气候变化领域集成服务门户(CCPortal): A human-driven decline in global burned area

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DOI	10.1126/science.aal4108
	A human-driven decline in global burned area
	Andela N.; Morton D.C.; Giglio L.; Chen Y.; Van Der Werf G.R.; Kasibhatla P.S.; DeFries R.S.; Collatz G.J.; Hantson S.; Kloster S.; Bachelet D.; Forrest M.; Lasslop G.; Li F.; Mangeon S.; Melton J.R.; Yue C.; Randerson J.T.
发表日期	2017
ISSN	0036-8075
起始页码	1356
结束页码	1362
卷号	356 期号:6345
英文摘要	Fire is an essential Earth system process that alters ecosystem and atmospheric composition. Here we assessed long-term fire trends using multiple satellite data sets. We found that global burned area declined by 24.3 ± 8.8% over the past 18 years. The estimated decrease in burned area remained robust after adjusting for precipitation variability and was largest in savannas. Agricultural expansion and intensification were primary drivers of declining fire activity. Fewer and smaller fires reduced aerosol concentrations, modified vegetation structure, and increased the magnitude of the terrestrial carbon sink. Fire models were unable to reproduce the pattern and magnitude of observed declines, suggesting that they may overestimate fire emissions in future projections. Using economic and demographic variables, we developed a conceptual model for predicting fire in human-dominated landscapes. © 2017, American Association for the Advancement of Science. All rights reserved.
英文关键词	rain; aerosol; agricultural intensification; anthropogenic effect; carbon sink; concentration (composition); conceptual framework; data set; fire; global perspective; long-term change; nature-society relations; satellite data; savanna; trend analysis; aerosol; agricultural land; agricultural management; Article; biomass; carbon sink; climate; combustion; cropland; data base; ecosystem; fire; human; land use; livestock; population; precipitation; priority journal; savanna; Southeast Asia; temperate grassland; tropical rain forest; vegetation; Western Hemisphere; agriculture; carbon sequestration; climate; ecosystem; environmental protection; human activities; satellite imagery; theoretical model; Agriculture; Carbon Sequestration; Climate; Conservation of Natural Resources; Ecosystem; Fires; Human Activities; Models, Theoretical; Satellite Imagery
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/242829
作者单位	Biospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771, United States; Department of Earth System Science, University of California, Irvine, CA 92697, United States; Department of Geographical Sciences, University of Maryland, College Park, MD 20742, United States; Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, Amsterdam, Netherlands; Nicholas School of the Environment, Duke University, Durham, NC 27708, United States; Department of Ecology, Evolution, and Environmental Biology, Columbia University, New York, NY 10027, United States; Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research, Atmospheric Environmental Research, Garmisch-Partenkirchen, 82467, Germany; Max Planck Institute for Meteorology, Bundesstraße 53, Hamburg, 20164, Germany; Biological and Ecological Engineering, Oregon State University, Corvallis, OR 97331, United States; Senckenberg Biodiversity and Climate Research Institute (BiK-F), Senckenberganlage 25,...
推荐引用方式 GB/T 7714	Andela N.,Morton D.C.,Giglio L.,et al. A human-driven decline in global burned area[J],2017,356(6345).
APA	Andela N..,Morton D.C..,Giglio L..,Chen Y..,Van Der Werf G.R..,...&Randerson J.T..(2017).A human-driven decline in global burned area.Science,356(6345).
MLA	Andela N.,et al."A human-driven decline in global burned area".Science 356.6345(2017).