The MAgPIE Model
The Model of Agricultural Production and its Impact on the Environment (MAgPIE) is a modular open source framework for modeling global land-systems, which is coupled to the grid-based dynamic vegetation model LPJmL, with a spatial resolution of 0.5°x0.5°. It takes spatially-explicit data on potential crop yields, land and water constraints (from LPJmL) as well as regional economic conditions such as demand for agricultural commodities, technological development and production costs into account. Country-level food intake, food waste and dietary composition is projected based on future scenarios for GDP, demographic structure and population growth. The objective of the land-system model is to minimize total cost of production for a given amount of regional food and bioenergy demand. Based on this, the model derives specific land-use patterns, yields and total costs of agricultural production for each grid cell, while also providing estimates for the impact on key natural processes such as nitrogen and carbon flows. Importantly, these outputs reflect the feedbacks between land-use and the biogeophysical processes that they depend on.
This comprehensive framework will allow FSEC to view the food system from a global perspective, integrating the potential behavior of consumers and food producers and their feedbacks on the Earth's biogeophysical processes. This integration supports researchers in exploring the consequences of proposed policy interventions across the different levels of our complex food system, and therefore enables them to better understand the decision-space wherein we can feed a growing world population in a healthy way, while simultaneously alleviating the pressure on our Earth's natural systems. The model will support FSEC to map out the most promising pathways through which we can guide the food system towards a more sustainable and inclusive future.