Climate Change Impact on Revenue of Major Food Crops in Ghana: Structural Ricardian Cross-Sectional Analysis

Issahaku, Zakaria Amidu; Maharjan, Keshav Lall

doi:10.1007/978-4-431-54774-7_2

Cited by 9 publications

(10 citation statements)

References 12 publications

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“…The results of the study are consistent with previous subnational‐level analysis (Issahaku et al, ; Neumann et al, ; Ofori‐Sarpong & Annor, ), national studies (Arku, ; Geografisk, ; Lacombe et al, ; Nkrumah et al, ; Oduro‐Afriyie & Adukpo, ; Owusu & Waylen, ; Paeth & Hense, ), and regional‐level results (Giannini et al, ), although none of these has examined the spatial interaction of all three indicators: total rainfall, rainfall variability, and temperature. However, it is important to note that the effect of these indicators on crop yield is not independent (Issahaku & Maharjan, ).…”

Section: Discussionmentioning

confidence: 99%

“…There could be a potential reduction in rice yields in these zones as a result, while at the same time research shows that warming could benefit maize yields (Thornton et al, ). Additional evidence demonstrates that these changes could result in a reduction in yam yields but may increase maize and cassava yields (Amikuzuno & Donkoh, ; Issahaku & Maharjan, , ).…”

Section: Discussionmentioning

confidence: 99%

“…To examine the changes in temperature, the minimum and maximum monthly temperatures were extracted for each grid (122 grids in total) by year and the mean annual temperature was computed for the months March to December for each grid. All three indicators were analysed due to their importance for crop growth (Amikuzuno & Donkoh, ; Issahaku & Maharjan, ; Jones & Thornton, ; Rowhani et al, ; Thornton et al, , ). The total rainfall and the standard deviation of the total rainfall for March to December were computed for each grid by year.…”

Section: Datamentioning

confidence: 99%

“…To understand the potential effects of the changes in rainfall and temperature on crop production, we considered the main crop‐growing months (March to December) of major staple crops in Ghana, including maize, rice, sorghum, cassava, millet, and yam (MoFA, ). We analysed the mean, minimum, and maximum annual temperature and the total and standard deviation of the annual rainfall using a 7‐year moving average window (Amikuzuno & Donkoh, ; Issahaku & Maharjan, ; Jones & Thornton, ; Rowhani et al, ; Thornton et al, , ). These measurement indicators enable us to conduct a systematic assessment of the quality and quantity of crop production and the likelihood of drought and flood conditions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Spatiotemporal Variations in Rainfall and Temperature in Ghana Over the Twentieth Century, 1900–2014

Abbam

Johnson

Dash

et al. 2018

Earth and Space Science

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Climate‐dependent subsistence agriculture remains the main livelihood for most populations in Ghana. The spatiotemporal variations in rainfall and temperature have influence particularly in poorly‐developed agrarian regions with limited or no irrigation infrastructure. Therefore, a systematic understanding of climate patterns across space and time is important for mitigating against food insecurity and household poverty. Using over a century of high‐spatial resolution data, this study examines the spatiotemporal variations in rainfall and temperature across Ghana to identify climate‐stressed locations with potential effect on the production of major staple crops. The data for the analysis were drawn from the University of Delaware's Gridded Precipitation and Temperature Monthly Climatology version 4.01. The analysis was restricted to the main crop‐growing periods (March to December). The Mann‐Kendall nonparametric regression test was used to examine significant changes in rainfall variability and temperature at the district level. The results show that Ghana's climate has become progressively drier over the last century and prone to drought conditions. The most climate‐stressed districts are clustered within the three northern regions (Upper West, Upper East, and Northern) and the Western region. The most recent census in Ghana shows that the three northern regions also have the highest prevalence of subsistence agriculture. The findings from this study have implications for targeted interventions such as the Ghanaian government's recent policy initiative aimed at alleviating rural poverty by encouraging youth participation in agriculture along with efforts to intensifying crop production using modern farming techniques.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatiotemporal Variations in Rainfall and Temperature in Ghana Over the Twentieth Century, 1900–2014

Abbam

Johnson

Dash

et al. 2018

Earth and Space Science

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“…Compared to other crops grown in the region, maize is actually prone to droughts and erratic rainfall. Issahaku and Maharjan [113] find that reduced rainfall and temperature rises are likely to prompt farmers to switch from the cultivation of cassava and maize to the planting of sorghum, rice, and yam. In summary; maize farmers might in the future be confronted with bad harvests.…”

Section: Climatementioning

confidence: 99%

Roaming through the Maze of Maize in Northern Ghana. A Systems Approach to Explore the Long-Term Effects of a Food Security Intervention

Mangnus

Westen

2018

Sustainability

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Central to food security interventions in Sub-Saharan Africa stands the value chain approach. The underlying idea is that connecting farmers to input and output markets and sources of knowledge and technology will enhance their food security status. In spite of positive impacts measured in especially food supply, there is scant evidence of the long-term effects on food security. For a better grasp of the impacts of a maize value chain intervention in North Ghana, we have experimented with an approach that focuses on interactions and feedback loops between the value chain and its local context. Such approach allowed us to identify dynamics that affect food security in the long run. In the case of Northern Ghana farming systems, household income and diets are increasingly dependent on maize, which increases risk of food insecurity in case of climate setbacks or market shocks. The exercise reveals how a linear value chain approach obscures the dynamic effects cascading from the intervention that may actually hamper food security in the long run. A systems approach may help to better grasp the consequences of external interventions at the local level.

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Climate variability and impacts on maize (Zea mays) yield in Ghana, West Africa

Atiah

Amekudzi

Akum

et al. 2021

Quart J Royal Meteoro Soc

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Rain-fed agriculture is predominantly the primary source of livelihood in sub-Saharan Africa. In Ghana, it employs over 60% of the population and contributes to about 30% of the Gross Domestic Product (GDP). Despite the relevance of rain-fed agriculture to the socioe-conomic development of the country, studies investigating the impacts of climate variability on crop yield in the region are limited. This prevents the growth of relevant policy frameworks to address the threats posed by climate variability on crop production. As a contribution to guide policy planning and food security in Ghana, the present study seeks to analyze the vulnerability of maize yield to rainfall, soil moisture, and minimum and maximum temperature variability in Ghana. Moreover, the study assesses the impact of below-normal and above-normal rainfall conditions on maize yield in the country. The results show a decreasing trend in rainfall and soil moisture and an increasing trend in the maize yield and minimum and maximum temperature in Ghana. The individual climate variables (rainfall, soil moisture, minimum and maximum temperature) account for approximately 4.2, 22.5, 39.2, and 23.1%, respectively, of the annual maize yield variations throughout the study period. Multivariate regression analysis revealed that soil moisture and minimum and maximum temperature account for approximately 75% of the variation of maize yield under wetter-than-normal conditions in Ghana. This implies that, under wetter-than-normal rainfall conditions, 25% of the variation in maize yield could be attributable to non-climatic conditions or practices. In like manner, climatic parameters account for 40.8% of maize yield under drier-than-normal rainfall conditions in the country. This study, therefore, recommends investment in climate-smart agronomic technologies such as access to improved seed, extension and mechanization services, and other farm management practices to maximize maize yield in the country.

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Climate Change Impact on Revenue of Major Food Crops in Ghana: Structural Ricardian Cross-Sectional Analysis

Cited by 9 publications

References 12 publications

Spatiotemporal Variations in Rainfall and Temperature in Ghana Over the Twentieth Century, 1900–2014

Spatiotemporal Variations in Rainfall and Temperature in Ghana Over the Twentieth Century, 1900–2014

Roaming through the Maze of Maize in Northern Ghana. A Systems Approach to Explore the Long-Term Effects of a Food Security Intervention

Climate variability and impacts on maize (Zea mays) yield in Ghana, West Africa

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