Widespread non-microbial methane production by organic compounds and the impact of environmental stresses

doi:10.1016/j.earscirev.2013.10.001

	Widespread non-microbial methane production by organic compounds and the impact of environmental stresses
	Wang, Zhi-Ping ; Chang, Scott X.; Chen, Hua 2; Han, Xing-Guo
	2013
发表期刊	EARTH-SCIENCE REVIEWS
ISSN	0012-8252
卷号	127 页码:193-202
摘要	Non-microbial methane (CH4) production is more pervasive in nature than previously thought, but it has received less attention than microbial CH4 production. Non-microbial CH4 is produced commonly by an instantaneous reaction involving organic compounds under environmental stresses, without enzymatic catalysis by methanogenic archaea. In addition to the widely known sources of non-microbial CH4, i.e., energy usage, biomass burning, and geological emissions, non-microbial CH4 emissions from plants, animals, fungi, soils, and surface waters of oceans have been recently reported. In most ecosystems, microbial and non-microbial CH4 production co-occur and/or alternate depending on the conditions, and thus CH4 emission in terrestrial ecosystems represents a mixture of microbial and non-microbial CH4 production. Global CH4 emission was estimated at 582 Tg yr(-1) over the 2000-2004 period, where geological sources of non-microbial CH4 were not included. When geological sources are included, total emissions will likely not increase but its partition among the individual sources would change, and emissions of non-microbial CH4 might account for approximately 40% of the global total. This fraction would slightly increase if non-microbial CH4 emissions of plants, animals, fungi and soils in terrestrial ecosystems and surface waters of oceans are considered, although no global estimates for those fractions currently exist The stable isotope signatures of C and H in CH4 may be a useful tool for identifying the source of CH4. Based on this review of the literature, we conclude that non-microbial CH4 production may occur in any organism or dead organic matter when organic compounds are exposed to environmental stresses. (C) 2013 Elsevier B.V. All rights reserved.
关键词	CH4 source Methyl group Organic matter Organism Global warming
学科领域	Geosciences, Multidisciplinary
DOI	10.1016/j.earscirev.2013.10.001
收录类别	SCI
语种	英语
WOS关键词	ATMOSPHERIC METHANE ; ULTRAVIOLET-RADIATION ; TERRESTRIAL PLANTS ; CARBON-DIOXIDE ; ASCORBIC-ACID ; TRACE GASES ; EMISSIONS ; BIOMASS ; SOIL ; TEMPERATURE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000328871100009
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1872-6828
资助机构	National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Natural Science and Engineering Council of Canada (NSERC)(Natural Sciences and Engineering Research Council of Canada (NSERC)) ; Rangeland Research Institute at the University of Alberta ; State Key Laboratory of Vegetation and Environmental Change
作者邮箱	Chang, Scott X/G-2029-2011 ; Han, Xingguo/K-7552-2016
引用统计	被引频次：45[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28106
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Wang, Zhi-Ping; Chang, Scott X.] Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2E3, Canada 3.Univ Illinois, Dept Biol, Springfield, IL 62703 USA 4.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhi-Ping,Chang, Scott X.,Chen, Hua,et al. Widespread non-microbial methane production by organic compounds and the impact of environmental stresses[J]. EARTH-SCIENCE REVIEWS,2013,127:193-202.
APA	Wang, Zhi-Ping,Chang, Scott X.,Chen, Hua,&Han, Xing-Guo.(2013).Widespread non-microbial methane production by organic compounds and the impact of environmental stresses.EARTH-SCIENCE REVIEWS,127,193-202.
MLA	Wang, Zhi-Ping,et al."Widespread non-microbial methane production by organic compounds and the impact of environmental stresses".EARTH-SCIENCE REVIEWS 127(2013):193-202.

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