR, Firenze, Italy; Department of Biology, Virginia Commonwealth University, Richmond, VA, United States; Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization...
推荐引用方式 GB/T 7714	Johnston A.S.A.,Meade A.,Ard? J.,et al. Temperature thresholds of ecosystem respiration at a global scale[J],2021,5(4).
APA	Johnston A.S.A..,Meade A..,Ard? J..,Arriga N..,Black A..,...&Venditti C..(2021).Temperature thresholds of ecosystem respiration at a global scale.Nature Ecology & Evolution,5(4).
MLA	Johnston A.S.A.,et al."Temperature thresholds of ecosystem respiration at a global scale".Nature Ecology & Evolution 5.4(2021).