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DOI	10.1029/2020GL089373
	Global Methyl Halide Emissions From Rapeseed (Brassica napus) Using Life Cycle Measurements
	Jiao Y.; Acdan J.; Xu R.; Deventer M.J.; Zhang W.; Rhew R.C.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	Global budgets of methyl halides are not balanced between currently identified sources and sinks. Among biological sources, rapeseed is regarded as the second largest terrestrial source of CH3Br, extrapolated from laboratory-based incubations and limited field measurements. This study analyzes the CH3Br budget from rapeseed (Brassica napus “Empire”), using field-based life cycle measurements, yielding a globally scaled emission rate of 2.8 ± 0.7 Gg year−1. Though this verifies that rapeseed is a significant global source, it is just half of the previous estimation, even after accounting for the doubling of global annual rapeseed production since then. The ozone-depleting potential of rapeseed is further sustained through CH3Cl and CH3I emissions, which were measured for the first time and scaled to 5.3 ± 1.3 and 4.0 ± 0.8 Gg year−1 globally. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Bromine compounds; Budget control; Chlorine compounds; Biological sources; Brassica napus; Emission rates; Field measurement; Global budget; Global sources; Methyl halides; Ozone depleting potentials; Oilseeds; crop production; emission; global change; halide; herb; life cycle; measurement method; source-sink dynamics; Brassica napus
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169648
作者单位	Department of Geography, University of California Berkeley, Berkeley, CA, United States; Department of Environmental Science, Policy and Management, University of California Berkeley, Berkeley, CA, United States; Anhui Province Key Laboratory of Polar Environment and Global Change, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; Now at Bioclimatology, University of Göttingen, Göttingen, Germany
推荐引用方式 GB/T 7714	Jiao Y.,Acdan J.,Xu R.,et al. Global Methyl Halide Emissions From Rapeseed (Brassica napus) Using Life Cycle Measurements[J],2020,47(19).
APA	Jiao Y.,Acdan J.,Xu R.,Deventer M.J.,Zhang W.,&Rhew R.C..(2020).Global Methyl Halide Emissions From Rapeseed (Brassica napus) Using Life Cycle Measurements.Geophysical Research Letters,47(19).
MLA	Jiao Y.,et al."Global Methyl Halide Emissions From Rapeseed (Brassica napus) Using Life Cycle Measurements".Geophysical Research Letters 47.19(2020).