Biodiesel / Biodiesel
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Table 2

Annual CO2 emissions from soy, palm and rapeseed expansion over land with high carbon stocks (HCSL).

Oil crop Country Forest area change kha y−1 Production Mt y−1 Oil crop expansion, harvested area, A0 kha y−1 Expansion over HCSL, A1 kha y−1 Expansion ratio over HCSL, A1/A0 (%) Emission factor expansion over HCSL, Em tCO2eq ha−1 Emission factor tCO2eq/t oil Emission intensity, Ei gCO2eq/MJ oil with economic allocation
Soybean (grain) Argentina −305 45.7 437 122 28 415 10.3 95
Brazil −1252 96.3 1111 189 17 415 5.7 52
China 1531 12.0 −266 0 Not applicable 0.0 0
USA 482 117.2 329 0 Not applicable 0.0 0
ROW −3806 50.6
   World −3350 334.9 1611 311 19 415 6.2 56

Palm oil (oil) Indonesia −685 36.0 522 157 30 1080 4.8 126
Malaysia 107 18.9 84 17 20 1242 3.3 69
ROW −2772 10.4
   World −3350 65.3 606 174 29 1095 4.3 108

Oilseed rape (oil) Canada −50 18.4 275 0 Not applicable 0.0 0
China 1531 15.3 163 0 Not applicable 0.0 0
India 274 6.8 −151 0 Not applicable 0.0 0
USA 482 1.4 27 0 Not applicable 0.0 0
EU28 421 19.7 107 0 Not applicable 0.0 0
ROW −5792 7.2
   World −3350 68.9 421 0 Not applicable 0.0 0

Source: Prepared by the authors.

Notes: (1) Total oil crop production as in 2014 base year (FAO, 2018). (2) Oil crop expansions over native vegetation (HCSL) were estimated by the authors for approximately the last ten years of historical values, based on literature review and assumptions described in this assessment report. Native vegetation includes forestlands and natural grasslands, as well as peatlands. (3) Uncertainties involved: some peatlands may be misclassified in the assessed databases and not included as either forestlands or grasslands, but instead in the category of other lands, which includes deserts, ice covers, settlements and infrastructure. This may be particularly critical for Malaysia, which may have its potential impacts underestimated. (4) Annual oil crop expansion from 2006–2016 (FAO, 2018). Annual oil crop expansion over native vegetation based on estimates described in the report, including assumptions for GHG emissions from IPCC (2000), and all carbon release from deforestation occurring within the same year. (5) Although Malaysia shows a net afforestation/reforestation based on FAO (2018), it has expanded part of its oil palm area over forestland, peatland and bare soils, which may be classified as “other land” (see Appendix A). (6) The oil fraction yield for soybean is 20% for the calculations shown in this table. ROW – Rest of the World.

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