Linking global crop and livestock consumption to local production hotspots
International trade plays a critical role in global food security, with global consumption having highly localized environmental impacts.
- Paul Behrens, Laura Scherer, Zhongxiao Sun & Arnold Tukker
- 03 October 2019
- Science Direct
It has been difficult to gain insights into these effects due to the diversity of food production, and complexity of supply chains in international trade. We present a Spatially-explicit Multi-Regional Input-Output (SMRIO) model which couples primary crops and livestock at a high spatial resolution with a global Multi-Regional Input-Output (MRIO) model. We then identify hotspots (the most significant production regions) for primary crops and livestock driven by international consumption. We present the method and data behind this approach, and provide illustrative case studies for Indonesian palm oil and Brazilian soy and beef production. Regionally, China is the largest primary crop consumer, while the EU28 is the largest livestock consumer. Primary crops and livestock hotspots are highly unequal, and the embodied primary crops and livestock for high-income countries are distributed over larger areas when compared to lower-income countries since high-income countries have more numerous trade links. Identified hotspots could allow for increased cooperation between consumers (high-income countries) and producers (lower-income countries) to improve sustainability programs for global food security.
• The first spatial assessment of crops and livestock embodied in trade.
• A road network served to allocate between domestic consumption and exports.
• Food production for high-income countries is spread over larger areas.
• Per-capita food consumption in high-income countries far exceeds tentative targets.