气候变化领域集成服务门户(CCPortal): Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities

CCPortal

DOI	10.1002/2017GB005787
	Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities
	Ward D.S.; Shevliakova E.; Malyshev S.; Rabin S.
发表日期	2018
ISSN	0886-6236
EISSN	1944-9224
起始页码	122
结束页码	142
卷号	32 期号:1
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.
英文关键词	global fires; land use
语种	英语
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
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129868
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
推荐引用方式 GB/T 7714	Ward D.S.,Shevliakova E.,Malyshev S.,et al. Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities[J],2018,32(1).
APA	Ward D.S.,Shevliakova E.,Malyshev S.,&Rabin S..(2018).Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities.Global Biogeochemical Cycles,32(1).
MLA	Ward D.S.,et al."Trends and Variability of Global Fire Emissions Due To Historical Anthropogenic Activities".Global Biogeochemical Cycles 32.1(2018).