气候变化领域集成服务门户(CCPortal): Evaluating biomass sustainability: Why below-ground carbon sequestration matters

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DOI	10.1016/j.jclepro.2024.140677
	Evaluating biomass sustainability: Why below-ground carbon sequestration matters
	Forfora, Naycari; Azuaje, Ivana; Vivas, Keren A.; Vera, Ramon E.; Brito, Amelys; Venditti, Richard; Kelley, Stephen; Tu, Qingshi; Woodley, Alex; Gonzalez, Ronalds
发表日期	2024
ISSN	0959-6526
EISSN	1879-1786
起始页码	439
卷号	439
英文摘要	Biomass, as a raw material, has been identified as a crucial component of decarbonization strategies to mitigate climate change. Decisions on which biomass should be targeted for different purposes are dependent on variables such as availability, chemical composition, and sustainability. Consumer perception often positions non-wood sources, such as bamboo, as environmentally preferable feedstocks for fiber-based product production. Yet, this perceived environmental benefit lacks robust scientific substantiation and standardized methodologies. This study addresses this gap by conducting a cradle-to-gate life cycle assessment (LCA) of twelve biomass production systems encompassing tree plantations, dedicated crops, and agricultural residues for energy and bioproducts manufacture. The evaluated feedstocks include southern softwood, wheat straw, rice straw, rice husk, hemp hurd, sugarcane bagasse, switchgrass, biomass sorghum (United States), eucalyptus (Brazil), bamboo (China), and northern softwood (Canada). Incorporating a critical yet often overlooked factor, this LCA integrates the potential soil organic carbon sequestration (SOC) via below-ground biomass for each biomass type. This consideration significantly alters the estimated carbon intensity per ton of feedstock, potentially reshaping sustainability perceptions as certain systems emerge as carbon sinks. From a cradle-to-farm gate perspective, the assessed global warming potential for biomass production spans 12-245 kg CO2eq per oven -dry ton (ODt), factoring only anthropogenic emissions. However, when accounting for SOC sequestration, the range shifts to -170 to 228 kg CO2eq per ODt, highlighting the potential role of biomass to act as carbon sink systems. By illuminating the dynamic influence of SOC sequestration, this study contributes to a more comprehensive understanding of biomass-related carbon emissions, shedding light on pathways to mitigate environmental impact.
英文关键词	Life cycle assessment; Biomass production; Soil organic carbon sequestration; Carbon footprint; Net zero emissions
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:001172750700001
来源期刊	JOURNAL OF CLEANER PRODUCTION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289576
作者单位	North Carolina State University; University of British Columbia; North Carolina State University
推荐引用方式 GB/T 7714	Forfora, Naycari,Azuaje, Ivana,Vivas, Keren A.,et al. Evaluating biomass sustainability: Why below-ground carbon sequestration matters[J],2024,439.
APA	Forfora, Naycari.,Azuaje, Ivana.,Vivas, Keren A..,Vera, Ramon E..,Brito, Amelys.,...&Gonzalez, Ronalds.(2024).Evaluating biomass sustainability: Why below-ground carbon sequestration matters.JOURNAL OF CLEANER PRODUCTION,439.
MLA	Forfora, Naycari,et al."Evaluating biomass sustainability: Why below-ground carbon sequestration matters".JOURNAL OF CLEANER PRODUCTION 439(2024).