Impacts of Climate Change on Food Security: A Literature Review in Sub Saharan Africa

A, Zewdie

doi:10.4172/2157-7617.1000225

Cited by 21 publications

(10 citation statements)

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“…Though several studies have been conducted globally and on regional scales relating historical climate impacts and yields, to the best of our knowledge, no such studies, particularly during cropping seasons, have been conducted in the Gambia. Some studies revealed an upward trend in temperature (representing climate warming), considered a major driver in drought frequency and severity across different regions [9,21,76], which aligns with the findings of this work. Tmin is rising faster than Tmax, consistent with studies such as [77,78] with more apparent warming observed in the S. Sahelian region.…”

Section: Discussionsupporting

confidence: 91%

“…Evidence from a series of empirical and statistical studies [7] indicates that agriculture is one of the most directly sensitive sectors affected by changes in climatic parameters because the weather is an essential input in crop production. Thus, the agricultural sector is projected to continue under severe threat, as droughts and rising temperatures induced by global warming will exert pressure on agricultural resources, consequently affecting the spatial and temporal distribution of crops and crop yields and global food security [8,9]. Considerable evidence regarding the potential impacts of historical and future climate change on yields has been reported [2,4,10].…”

Section: Introductionmentioning

confidence: 99%

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Impacts of Temperature Trends and SPEI on Yields of Major Cereal Crops in the Gambia

Jabbi

Zhang

et al. 2021

Sustainability

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Variations in the climate constitute a significant threat to the productivity of food crops in the Gambia. A good understanding of the influence of climate variability on crop production is vital for climate resilience and improved food security. This study examined the trends, relationships, and the extent to which growing season temperatures and the SPEI (Standardized Precipitation and Evapotranspiration Index) impacted sorghum, millet, maize, and rice yields in three agro-ecological regions of the Gambia during 1990–2019. Mean temperatures and the SPEI exhibited increasing trends while observed yields showed a decline across all regions. The SPEI had a significant positive relationship with yields, and temperatures were negatively associated with yields. Though yield response to climate variability differs among regions, 20% to 62% of variations in the four crop yields were due to climate trends. The combined effect of the SPEI and temperatures decreased yields from 3.6 kg ha−1 year−1 to 29.4 kg ha−1 year−1, with the most severe decline observed in rice and maize yields in the Sahelian zone. Although uncertainties might arise from not considering related extreme climate events, this study highlights how past climate trends affect cereal yields in the Gambia; thus, any unfavorable change in the local climate could have severe repercussions on the country’s food security. There is a need for concerted efforts to increase investments in adaptation strategies to lessen the effects of the climate for improved crop productivity.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Impacts of Temperature Trends and SPEI on Yields of Major Cereal Crops in the Gambia

Jabbi

Zhang

et al. 2021

Sustainability

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“…Apparently, legumes which were initially omitted are now part of the subsidy package (Messina et al, 2017). Driven by the increasing impact of climate change on agriculture, the expectation is that climate smart technologies such as organic manures and legumes could be widely adopted and intensified (Zewdie, 2014). However, the recent study by Katengeza, Holden, and Fisher (2019) found that farmers' usage of these promising technologies is a short-term drought adaptation strategy and not a long-term solution.…”

Section: Introductionmentioning

confidence: 99%

The role of women empowerment and labour dependency on adoption of integrated soil fertility management in Malawi

Mponela

Villamor

Snapp

et al. 2020

Soil Use and Management

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“…From a continental view, the warming in the African continent is projected to be greater than the global average with an increased average temperature of 3-4 • C over the twenty-second century (Thompson et al, 2010;Zewdie, 2014). The changes in precipitation to be experienced on the African continent at the end of the twenty-first century is however expected to be unique across the different regions (Niang et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Climate Change, Land, Water, and Food Security: Perspectives From Sub-Saharan Africa

Ofori

Cobbina

Obiri

2021

Front. Sustain. Food Syst.

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The current and projected warming of the earth is unequivocal with humans playing a strong role as both perpetrators and victims. The warming on the African continent is projected to be greater than the global average with an increased average temperature of 3–6°C by the end of the century under a high Representative Concentration Pathway. In Africa, the Sub-Saharan region is identified as the most vulnerable to the changing climate due to its very low capacity to adapt to or mitigate climate change. While it is common to identify studies conducted to assess how climate change independently impacts water, land, or food resources, very limited studies have sought to address the interlinkages, synergies, and trade-offs existing between climate change, water, land, and food (WLF) resources as a system in Sub-Saharan Africa (SSA). The climate change and WLF security nexus, therefore, seeks to address this shortfall in literature and subsequently serve as a relevant source of information for decision-making and policy implementation concerning climate change mitigation and adaptation. In this study, 41 relevant studies were selected from Web of Science, Google Scholar, ResearchGate, and institutional websites. We provide information on the independent relationships between climate change and WLF resources, and further discuss the existing inter-linkages between climate change and the WLF security in SSA using the nexus approach, with recommendations on how decision making and policy implementations should be done using the climate change and WLF security nexus approach.

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Impacts of Climate Change on Food Security: A Literature Review in Sub Saharan Africa

Cited by 21 publications

References 0 publications

Impacts of Temperature Trends and SPEI on Yields of Major Cereal Crops in the Gambia

Impacts of Temperature Trends and SPEI on Yields of Major Cereal Crops in the Gambia

The role of women empowerment and labour dependency on adoption of integrated soil fertility management in Malawi

Climate Change, Land, Water, and Food Security: Perspectives From Sub-Saharan Africa

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