Open Access
Table 1
Research findings on ecological footprint from selected biofuel crops in Australia.
| Items | Unit | Sun flower | Rapeseed | Palm oil | Microalgae |
|---|---|---|---|---|---|
| Bio-oil production | kL/ha/year | 0.44 | 1.20 | 3.69 | 27.23 |
| Land required | |||||
| B100 | ha | 9 116 120 | 5 864 500 | 2 262 110 | 337 299 |
| B20 | ha | 1 823 224 | 1 172 900 | 452 422 | 67 459 |
| Ecological footprint | |||||
| B100 | ha/cap | 0.38 | 0.14 | 0.05 | 0.04 |
| B20 | ha/cap | 0.08 | 0.03 | 0.02 | 0.01 |
| Australian ecological footprint (EF) [8] | Global ha/cap | 6.25 | 6.25 | 6.25 | 6.25 |
| % of Australian | |||||
| EF B100 | % | 6.13 | 2.24 | 0.84 | 0.62 |
| EF B20 | % | 1.23 | 0.48 | 0.32 | 0.12 |
| Water footprint | Million m3/ha/year | 10 939 | 8931 | 7704 | 1113 |
| CO2 footprint including average ILUC | gCO2/MJ | Biofuel emission 31-150 [22] | |||
| Diesel fossil fuel emission ∼ 83.8 [23] | |||||
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