气候变化领域集成服务门户(CCPortal): In Situ Tropical Peatland Fire Emission Factors and Their Variability, as Determined by Field Measurements in Peninsula Malaysia

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DOI	10.1002/2017GB005709
	In Situ Tropical Peatland Fire Emission Factors and Their Variability, as Determined by Field Measurements in Peninsula Malaysia
	Smith T.E.L.; Evers S.; Yule C.M.; Gan J.Y.
发表日期	2018
ISSN	0886-6236
EISSN	1944-9224
起始页码	18
结束页码	31
卷号	32 期号:1
英文摘要	Fires in tropical peatlands account for >25% of estimated total greenhouse gas emissions from deforestation and degradation. Despite significant global and regional impacts, our understanding of specific gaseous fire emission factors (EFs) from tropical peat burning is limited to a handful of studies. Furthermore, there is substantial variability in EFs between sampled fires and/or studies. For example, methane EFs vary by 91% between studies. Here we present new fire EFs for the tropical peatland ecosystem; the first EFs measured for Malaysian peatlands, and only the second comprehensive study of EFs in this crucial environment. During August 2015 (under El Niño conditions) and July 2016, we embarked on field campaigns to measure gaseous emissions at multiple peatland fires burning on deforested land in Southeast Pahang (2015) and oil palm plantations in North Selangor (2016), Peninsula Malaysia. Gaseous emissions were measured using open-path Fourier transform infrared spectroscopy. The IR spectra were used to retrieve mole fractions of 12 different gases present within the smoke (including carbon dioxide and methane), and these measurements used to calculate EFs. Peat samples were taken at each burn site for physicochemical analysis and to explore possible relationships between specific physicochemical properties and fire EFs. Here we present the first evidence to indicate that substrate bulk density affects methane fire EFs reported here. This novel explanation of interplume, within-biome variability, should be considered by those undertaking greenhouse gas accounting and haze forecasting in this region and is of importance to peatland management, particularly with respect to artificial compaction. ©2017. American Geophysical Union. All Rights Reserved.
英文关键词	emission factors; fire emissions; greenhouse gases; peat; peatland degradation; tropical peat
语种	英语
scopus关键词	bulk density; carbon dioxide; deforestation; degradation; emission; field method; greenhouse gas; in situ measurement; measurement method; peatland; physicochemical property; tropical region; Malaysia; Selangor; West Malaysia; Elaeis
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/129873
作者单位	Department of Geography and Environment, London School of Economics and Political Science, London, United Kingdom; Department of Geography, King's College London, London, United Kingdom; Tropical Catchment Research Initiative, Kuala Lumpur, Malaysia; School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, United Kingdom; School of Biosciences, University of Nottingham, Semenyih, Malaysia; Tropical Medicine and Biology Multidisciplinary Platform, School of Science, Monash University Malaysia, Subang Jaya, Malaysia; Global Environment Centre, Petaling Jaya, Malaysia
推荐引用方式 GB/T 7714	Smith T.E.L.,Evers S.,Yule C.M.,et al. In Situ Tropical Peatland Fire Emission Factors and Their Variability, as Determined by Field Measurements in Peninsula Malaysia[J],2018,32(1).
APA	Smith T.E.L.,Evers S.,Yule C.M.,&Gan J.Y..(2018).In Situ Tropical Peatland Fire Emission Factors and Their Variability, as Determined by Field Measurements in Peninsula Malaysia.Global Biogeochemical Cycles,32(1).
MLA	Smith T.E.L.,et al."In Situ Tropical Peatland Fire Emission Factors and Their Variability, as Determined by Field Measurements in Peninsula Malaysia".Global Biogeochemical Cycles 32.1(2018).