气候变化领域集成服务门户(CCPortal): Is wood pellet-based electricity less carbon-intensive than coal-based electricity? It depends on perspectives, baselines, feedstocks, and forest management practices

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DOI	10.1088/1748-9326/aaf937
	Is wood pellet-based electricity less carbon-intensive than coal-based electricity? It depends on perspectives, baselines, feedstocks, and forest management practices
	Dwivedi P.; Khanna M.; Fuller M.
发表日期	2019
ISSN	17489318
卷号	14 期号:2
英文摘要	Some studies suggest that the carbon intensity of electricity generated in the United Kingdom by using imported wood pellets from the southern United States is higher than that of coal-based electricity, whereas other studies suggest that the use of wood pellet-based electricity reduces carbon emissions significantly, relative to coal-based electricity. We developed the Forest Bioenergy Carbon Accounting Model (ForBioCAM 1.0) to analyze factors that influence the carbon intensity of wood pellet-based electricity, using a common set of assumptions and the same system boundary. We show that widely differing assessments of the carbon intensity of wood pellet-based electricity depend on the choice of forest management perspectives (landscape or stand), baselines (no harvest, or harvesting for the manufacture of traditional finished wood products), feedstocks (whole trees, pulpwood, or logging residues), forest management practices (change in rotation age), and the duration of the analysis itself. Unlike with a stand perspective, we demonstrate conditions under which a landscape perspective results in carbon savings net of avoided emissions from coal-based electricity. Our results also suggest that the two perspectives of forest management converge in their assessment of the positive carbon effects of various feedstock types used to manufacture wood pellets relative to a no-harvest baseline, and that the use of whole trees for wood pellets results in net carbon savings after a break-even period of about three years relative to a no-harvest scenario. The results of this study can guide future policy deliberations on the use of wood pellets as a renewable energy source worldwide. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	carbon intensity; climate change; environmental policy; forest management; wood pellets
语种	英语
scopus关键词	Carbon; Climate change; Coal; Environmental protection; Feedstocks; Harvesting; Manufacture; Pelletizing; Renewable energy resources; Wood; Avoided emissions; Carbon accounting model; Carbon intensity; Environmental policy; Finished wood products; Forest management practices; Renewable energy source; Wood pellet; Forestry; alternative energy; baseline conditions; carbon footprint; climate change; electricity generation; energy efficiency; forest management; fuelwood; harvesting; Carbon; Coal; Harvesting; Manufacture; Pelleting; Wood; United Kingdom; United States
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154708
作者单位	Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, United States; Department of Agricultural and Consumer Economics, University of Illinois, Urbana, IL 61801, United States; Terry College of Business, University of Georgia, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Dwivedi P.,Khanna M.,Fuller M.. Is wood pellet-based electricity less carbon-intensive than coal-based electricity? It depends on perspectives, baselines, feedstocks, and forest management practices[J],2019,14(2).
APA	Dwivedi P.,Khanna M.,&Fuller M..(2019).Is wood pellet-based electricity less carbon-intensive than coal-based electricity? It depends on perspectives, baselines, feedstocks, and forest management practices.Environmental Research Letters,14(2).
MLA	Dwivedi P.,et al."Is wood pellet-based electricity less carbon-intensive than coal-based electricity? It depends on perspectives, baselines, feedstocks, and forest management practices".Environmental Research Letters 14.2(2019).