气候变化领域集成服务门户(CCPortal): The land–energy–water nexus of global bioenergy potentials from abandoned cropland

CCPortal

DOI	10.1038/s41893-020-00680-5
	The land–energy–water nexus of global bioenergy potentials from abandoned cropland
	Næss J.S.; Cavalett O.; Cherubini F.
发表日期	2021
ISSN	2398-9629
起始页码	525
结束页码	536
卷号	4 期号:6
英文摘要	Bioenergy is a key option in climate change mitigation scenarios. Growing perennial grasses on recently abandoned cropland is a near-term strategy for gradual bioenergy deployment with reduced risks for food security and the environment. However, the extent of global abandoned cropland, bioenergy potentials and management requirements are unclear. Here we integrate satellite-derived land cover maps with a yield model to investigate the land–energy–water nexus of global bioenergy potentials. We identified 83 million hectares of abandoned cropland between 1992 and 2015, corresponding to 5% of today’s cropland area. Bioenergy potentials are 6–39 exajoules per year (11–68% of today’s bioenergy demand), depending on multiple local and management factors. About 20 exajoules per year can be achieved by increasing today’s global cropland area and water use by 3% and 8%, respectively, and without production inside biodiversity hotspots or irrigation in water-scarce areas. The consideration of context-specific practices and multiple environmental dimensions can mitigate trade-offs of bioenergy deployment. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Biodiversity; Economic and social effects; Food supply; Abandoned croplands; Bioenergy potential; Climate change mitigation; Food security; Land cover maps; Management factors; Perennial grass; Yield modeling; Climate change
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/249790
作者单位	Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway
推荐引用方式 GB/T 7714	Næss J.S.,Cavalett O.,Cherubini F.. The land–energy–water nexus of global bioenergy potentials from abandoned cropland[J],2021,4(6).
APA	Næss J.S.,Cavalett O.,&Cherubini F..(2021).The land–energy–water nexus of global bioenergy potentials from abandoned cropland.Nature Sustainability,4(6).
MLA	Næss J.S.,et al."The land–energy–water nexus of global bioenergy potentials from abandoned cropland".Nature Sustainability 4.6(2021).