O-104 バイオ燃料推進における窒素への期待と憂慮(セッション1:資源・システム,研究発表,(口頭発表))
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概要
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Expanded use of biomass energy causes massive plantation of energy-crop. This will indirectly push up food prices, and directly induce changes in land use such as deforestation and over fertilization, global warming, biodiversity loss and other environmental issues. To promote the sustainable utilization of biofuels, a comprehensive assessment of the environmental risk trade-off on this multifaceted problem is essential. We have been performing a series of researches focusing on nitrogen and the modulation of nitrogen cycle due to land use changes in biofuel production since 2008. In this report, some positive (yield increase on limited arable land) and negative (GHG emission and biodiversity loss) results corresponding to nitrogen fertilization will be presented to show the expectation and anxiety to nitrogen in promoting biofuel for social discussion.
- 2012-01-18