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The DOI matches its Crossref record; 22 of the 22 references it cites were found in a registry or an index.

Climate change impacts on crop productivity in Africa and South Asia

Open access
Knox, Jerry, Hess, Tim, Daccache, Andre, Wheeler, Tim·2012·Environmental Research Letters

Abstract

Climate change is a serious threat to crop productivity in regions that are already food insecure. We assessed the projected impacts of climate change on the yield of eight major crops in Africa and South Asia using a systematic review and meta-analysis of data in 52 original publications from an initial screen of 1144 studies. Here we show that the projected mean change in yield of all crops is − 8% by the 2050s in both regions. Across Africa, mean yield changes of − 17% (wheat), − 5% (maize), − 15% (sorghum) and − 10% (millet) and across South Asia of − 16% (maize) and − 11% (sorghum) were estimated. No mean change in yield was detected for rice. The limited number of studies identified for cassava, sugarcane and yams precluded any opportunity to conduct a meta-analysis for these crops. Variation about the projected mean yield change for all crops was smaller in studies that used an ensemble of > 3 climate (GCM) models. Conversely, complex simulation studies that used biophysical crop models showed the greatest variation in mean yield changes. Evidence of crop yield impact in Africa and South Asia is robust for wheat, maize, sorghum and millet, and either inconclusive, absent or contradictory for rice, cassava and sugarcane.

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Metadata

Authors
Knox, J., Hess, T., Daccache, A., & Wheeler, T.
Venue
Environmental Research Letters
Published
2012-09-01
Volume
7
Issue
3
Pages
034032
ISSN
1748-9326 (ISSN-L)
OpenAlex
W2148252758
Cited by
817
References
22
FWCI
34.44
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Climate change impacts on crop productivity in Africa and South Asia. https://app.cochat.ai/papers/10.1088/1748-9326/7/3/034032
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Knox, J., Hess, T., Daccache, A., & Wheeler, T. (2012). Climate change impacts on crop productivity in Africa and South Asia. Environmental Research Letters. https://doi.org/10.1088/1748-9326/7/3/034032

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.