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DOI | 10.1088/1748-9326/ab2b4b |
Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 degrees C | |
Stenzel, Fabian1,2,3; Gerten, Dieter1,2,3; Werner, Constanze1,2,3; Jaegermeyr, Jonas1,4,5 | |
2019-08-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; USA |
英文摘要 | Limiting mean global warming to well below 2 degrees Cwill 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 degrees 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 degrees C target, spatially explicitly on areas not reserved for ecosystem conservation or agriculture. Wetake 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 similar to 400 and similar to 3000 km(3) yr(-1), depending on the scenario and the conversion efficiency of the carbon capture and storage process. Consideration of EFRs reduces theNE potential significantly, but can partly be compensated for by improved on-field water management. |
英文关键词 | BECCS water demand irrigation negative emissions environmental flow requirements climate change bioenergy plantations |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476829600001 |
WOS关键词 | TRADE-OFFS ; LAND-USE ; VEGETATION ; INCREASE ; REMOVAL ; SCIENCE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185610 |
专题 | 气候变化 |
作者单位 | 1.Potsdam Inst Climate Impact Res, D-14473 Potsdam, Germany; 2.Humboldt Univ, Dept Geog, D-12489 Berlin, Germany; 3.Integrat Res Inst Transformat Human Environm Syst, D-10117 Berlin, Germany; 4.Univ Chicago, Dept Comp Sci, Chicago, IL 60637 USA; 5.NASA, Goddard Inst Space Studies, New York, NY 10025 USA |
推荐引用方式 GB/T 7714 | Stenzel, Fabian,Gerten, Dieter,Werner, Constanze,et al. Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 degrees C[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(8). |
APA | Stenzel, Fabian,Gerten, Dieter,Werner, Constanze,&Jaegermeyr, Jonas.(2019).Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 degrees C.ENVIRONMENTAL RESEARCH LETTERS,14(8). |
MLA | Stenzel, Fabian,et al."Freshwater requirements of large-scale bioenergy plantations for limiting global warming to 1.5 degrees C".ENVIRONMENTAL RESEARCH LETTERS 14.8(2019). |
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