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Biofuels and sustainable development...

Sheehan, John Joseph.

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Biofuels and sustainable development: Perspectives on the farm and around the globe.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Biofuels and sustainable development: Perspectives on the farm and around the globe./
作者:	Sheehan, John Joseph.
面頁冊數:	169 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-07(E), Section: B.
Contained By:	Dissertation Abstracts International75-07B(E).
標題:	Alternative Energy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3616110
ISBN:	9781303829116

Biofuels and sustainable development: Perspectives on the farm and around the globe.
Sheehan, John Joseph.

Biofuels and sustainable development: Perspectives on the farm and around the globe. - 169 p.

Source: Dissertation Abstracts International, Volume: 75-07(E), Section: B.

Thesis (Ph.D.)--University of Minnesota, 2014.

This item must not be sold to any third party vendors.

The idea that biofuels can be sustainable has long been controversial. This research considers three land-related aspects of biofuels sustainability:

ISBN: 9781303829116Subjects--Topical Terms:

1035473
Alternative Energy.

Biofuels and sustainable development: Perspectives on the farm and around the globe.
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245 1 0 $a Biofuels and sustainable development: Perspectives on the farm and around the globe.
300 $a 169 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-07(E), Section: B.
500 $a Adviser: Stephen Polasky.
502 $a Thesis (Ph.D.)--University of Minnesota, 2014.
506 $a This item must not be sold to any third party vendors.
520 $a The idea that biofuels can be sustainable has long been controversial. This research considers three land-related aspects of biofuels sustainability:
520 $a 1. The effect of local farm management practices on the sustainability of land used to produce corn grain as a biorefinery feedstock. 2. The relative sustainability of land used for producing corn and sugarcane as a function of latitude. 3. The land use implications for biofuels of global pasture-based livestock production systems.
520 $a Local corn farm management choices can make the difference between net negative and net positive carbon footprints for grain delivered to biorefineries. Carbon footprints reported here are based on full life cycle assessments of each farm, including modeled soil emissions of greenhouse gases. For a cohort of farmers surveyed in southwest Minnesota, avoiding excess fertilizer use, adopting no till practices and replacing commercial fertilizer with animal manure leads to negative carbon footprints of up to -117 gCO2eq per ha.
520 $a Globally, the choice of land managed for corn or sugarcane versus land maintained to support natural ecosystems is highly dependent on latitude. On average sugarcane produces three times more energy per unit area than does maize. Latitudes closer to the equator have higher net primary productivity (NPP), so there is a greater trade-off between biofuel production and ecosystem productivity in the equatorial zones. Sugarcane is still twice as productive on average compared to maize in the amount of biofuel energy produced per unit of NPP. Global pasture systems could reduce their land footprint by several-fold simply by closing the gap between poor performing and high performing pasture systems across climatically-similar parts of the world. Because pasture's global land footprint is so large, closing the performance gap could make vast amounts of land available for biomass feedstocks, with no new land clearing.
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