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- Title
Second harvest-Is there sufficient stubble for biofuel production in Australia?
- Authors
Herr, Alexander; O'Connell, Deborah; Dunlop, Michael; Unkovich, Murray; Poulton, Perry; Poole, Michael
- Abstract
Identifying the location and amount of grain crop residues (stubble) in Australia is necessary for determining the viability of potential biofuel plant locations. We combined 22 years of crop statistics with harvest indices and land use to arrive at spatially explicit stubble productivity figures. Stubble quantities using different focal radii and from different seasons provide an insight into the feasibility of its use for bioenergy. We focus on areas where the stubble concentrations within a 50 km radius were at least 500 kt per year; the amount suggested for a viable lignocellolosic bioethanol facility. The outcome of this study has been to show, for the first time, where there are large amounts of stubble in Australia. Whether the supply of stubble is sufficiently constant over time and indeed available at a price that is economic for a biofuel plant must be subject to future work.
- Subjects
AUSTRALIA; CROP residues; ENERGY crops; GREENHOUSE gases; LIGNOCELLULOSE; WHEAT; ETHANOL
- Publication
GCB Bioenergy, 2012, Vol 4, Issue 6, p654
- ISSN
1757-1693
- Publication type
Article
- DOI
10.1111/j.1757-1707.2012.01165.x