Land Use Change and the European Biofuels Policy: The expansion of oilseed feedstocks on lands with high carbon stocks

The focus of this article is on the potential land use change impacts associated with the oilseed-based biodiesel consumption. The three main crops used for biodiesel production to date are oilseed rape (OSR), soybeans and oil palm. Therefore, the objective of this paper is to provide a technical assessment of potential land use change arising from the growth of these three major crops at global level, obtained through a broad country-level analysis for their respective major producing countries. The article presents an historical data analysis, evaluating the interaction between the expansion and contraction of these three crops over the last three decades (with a closer look from 2008) together with the carbon stock changes to the land. We categorise the land use by its carbon stock and resulting carbon stock changes from land use change. Crops aimed at the production of ethanol, such as maize (corn), sugarcane, wheat, cassava and sugar beet, although extremely relevant for biofuel policies, are not the subject of this present study. While we did not know at the time of writing this report how the term “significant” would be defined in the EU delegated act we concluded from the analysis of the historical data and using the high ILUC-risk definition as it stands, that the emissions associated with palm and soy are significant. For oil palm, we take Indonesia and Malaysia as proxy for the global position. We calculate an average expansion of 29% on high carbon stock land. For soy, we calculate a global average of 19% expansion. We calculate the global average greenhouse gas emissions intensities based on the ILUC-risks as 56 gCO 2 eq/MJ for soy oil and 108 gCO 2 eq/MJ for palm oil. Future projections (OECD-FAO, 2017) suggest these numbers could drop significantly. We do not find evidence for high ILUC-risk expansion of oilseed rape. Cet article se penche sur les impacts potentiels du changement d’affectation des sols associés à la production de biodiesel à base d’oléagineux. Les trois principales cultures utilisées à ce jour pour la production de biodiesel sont le colza oléagineux, le soja et le palmier à huile. Par conséquent, l’objectif ici est de fournir une évaluation technique du changement d’utilisation des sols potentiel pour ces trois principales cultures au niveau mondial, obtenue par une analyse globale au niveau national pour leurs principaux pays producteurs respectifs. L’article présente une analyse des données historiques, évaluant l’interact