Soil, Water, and Climate Change Integrated Impact Assessment on Yields: Approach from Central Mexico

Alejandro I. Monterroso-Rivas, Jesús D. Gómez-Díaz and Antonio R. Arce-Romero
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Alejandro I. Monterroso-Rivas: Universidad Autónoma Chapingo, Chapingo, Mexico
Jesús D. Gómez-Díaz: Universidad Autónoma Chapingo, Chapingo, Mexico
Antonio R. Arce-Romero: Universidad Autónoma Chapingo, Chapingo, Mexico

International Journal of Agricultural and Environmental Information Systems (IJAEIS), 2018, vol. 9, issue 2, 20-31

Abstract: This article describes the potential yields of maize, wheat and barley which were modeled with climate change, soil degradation and water balance scenarios in central Mexico. Two adaptation measures were also evaluated. To estimate yields the AquaCrop-FAO model was applied. Three study cases were chosen and their climate, soil, phenological and management information was compiled. Once calibrated, the authors tested the response in yields for 28 climate change scenarios: five General Circulation Models, two RCP and three-time horizons. Two adaptation actions were evaluated: changing planting date and increase of organic mulches. Results show that yield of maize in the near future (2015-2039) would fall 50% average, barley and wheat yields would decrease in 40% and 25% respectively. If soil degradation and loss is considered, the yield will reduce considerably. Adaptation measure based on changing planting date was as effective as increasing mulches. It is necessary to consider soil together with climate change scenarios in yield modeling. It is possible to suggest wrong adaptation measures if only the climate is considered and not all the variables involved.

Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jaeis0:v:9:y:2018:i:2:p:20-31

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