气候变化领域集成服务门户(CCPortal): Increasing impact of warm droughts on northern ecosystem productivity over recent decades

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DOI	10.1038/s41558-021-01112-8
	Increasing impact of warm droughts on northern ecosystem productivity over recent decades
	Gampe D.; Zscheischler J.; Reichstein M.; O’Sullivan M.; Smith W.K.; Sitch S.; Buermann W.
发表日期	2021
ISSN	1758-678X
起始页码	772
结束页码	779
卷号	11 期号:9
英文摘要	Climate extremes such as droughts and heatwaves have a large impact on terrestrial carbon uptake by reducing gross primary production (GPP). While the evidence for increasing frequency and intensity of climate extremes over the last decades is growing, potential systematic adverse shifts in GPP have not been assessed. Using observationally-constrained and process-based model data, we estimate that particularly northern midlatitude ecosystems experienced a +10.6% increase in negative GPP extremes in the period 2000–2016 compared to 1982–1998. We attribute this increase predominantly to a greater impact of warm droughts, in particular over northern temperate grasslands (+95.0% corresponding mean increase) and croplands (+84.0%), in and after the peak growing season. These results highlight the growing vulnerability of ecosystem productivity to warm droughts, implying increased adverse impacts of these climate extremes on terrestrial carbon sinks as well as a rising pressure on global food security. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237255
作者单位	Institute of Geography, Augsburg University, Augsburg, Germany; Department of Geography, Ludwig Maximilian University of Munich, Munich, Germany; Climate and Environmental Physics, University of Bern, Bern, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland; Department of Computational Hydrosystems, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany; Max Planck Institute for Biogeochemistry, Jena, Germany; College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom; School of Natural Resources and the Environment, University of Arizona, Tucson, AZ, United States; College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom; Institute of the Environment and Sustainability, University of California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Gampe D.,Zscheischler J.,Reichstein M.,et al. Increasing impact of warm droughts on northern ecosystem productivity over recent decades[J],2021,11(9).
APA	Gampe D..,Zscheischler J..,Reichstein M..,O’Sullivan M..,Smith W.K..,...&Buermann W..(2021).Increasing impact of warm droughts on northern ecosystem productivity over recent decades.Nature Climate Change,11(9).
MLA	Gampe D.,et al."Increasing impact of warm droughts on northern ecosystem productivity over recent decades".Nature Climate Change 11.9(2021).