DOI: 10.2166/wcc.2013.056
论文题名: Estimation of the water footprint of sugarcane in Mexico: Is ethanol production an environmentally feasible fuel option?
作者: Haro M.E. ; Navarro I. ; Thompson R. ; Jimenez B.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2014
卷: 5, 期: 1 起始页码: 70
结束页码: 80
语种: 英语
英文关键词: Biofuel
; Climate change
; Ethanol
; Sugarcane
; Water footprint
英文摘要: Energy policies are taken throughout the world to reduce fossil fuel emissions from transportation sources. Agriculturally based biofuels are currently the only alternatives to liquid fossil fuels. However, as biofuel production spreads, so too do its cascading impacts on environment and food security. This paper analyzes the impact of Mexican ethanol-sugarcane policy on water resources. The water footprint of sugarcane (WFsc) was quantified for an agricultural region in Jalisco, Mexico, and used to estimate anthropologic water demand and stress index. This analysis was performed using historical climate data, and for projected changes under scenarios A2 and B1, using ECHAM and GFDL models. The average historical water footprint of sugarcane was estimated as 104.9 m3/ton, total average water demand as 152.3 Mm3/year and a historical water scarcity index as 59%. Under climate change, the footprint might increase 2% by 2020 and 3-4% by 2050. The availablewater is predicted to fall 4-7% by 2020, and 6-8% by 2050, with negative effects on water stress. Due to the strong influence of local factors on water footprint and stress, additional research is needed for all Mexican sugarcane regions, in order to evaluate the feasibility of the policy regarding the use of ethanol for transportation. © IWA Publishing 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67713
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Engineering, Universidad Nacional Autónoma de México, Apdo. Postal 70472, 04510 Coyoacán, México D.F, Mexico
Recommended Citation:
Haro M.E.,Navarro I.,Thompson R.,et al. Estimation of the water footprint of sugarcane in Mexico: Is ethanol production an environmentally feasible fuel option?[J]. Journal of Water and Climate Change,2014-01-01,5(1)