气候变化领域集成服务门户(CCPortal): Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °c

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DOI	10.1088/1748-9326/ab2b4b
	Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °c
	Stenzel F.; Gerten D.; Werner C.; Jagermeyr J.
发表日期	2019
ISSN	17489318
卷号	14 期号:8
英文摘要	Limiting mean global warming to well below 2 °C will probably require substantial negative emissions (NEs) within the 21st century. To achieve these, bioenergy plantations with subsequent carbon capture and storage (BECCS) may have to be implemented at a large scale. Irrigation of these plantations might be necessary to increase the yield, which is likely to put further pressure on already stressed freshwater systems. Conversely, the potential of bioenergy plantations (BPs) dedicated to achieving NEs through CO2 assimilation may be limited in regions with low freshwater availability. This paper provides a first-order quantification of the biophysical potentials of BECCS as a negative emission technology contribution to reaching the 1.5 °C warming target, as constrained by associated water availabilities and requirements. Using a global biosphere model, we analyze the availability of freshwater for irrigation of BPs designed to meet the projected NEs to fulfill the 1.5 °C target, spatially explicitly on areas not reserved for ecosystem conservation or agriculture. We take account of the simultaneous water demands for agriculture, industries, and households and also account for environmental flow requirements (EFRs) needed to safeguard aquatic ecosystems. Furthermore, we assess to what extent different forms of improved water management on the suggested BPs and on cropland may help to reduce the freshwater abstractions. Results indicate that global water withdrawals for irrigation of BPs range between ∼400 and ∼3000 km3 yr-1, depending on the scenario and the conversion efficiency of the carbon capture and storage process. Consideration of EFRs reduces the NE potential significantly, but can partly be compensated for by improved on-field water management. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	BECCS; bioenergy plantations; climate change; environmental flow requirements; irrigation; negative emissions; water demand
语种	英语
scopus关键词	Aquatic ecosystems; Carbon capture; Climate change; Conservation; Global warming; Irrigation; Water management; BECCS; Bioenergy plantation; Emission technology; Environmental flow; Freshwater systems; Water availability; Water demand; Water withdrawal; Water; aquatic ecosystem; bioenergy; climate change; freshwater; global warming; irrigation system; water demand; water management; Nes
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/154485
作者单位	Potsdam Institute for Climate Impact Research, Potsdam, D-14473, Germany; Department of Geography, Humboldt-Universitat zu Berlin, Berlin, D-12489, Germany; Integrative Research Institute on Transformations of Human-Environment Systems, Berlin, D-10117, Germany; Department of Computer Science, University of Chicago, Chicago, IL 60637, United States; NASA Goddard Institute for Space Studies, New York, NY 10025, United States
推荐引用方式 GB/T 7714	Stenzel F.,Gerten D.,Werner C.,et al. Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °c[J],2019,14(8).
APA	Stenzel F.,Gerten D.,Werner C.,&Jagermeyr J..(2019).Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °c.Environmental Research Letters,14(8).
MLA	Stenzel F.,et al."Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 °c".Environmental Research Letters 14.8(2019).