globalchange  > 气候变化事实与影响
DOI: 10.1002/2017GB005787
Scopus记录号: 2-s2.0-85040709064
论文题名:
Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities
作者: Ward D; S; , Shevliakova E; , Malyshev S; , Rabin S
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2018
卷: 32, 期:1
起始页码: 122
结束页码: 142
语种: 英语
英文关键词: global fires ; land use
Scopus关键词: annual variation ; burning ; carbon emission ; emission inventory ; fire ; forest canopy ; global perspective ; historical record ; human activity ; land cover ; land use ; lightning ; population growth ; software ; spatial distribution ; trend analysis ; South Asia ; Sub-Saharan Africa
英文摘要: Globally, fires are a major source of carbon from the terrestrial biosphere to the atmosphere, occurring on a seasonal cycle and with substantial interannual variability. To understand past trends and variability in sources and sinks of terrestrial carbon, we need quantitative estimates of global fire distributions. Here we introduce an updated version of the Fire Including Natural and Agricultural Lands model, version 2 (FINAL.2), modified to include multiday burning and enhanced fire spread rate in forest crowns. We demonstrate that the improved model reproduces the interannual variability and spatial distribution of fire emissions reported in present-day remotely sensed inventories. We use FINAL.2 to simulate historical (post-1700) fires and attribute past fire trends and variability to individual drivers: land use and land cover change, population growth, and lightning variability. Global fire emissions of carbon increase by about 10% between 1700 and 1900, reaching a maximum of 3.4 Pg C yr−1 in the 1910s, followed by a decrease to about 5% below year 1700 levels by 2010. The decrease in emissions from the 1910s to the present day is driven mainly by land use change, with a smaller contribution from increased fire suppression due to increased human population and is largest in Sub-Saharan Africa and South Asia. Interannual variability of global fire emissions is similar in the present day as in the early historical period, but present-day wildfires would be more variable in the absence of land use change. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77681
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作者单位: Program in Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, United States; Institute of Meteorology and Climate Research/Atmospheric Environmental Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany

Recommended Citation:
Ward D,S,, Shevliakova E,et al. Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities[J]. Global Biogeochemical Cycles,2018-01-01,32(1)
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