Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1088/1748-9326/9/2/024015 |
Quantifying the climate impacts of albedo changes due to biofuel production: a comparison with biogeochemical effects | |
Caiazzo, Fabio; Malina, Robert; Staples, Mark D.; Wolfe, Philip J.; Yim, Steve H. L.; Barrett, Steven R. H. | |
通讯作者 | Caiazzo, Fabio |
来源期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2014 |
卷号 | 9期号:2 |
英文摘要 | Lifecycle analysis is a tool widely used to evaluate the climate impact of greenhouse gas emissions attributable to the production and use of biofuels. In this paper we employ an augmented lifecycle framework that includes climate impacts from changes in surface albedo due to land use change. We consider eleven land-use change scenarios for the cultivation of biomass for middle distillate fuel production, and compare our results to previous estimates of lifecycle greenhouse gas emissions for the same set of land-use change scenarios in terms of CO(2)e per unit of fuel energy. We find that two of the land-use change scenarios considered demonstrate a warming effect due to changes in surface albedo, compared to conventional fuel, the largest of which is for replacement of desert land with salicornia cultivation. This corresponds to 222 gCO(2)e/MJ, equivalent to 3890% and 247% of the lifecycle GHG emissions of fuels derived from salicornia and crude oil, respectively. Nine of the land-use change scenarios considered demonstrate a cooling effect, the largest of which is for the replacement of tropical rainforests with soybean cultivation. This corresponds to -161 gCO(2)e/MJ, or -28% and -178% of the lifecycle greenhouse gas emissions of fuels derived from soybean and crude oil, respectively. These results indicate that changes in surface albedo have the potential to dominate the climate impact of biofuels, and we conclude that accounting for changes in surface albedo is necessary for a complete assessment of the aggregate climate impacts of biofuel production and use. |
英文关键词 | albedo biofuels climate lifecycle |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000332072100016 |
WOS关键词 | LIFE-CYCLE ASSESSMENT ; GREENHOUSE-GAS EMISSIONS ; LAND-USE ; CARBON-CYCLE ; BIOENERGY ; BIODIESEL ; DEFORESTATION ; SIMULATIONS ; SERVICES ; BENEFITS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/181937 |
作者单位 | MIT, Dept Aeronaut & Astronaut, Lab Aviat & Environm, Cambridge, MA 02139 USA |
推荐引用方式 GB/T 7714 | Caiazzo, Fabio,Malina, Robert,Staples, Mark D.,et al. Quantifying the climate impacts of albedo changes due to biofuel production: a comparison with biogeochemical effects[J],2014,9(2). |
APA | Caiazzo, Fabio,Malina, Robert,Staples, Mark D.,Wolfe, Philip J.,Yim, Steve H. L.,&Barrett, Steven R. H..(2014).Quantifying the climate impacts of albedo changes due to biofuel production: a comparison with biogeochemical effects.ENVIRONMENTAL RESEARCH LETTERS,9(2). |
MLA | Caiazzo, Fabio,et al."Quantifying the climate impacts of albedo changes due to biofuel production: a comparison with biogeochemical effects".ENVIRONMENTAL RESEARCH LETTERS 9.2(2014). |
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