Climate change and eastern Africa: a review of impact on major crops

Global warming has become one of the major challenges in maintaining global food security. This paper reviews the impacts of climate change on fourteen strategic crops for eight sub‐Saharan Africa countries. Climate change is projected to increase median temperature by 1.4–5.5°C and median precipita...

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Bibliographic Details
Published in:Food and energy security 2015-07, Vol.4 (2), p.110-132
Main Authors: Adhikari, Umesh, Nejadhashemi, A. Pouyan, Woznicki, Sean A.
Format: Article
Language:English
Subjects:
Agricultural industry
Agricultural production
Agriculture
Atmospheric precipitations
Cassava
Cereal crops
Climate change
Coffee
Cotton
Crop yield
Crops
Drought
East Africa
Environmental impact
feed the future
Food processing industry
Food security
Global warming
Grain
Grain crops
Greenhouse effect
Harvesting
Irrigation systems
Irrigation water
Millet
Potatoes
Precipitation
Rain
Rainfall
Reduction
Sorghum
Soybeans
Spatial variations
Sugarcane
Sweet potatoes
Tea
Temperature
Temperature effects
Water harvesting
Wheat
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Summary:Global warming has become one of the major challenges in maintaining global food security. This paper reviews the impacts of climate change on fourteen strategic crops for eight sub‐Saharan Africa countries. Climate change is projected to increase median temperature by 1.4–5.5°C and median precipitation by −2% to 20% by the end of the 21st century. However, large levels of uncertainty exist with temporal and spatial variability of rainfall events. The impact of climate change on crop yields in the region is largely negative. Among the grain crops, wheat is reported as the most vulnerable crop, for which up to 72% of the current yield is projected to decline. For other grain crops, such as maize, rice and soybean, up to 45% yield reductions are expected by the end of this century. Two grain crops, millet and sorghum, are more resilient to climate change for which projected impacts on crop yields are
ISSN:2048-3694
2048-3694
DOI:10.1002/fes3.61