气候变化领域集成服务门户(CCPortal): Sustainable land use and viability of biojet fuels

CCPortal

DOI	10.1038/s41893-022-00990-w
	Sustainable land use and viability of biojet fuels
	Aragon, Nazli Z. Uludere; Parker, Nathan C.; VanLoocke, Andy; Bagley, Justin; Wang, Meng; Georgescu, Matei
发表日期	2023
ISSN	2398-9629
起始页码	158
结束页码	+
卷号	6 期号:2 页码:14
英文摘要	Decarbonizing aviation requires, among other strategies, use of low-carbon liquid fuels, since electrified propulsion of large aircraft is not yet viable. However, commercialization of such 'sustainable aviation fuels' is lagging due to uncertainty about their potential. Here, we integrate land-use assessment, hydroclimate and ecosystem modelling and economic optimization in a systems framework to better characterize the biojet-fuel potential of cellulosic feedstocks. Planting 23.2 Mha of marginal agricultural lands in the United States-roughly the land area of Wyoming-with the grass miscanthus satisfies the country's projected 2040 jet-fuel demand (30 billion gallons yr(-1)) at an average cost of US$4.1 gallon(-1). Centred in the Midwest region, this marginal land base is a mix of croplands (7.2 Mha) and non-croplands (16 Mha), whose conversion into miscanthus delivers productive biomass, regional cooling without soil moisture loss and the lowest system greenhouse gas emissions (at US$50 tCO(2)e(-1) carbon price). It is unsustainable to source the same quantity of miscanthus biomass through marginal land conversions in the Plains region. Sustainability considerations generate different land conversion patterns than expected from a purely economic vantage point. Integrated approaches, such as used here, are imperative to realistically evaluate the sustainability of bio-based alternative feedstocks. Aviation is a major contributor to climate change. This study assesses the potential of bioenergy crops planted in the US Midwest to meet projected US jet-fuel demand in 2040, finding that planting roughly 23.2 million hectares of marginal land with miscanthus would meet this need.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000883302400004
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272814
作者单位	Arizona State University; Arizona State University-Tempe; Arizona State University; Arizona State University-Tempe; Arizona State University; Arizona State University-Tempe; Iowa State University; Arizona State University; Arizona State University-Tempe; Environmental Defense Fund
推荐引用方式 GB/T 7714	Aragon, Nazli Z. Uludere,Parker, Nathan C.,VanLoocke, Andy,et al. Sustainable land use and viability of biojet fuels[J],2023,6(2):14.
APA	Aragon, Nazli Z. Uludere,Parker, Nathan C.,VanLoocke, Andy,Bagley, Justin,Wang, Meng,&Georgescu, Matei.(2023).Sustainable land use and viability of biojet fuels.NATURE SUSTAINABILITY,6(2),14.
MLA	Aragon, Nazli Z. Uludere,et al."Sustainable land use and viability of biojet fuels".NATURE SUSTAINABILITY 6.2(2023):14.