气候变化领域集成服务门户(CCPortal): Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems

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DOI	10.1126/science.aac4971
	Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems
	Forkel M.; Carvalhais N.; Rödenbeck C.; Keeling R.; Heimann M.; Thonicke K.; Zaehle S.; Reichstein M.
发表日期	2016
ISSN	0036-8075
起始页码	696
结束页码	699
卷号	351 期号:6274
英文摘要	Atmospheric monitoring of high northern latitudes (above 40°N) has shown an enhanced seasonal cycle of carbon dioxide (CO2) since the 1960s, but the underlying mechanisms are not yet fully understood. The much stronger increase in high latitudes relative to low ones suggests that northern ecosystems are experiencing large changes in vegetation and carbon cycle dynamics. We found that the latitudinal gradient of the increasing CO2 amplitude is mainly driven by positive trends in photosynthetic carbon uptake caused by recent climate change and mediated by changing vegetation cover in northern ecosystems. Our results underscore the importance of climate-vegetation-carbon cycle feedbacks at high latitudes; moreover, they indicate that in recent decades, photosynthetic carbon uptake has reacted much more strongly to warming than have carbon release processes. © 2016, American Association for the Advancement of Science. All rights reserved.
英文关键词	carbon; carbon dioxide; carbon dioxide; carbon cycle; carbon dioxide; climate change; latitude; latitudinal gradient; photosynthesis; vegetation cover; warming; Article; carbon cycle; climate change; dynamics; ecosystem; latitude; monitoring; nonhuman; plant; priority journal; vegetation; warming; atmosphere; carbon cycle; climate change; ecosystem; environmental monitoring; metabolism; photosynthesis; season; Atmosphere; Carbon Cycle; Carbon Dioxide; Climate Change; Ecosystem; Environmental Monitoring; Photosynthesis; Plants; Seasons
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/243720
作者单位	Max Planck Institute for Biogeochemistry, Jena, 07745, Germany; CENSE, Departamento de Ciências e Engenharia Do Ambiente, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, Portugal; Scripps Institution of Oceanography, San Diego, CA 92093, United States; Department of Physical Sciences, University of Helsinki, Helsinki, Finland; Potsdam Institute for Climate Impact Research, Potsdam, 14473, Germany; Michael-Stifel-Center Jena for Data-driven and Simulation Science, Jena, 07743, Germany; Department of Geodesy and Geoinformation, Technische Universität Wien, Vienna, 1040, Austria
推荐引用方式 GB/T 7714	Forkel M.,Carvalhais N.,Rödenbeck C.,et al. Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems[J],2016,351(6274).
APA	Forkel M..,Carvalhais N..,Rödenbeck C..,Keeling R..,Heimann M..,...&Reichstein M..(2016).Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems.Science,351(6274).
MLA	Forkel M.,et al."Enhanced seasonal CO2 exchange caused by amplified plant productivity in northern ecosystems".Science 351.6274(2016).