Impact of climate change on the staple food crops yield in Ethiopia: implications for food security

Kassaye, Ashenafi Yimam; Shao, Guangcheng; Wang, Xiaojun; Shifaw, Eshetu; Wu, Shiqing

doi:10.1007/s00704-021-03635-8

Cited by 26 publications

(19 citation statements)

References 41 publications

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“…Climate change has further increased the need to produce improved crops with better resilience in the ever-changing environment. If the issue is not addressed, climate change may soon disrupt food availability, reduce access to food, and affect food quality and yield [ 67 , 68 , 69 , 70 ]. Therefore, continuous innovations require to be made to enable specific changes in the crop genome to speed up the process of identifying plants with desirable traits.…”

Section: The Rise Of Recombinant Dna Technology and Genetically Modif...mentioning

confidence: 99%

Green Revolution to Gene Revolution: Technological Advances in Agriculture to Feed the World

Hamdan

Noor

Abd-Aziz

et al. 2022

Plants

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Technological applications in agriculture have evolved substantially to increase crop yields and quality to meet global food demand. Conventional techniques, such as seed saving, selective breeding, and mutation breeding (variation breeding), have dramatically increased crop production, especially during the ‘Green Revolution’ in the 1990s. However, newer issues, such as limited arable lands, climate change, and ever-increasing food demand, pose challenges to agricultural production and threaten food security. In the following ‘Gene Revolution’ era, rapid innovations in the biotechnology field provide alternative strategies to further improve crop yield, quality, and resilience towards biotic and abiotic stresses. These innovations include the introduction of DNA recombinant technology and applications of genome editing techniques, such as transcription activator-like effector (TALEN), zinc-finger nucleases (ZFN), and clustered regularly interspaced short palindromic repeats/CRISPR associated (CRISPR/Cas) systems. However, the acceptance and future of these modern tools rely on the regulatory frameworks governing their development and production in various countries. Herein, we examine the evolution of technological applications in agriculture, focusing on the motivations for their introduction, technical challenges, possible benefits and concerns, and regulatory frameworks governing genetically engineered product development and production.

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Section: The Rise Of Recombinant Dna Technology and Genetically Modif...mentioning

confidence: 99%

Green Revolution to Gene Revolution: Technological Advances in Agriculture to Feed the World

Hamdan

Noor

Abd-Aziz

et al. 2022

Plants

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“…where Y * i is the unobserved latent utility from adoption of a given set of CSAs, y i is the observed adoption of CSA strategies. Observed adoption was modeled using the ordinal response model as shown in equation (5):…”

Section: Determining Factors Influencing the Adoption Of Csa Practice...mentioning

confidence: 99%

“…Predictions have shown that these observed patterns will be increasing in intensity and unpredictability over sub-Saharan Africa [3]. These projected patterns of climate change, particularly increased temperatures and shifting precipitation patterns [4], will have significant adverse effects on agriculture, especially on staple crops and food security [3,5]. This has raised questions as to whether sub-Saharan Africa will have reliable food sources necessary for healthy human life.…”

Section: Introductionmentioning

confidence: 99%

Micro-level analysis of climate-smart agriculture adoption and effect on household food security in semi-arid Nakasongola District in Uganda

Egeru

Bbosa

Siya

et al. 2022

Environ. Res.: Climate

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Background Climate-Smart Agriculture (CSA) is fronted as a sustainable, transformative, and technologically innovative approach that increases agricultural productivity, incomes and enhances greenhouse gas mitigation. However, there is limited micro-level evidence on the effects of the adoption of CSA on food security despite intensified promotion efforts in Uganda. Methods A cross-sectional household survey among 165 respondents, undertaken in August-September 2020, was used to collect requisite data. Principal Component Analysis (PCA) with iteration and varimax rotation and Analysis of Variance (ANOVA) were used in characterizing CSA practices. An Ordered Logit Model was applied to identify the reported levels of CSA utility. Meanwhile, an endogenous switching regression was adopted to determine the effect of CSA adoption on household food security. Results Results showed that households used a combination of practices, including soil and water management, pasture management, livestock productivity and disease management. The PCA results revealed six major categories for the 16 most commonly used CSA practice combinations. The key factors that influenced the adoption of CSA practices among households included; access to climate information, total livestock units, ownership of non-livestock assets, and participation in off-farm activities. Results also revealed that the expected food consumption scores of adopters and non-adopters were 53.87 and 66.92 respectively. However, when adopters and non-adopters were compared, we found that the adopters of CSA practices would have had a significantly lower counterfactual food consumption score had they not adopted CSA. Conclusions While the adoption levels of CSA in this study is low, the counterfactual effects have shown that households that adopted CSA would have had a lower food consumption scores and therefore lower food security status had they not adopted CSA. We recommend CSA promotional efforts that give more attention to combined CSA practices and respond to local production constraints.

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“…Timothy et al, (2019) researched the Climate change impacts on crop yields in Ethiopia and suggest that climate change will likely have only relatively small effects on average yields of maize. However, Kassaye et al, (2021) study on the Impact of climate change on the staple food crop yield in Ethiopia suggest that the yield of teff and maize will be expected to increase by 20.2 and 17.9% respectively at the end of the twenty-first century with increasing temperature and rainfall decline. Ironically, Abera et al, (2018) indicate that maize yields will decrease by up to 43 and 24% by the end of the century at Bako and Melkassa stations, respectively, while simulated maize yield in Hawassa will increase by 51%.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Climate Change Impact of Rainfed Maize Production Yield in Southern Ethiopia

Disasa

Yan

2022

Preprint

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A developing country like Ethiopia suffers a lot from the effects of climate change due to its limited economic capability to build irrigation projects to combat climate change's impact on crop production. This study evaluates climate change's impact on rainfed maize production in the Southern part of Ethiopia. AquaCrop, developed by FAO that simulates the crop yield response to water deficit conditions, is employed to assess potential rainfed maize production in the study area with and without climate change. The Stochastic weather generators model LARS-WG of the latest version is used to simulate local-scale level climate variables based on low-resolution GCM outputs. The expected monthly percentage change of rainfall during these two-time horizons (2040 and 2060) ranges from -23.18 to 20.23% and -14.8 to 36.66 respectively. Moreover, the monthly mean of the minimum and maximum temperature are estimated to increase in the range of 1.296 0C to 2.192 0C and 0.98 0C to 1.84 0C for the first time horizon (2031-2050) and from 1.860C to 3.40C and 1.560C to 3.180C in the second time horizon (2051-2070), respectively. Maize yields are expected to increase with the range of 4.13–7% and 6.36–9.32% for the respective time horizon in the study area provided that all other parameters were kept the same. In conclusion, the study results suggest that rainfed maize yield responds positively to climate change if all field management, soil fertility, and crop variety improve were kept the same to baseline; but since there is intermodal rainfall variability among the seasons planting date should be scheduled well to combat water stress on crops. The authors believe that this study is very likely important for regional development agents (DA) and policymakers to cope up with the climate change phenomenon and take some mitigation and adaptation strategies.

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Impact of climate change on the staple food crops yield in Ethiopia: implications for food security

Cited by 26 publications

References 41 publications

Green Revolution to Gene Revolution: Technological Advances in Agriculture to Feed the World

Green Revolution to Gene Revolution: Technological Advances in Agriculture to Feed the World

Micro-level analysis of climate-smart agriculture adoption and effect on household food security in semi-arid Nakasongola District in Uganda

Evaluating Climate Change Impact of Rainfed Maize Production Yield in Southern Ethiopia

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