Crop models and their use in assessing crop production and food security: A review

Crop models allow a better understanding of crop production response to diverse conditions. They assess crop production and food availability, crucial parts of food security. Their outputs support farmer and shareholder responses to adaptation and mitigation. AbstractAgriculture is directly related to food security as it determines the global food supply. Research in agriculture to predict crop productivity and losses helps avoid high food demand with little supply and price spikes. Here, we review ten crop models and one intercomparison project used for simulating crop growth and productivity under various impacts from soil –crop–atmosphere interactions. The review outlines food security and production assessments using numerical models for maize, wheat, and rice production. A summary of reviewed studies shows the following: (1) model ensembles provide smaller modeling errors compared to single models, (2) single m odels show better results when coupled with other types of models, (3) the ten reviewed crop models had improvements over the years and can accurately predict crop growth and yield for most of the locations, management conditions, and genotypes tested, (4) APSIM and DSSAT are fast and reliable in as sessing broader output variables, (5) AquaCrop is indicated to investigate water footprint, quality and use efficiency in rainfed and irrigated systems, (6) all models assess nitrogen dynamics and use efficiency efficiently, excluding AquaCrop and WOFOST, (7) JULES...

Source: Food and Energy Security - September 23, 2023 Category: Food Science Authors: Yohanne Larissa Gavasso ‐Rita, Simon Michael Papalexiou, Yanping Li, Amin Elshorbagy, Zhenhua Li, Corinne Schuster‐Wallace Tags: REVIEW Source Type: research