Climatic Change

, Volume 119, Issue 3–4, pp 855–873

How will climate change spatially affect agriculture production in Ethiopia? Case studies of important cereal crops

  • Paul Evangelista
  • Nicholas Young
  • Jonathan Burnett
Article

Abstract

Nearly all of Ethiopia’s agriculture is dependent on rainfall, particularly the amount and seasonal occurrence. Future climate change predictions agree that changes in rainfall, temperature, and seasonality will impact Ethiopia with dramatic consequences. When, where, and how these changes will transpire has not been adequately addressed. The objective of our study was to model how projected climate change scenarios will spatially and temporally impact cereal production, a dietary staple for millions of Ethiopians. We used Maxent software fit with crop data collected from household surveys and bioclimatic variables from the WorldClim database to develop spatially explicit models of crop production in Ethiopia. Our results were extrapolated to three climate change projections (i.e., Canadian Centre for Climate Modeling and Analysis, Hadley Centre Coupled Model v3, and Commonwealth Scientific and Industrial Research Organization), each having two emission scenarios. Model evaluations indicated that our results had strong predictability for all four cereal crops with area under the curve values of 0.79, 0.81, 0.79, and 0.83 for teff, maize, sorghum, and barley, respectively. As expected, bioclimatic variables related to rainfall were the greatest predictors for all four cereal crops. All models showed similar decreasing spatial trends in cereal production. In addition, there were geographic shifts in land suitability which need to be accounted for when assessing overall vulnerability to climate change. The ability to adapt to climate change will be critical for Ethiopia’s agricultural system and food security. Spatially explicit models will be vital for developing early warning systems, adaptive strategies, and policy to minimize the negative impacts of climate change on food production.

IPCC

Intergovernmental Panel on Climate Change

Maxent

Maximum Entropy

EASE

Ethiopian Agriculture Sample Enumeration

GIS

Geographic Information Systems

CCCMA

Canadian Centre for Climate Modeling and Analysis

HadCM3

Hadley Centre Coupled Model v3

CSIRO

Commonwealth Scientific and Industrial Research Organization

AUC

Area under the curve

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Paul Evangelista
    • 1
  • Nicholas Young
    • 1
  • Jonathan Burnett
    • 1
    • 2
  1. 1.Natural Resource Ecology Laboratory, B254 NESBColorado State UniversityFort CollinsUSA
  2. 2.Department of Forest Engineering, Resources and Management, College of ForestryOregon State UniversityCorvallisUSA

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