The sustainability of ethanol production from sugarcane
The sustainability of ethanol production from sugarcane
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DOI：
10.1016/j.enpol.2008.02.028
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发表时间：
2008-06-01
期刊：
影响因子：
9
通讯作者：
Guardabassi, Patricia
中科院分区：
文献类型：
--
作者：
Goldemberg, Jose;Coelho, Suani Teixeira;Guardabassi, Patricia
巴西甘蔗乙醇生产的迅速扩张引发了一些关于其负面后果和可持续性的问题。积极的影响是消除汽油中的铅化合物和减少有害排放。还有二氧化碳排放的减少，因为甘蔗乙醇的生产只需要少量的化石燃料，因此是一种可再生燃料。这些积极影响在大都市地区的空气质量改善方面尤其明显，在农村地区也是如此，那里正在采用机械化收割绿色甘蔗，消除甘蔗焚烧。负面影响，如未来从甘蔗中大规模生产乙醇，可能会导致高度生物多样性地区的破坏或破坏、森林砍伐、通过使用化学品和土壤脱碳而导致土壤退化或破坏、水资源污染或枯竭、粮食和燃料生产之间的竞争、粮食安全下降以及田间劳动条件恶化。这里讨论这些问题，目的是澄清主要在圣保罗州用甘蔗生产乙醇的可持续性问题，巴西60%以上的甘蔗种植园位于圣保罗州，占乙醇产量的62%。(C)2008爱思唯尔有限公司。保留所有权利。
The rapid expansion of ethanol production from sugarcane in Brazil has raised a number of questions regarding its negative consequences and sustainability. Positive impacts are the elimination of lead compounds from gasoline and the reduction of noxious emissions. There is also the reduction of CO2 emissions, since sugarcane ethanol requires only a small amount of fossil fuels for its production, being thus a renewable fuel. These positive impacts are particularly noticeable in the air quality improvement of metropolitan areas but also in rural areas where mechanized harvesting of green cane is being introduced, eliminating the burning of sugarcane. Negative impacts such as future large-scale ethanol production from sugarcane might lead to the destruction or damage of high-biodiversity areas, deforestation, degradation or damaging of soils through the use of chemicals and soil decarbonization, water resources contamination or depletion, competition between food and fuel production decreasing food security and a worsening of labor conditions on the fields. These questions are discussed here, with the purpose of clarifying the sustainability aspects of ethanol production from sugarcane mainly in Sao Paulo State, where more than 60% of Brazil's sugarcane plantations are located and are responsible for 62% of ethanol production. (c) 2008 Elsevier Ltd. All rights reserved.