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Genesis Tambang Yengoh
Lund University

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Book chapter
Published: 25 November 2020 in Encyclopedia of the UN Sustainable Development Goals
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Genesis Tambang Yengoh. Impact of Land Degradation on Rural Livelihoods in Sub-Saharan Africa. Encyclopedia of the UN Sustainable Development Goals 2020, 537 -551.

AMA Style

Genesis Tambang Yengoh. Impact of Land Degradation on Rural Livelihoods in Sub-Saharan Africa. Encyclopedia of the UN Sustainable Development Goals. 2020; ():537-551.

Chicago/Turabian Style

Genesis Tambang Yengoh. 2020. "Impact of Land Degradation on Rural Livelihoods in Sub-Saharan Africa." Encyclopedia of the UN Sustainable Development Goals , no. : 537-551.

Journal article
Published: 15 September 2020 in Atmosphere
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Prunus africana is a fast-growing, evergreen canopy tree with several medicinal, household, and agroforestry uses, as well as ecological value for over 22 countries in sub-Saharan Africa. This species is under immense pressure from human activity, compounding its vulnerability to the effects of climate change. Predicting suitable habitats for P. africana under changing climate is essential for conservation monitoring and planning. This study intends to predict the impact of climate change on the suitable habitats for the vulnerable P. africana in Tanzania. We used maximum entropy modeling to predict future habitat distribution based on the representative concentration pathways scenario 4.5 and 8.5 for the mid-century 2050 and late-century 2070. Species occurrence records and environmental variables were used as a dependent variable and predictor variables respectively. The model performance was excellent with the area under curve (AUC) and true skill statistics (TSS) values of 0.96 and 0.85 respectively. The mean annual temperature (51.7%) and terrain ruggedness. index (31.6%) are the most important variables in predicting the current and future habitat distribution for P. africana. Our results show a decrease in suitable habitats for P. africana under all future representative concentration pathways scenario when compared with current distributions. These results have policy implications for over 22 countries of sub-Saharan Africa that are facing problems associated with the sustainability of this species. Institutional, policy, and conservation management approaches are proposed to support sustainable practices in favor of P. africana.

ACS Style

Richard Giliba; Genesis Yengoh. Predicting Suitable Habitats of the African Cherry (Prunus africana) under Climate Change in Tanzania. Atmosphere 2020, 11, 988 .

AMA Style

Richard Giliba, Genesis Yengoh. Predicting Suitable Habitats of the African Cherry (Prunus africana) under Climate Change in Tanzania. Atmosphere. 2020; 11 (9):988.

Chicago/Turabian Style

Richard Giliba; Genesis Yengoh. 2020. "Predicting Suitable Habitats of the African Cherry (Prunus africana) under Climate Change in Tanzania." Atmosphere 11, no. 9: 988.

Journal article
Published: 16 July 2020 in Atmosphere
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Agricultural production in sub-Saharan Africa remains dependent on high inputs of human labor, a situation associated with direct exposure to daylight heat during critical periods of the agricultural calendar. We ask the question: how is the Wet-Bulb Globe Temperature (WBGT) going to be distributed in the future, and how will this affect the ability of smallholder farmers to perform agricultural activities? Data from general circulation models are used to estimate the distribution of WBGT in 2000, 2050 and 2100, and for high activity periods in the agricultural calendar. The distribution of WBGT is divided into recommended maximum WBGT exposure levels (°C) at different work intensities, and rest/work ratios for an average acclimatized worker wearing light clothing (ISO, 18). High WBGTs are observed during the two periods of the East African. In February to March, eastern and coastal regions of Kenya and Tanzania witness high WBGT values—some necessitating up to 75% rest/hour work intensities in 2050 and 2100. In August to September, eastern and northern Kenya and north and central Uganda are vulnerable to high WBGT values. Designing policies to address this key challenge is a critical element in adaptation methods to address the impact of climate change.

ACS Style

Genesis Tambang Yengoh; Jonas Ardö. Climate Change and the Future Heat Stress Challenges among Smallholder Farmers in East Africa. Atmosphere 2020, 11, 753 .

AMA Style

Genesis Tambang Yengoh, Jonas Ardö. Climate Change and the Future Heat Stress Challenges among Smallholder Farmers in East Africa. Atmosphere. 2020; 11 (7):753.

Chicago/Turabian Style

Genesis Tambang Yengoh; Jonas Ardö. 2020. "Climate Change and the Future Heat Stress Challenges among Smallholder Farmers in East Africa." Atmosphere 11, no. 7: 753.

Reference work
Published: 13 May 2020 in Encyclopedia of the UN Sustainable Development Goals
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Land degradation refers to the human-induced processes that drive the decline or loss in biodiversity, ecosystem functions, or ecosystem services in any terrestrial and associated aquatic ecosystems...

ACS Style

Genesis Tambang Yengoh. Impact of Land Degradation on Rural Livelihoods in Sub-Saharan Africa. Encyclopedia of the UN Sustainable Development Goals 2020, 1 -15.

AMA Style

Genesis Tambang Yengoh. Impact of Land Degradation on Rural Livelihoods in Sub-Saharan Africa. Encyclopedia of the UN Sustainable Development Goals. 2020; ():1-15.

Chicago/Turabian Style

Genesis Tambang Yengoh. 2020. "Impact of Land Degradation on Rural Livelihoods in Sub-Saharan Africa." Encyclopedia of the UN Sustainable Development Goals , no. : 1-15.

Journal article
Published: 25 August 2017 in Resources
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The Lake Chad Basin has for a very long period supported the livelihoods of millions of peoples from the different countries that share this transboundary water resource. Its shrinking over the decades has meant that many of those who depend on it for livelihoods would have to adjust to the changing resource environment of this lake basin. This study sets out to examine the seasonal migration of people in search of water, pasture, fuelwood and cultivable land, and how this movement affects access and use of basin resources. The study made use of survey data obtained from 220 household heads on the Cameroon side of the Lake Chad basin, and secondary data from Cameroon ministries in charge of agriculture, the environment, and that of livestock. Our findings show that while fishing and livestock rearing continue to feature among the oldest determinants of population movements in the Lake Chad basin, increasingly the search for new farming opportunities made available by a shrinking lake and the political instability emanating from Nigeria are also becoming an important determinant. The increasing population in the lake region is compounding pressures created by a shrinking lake on access to water, fuelwood, pasture, and farmland. While there is potential to develop and benefit from the agricultural possibilities emerging from a shrinking lake, the impacts of poor agricultural resource management (especially land degradation, loss of agricultural biodiversity, and poor water management) may hamper the sustainable practice of agriculture if proper efforts are not made to address them. This study contributes to the scientific understanding of the changing nature of environmental resources in Africa. It specifically contributes to understanding the exacerbating threats to the sustainability of natural resources (water, agricultural and grazing land) caused by environmental changes, diversification of rural actors (fishers, farmers, breeders), weak resource management, and since 2013, by an armed conflict.

ACS Style

Felix Watang Zieba; Genesis Tambang Yengoh; Abdouraman Tom. Seasonal Migration and Settlement around Lake Chad: Strategies for Control of Resources in an Increasingly Drying Lake. Resources 2017, 6, 41 .

AMA Style

Felix Watang Zieba, Genesis Tambang Yengoh, Abdouraman Tom. Seasonal Migration and Settlement around Lake Chad: Strategies for Control of Resources in an Increasingly Drying Lake. Resources. 2017; 6 (3):41.

Chicago/Turabian Style

Felix Watang Zieba; Genesis Tambang Yengoh; Abdouraman Tom. 2017. "Seasonal Migration and Settlement around Lake Chad: Strategies for Control of Resources in an Increasingly Drying Lake." Resources 6, no. 3: 41.

Journal article
Published: 23 February 2017 in Journal of Environmental Planning and Management
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Frederick Ato Armah; Genesis T. Yengoh; Mengieng Ung; Isaac Luginaah; Ratana Chuenpagdee; Gwyn Campbell. The unusual suspects? Perception of underlying causes of anthropogenic climate change in coastal communities in Cambodia and Tanzania. Journal of Environmental Planning and Management 2017, 60, 2150 -2173.

AMA Style

Frederick Ato Armah, Genesis T. Yengoh, Mengieng Ung, Isaac Luginaah, Ratana Chuenpagdee, Gwyn Campbell. The unusual suspects? Perception of underlying causes of anthropogenic climate change in coastal communities in Cambodia and Tanzania. Journal of Environmental Planning and Management. 2017; 60 (12):2150-2173.

Chicago/Turabian Style

Frederick Ato Armah; Genesis T. Yengoh; Mengieng Ung; Isaac Luginaah; Ratana Chuenpagdee; Gwyn Campbell. 2017. "The unusual suspects? Perception of underlying causes of anthropogenic climate change in coastal communities in Cambodia and Tanzania." Journal of Environmental Planning and Management 60, no. 12: 2150-2173.

Research article
Published: 20 April 2016 in Journal of Environmental Planning and Management
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With urban populations worldwide expected to witness substantial growth over the next decades, pressure on urban land and resources is projected to increase in response. For policy-makers to adequately meet the challenges brought about by changes in the dynamics of urban areas, it is important to clearly identify and communicate their causes. Floods in Douala (the most densely populated city in the central African sub-region), are being associated chiefly with changing rainfall patterns, resulting from climate change in major policy circles. We investigate this contention using statistical analysis of daily rainfall time-series data covering the period 1951–2008, and tools of geographic information systems. Using attributes such as rainfall anomalies, trends in the rainfall time series, daily rainfall maxima and rainfall intensity–duration–frequency, we find no explanation for the attribution of an increase in the occurrences and severity of floods to changing rainfall patterns. The culprit seems to be the massive increase in the population of Douala, in association with poor planning and investment in the city's infrastructure. These demographic changes and poor planning have occurred within a physical geography setting that is conducive for the inducement of floods. Failed urban planning in Cameroon since independence set the city up for a flood-prone land colonization. This today translates to a situation in which large portions of the city's surface area and the populations they harbor are vulnerable to the city's habitual annual floods. While climate change stands to render the city even more vulnerable to floods, there is no evidence that current floods can be attributed to the changes in patterns of rainfall being reported in policy and news domains.

ACS Style

Genesis Tambang Yengoh; Zephania N. Fogwe; Frederick Armah. Floods in the Douala metropolis, Cameroon: attribution to changes in rainfall characteristics or planning failures? Journal of Environmental Planning and Management 2016, 60, 204 -230.

AMA Style

Genesis Tambang Yengoh, Zephania N. Fogwe, Frederick Armah. Floods in the Douala metropolis, Cameroon: attribution to changes in rainfall characteristics or planning failures? Journal of Environmental Planning and Management. 2016; 60 (2):204-230.

Chicago/Turabian Style

Genesis Tambang Yengoh; Zephania N. Fogwe; Frederick Armah. 2016. "Floods in the Douala metropolis, Cameroon: attribution to changes in rainfall characteristics or planning failures?" Journal of Environmental Planning and Management 60, no. 2: 204-230.

Journal article
Published: 01 January 2016 in Land Use Policy
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Enticing economic benefits for host nations and the notion of large areas of land considered available are often put forward as the main reasons for large-scale land acquisition in many areas of sub-Saharan Africa. However, country-level datasets of land acquisitions seem to indicate a clear divide between a majority of countries engaged in land acquisitions as investors and those involved as targets. We posit that there are socio-economic and governance factors that make the engagement between targets of land acquisitions and investors both unequal and attractive to large-scale investments. We then ask the question: what are the factors that make communities vulnerable to an unequal engagement with large-scale land-investing interests in Sierra Leone? We explore this question using local-level socio-economic data of households and communities in two settings where land acquisitions have occurred in Sierra Leone. We find that socio-economic characteristics of local populations, such as levels of education, the powerful role of traditional chiefs and corruption, make these areas easier targets for such land investments. Investors also exploit the poor economic situation of local areas by making alluring promises of development opportunities. The vulnerability of local people to land investors is further undermined by poor governance at the national level and external politico-financial interest in favor of such investments. Local populations are vulnerable to organized campaigns of land acquisitions by multi-national companies. Proper legal and institutional frameworks are required to protect local interests in these land deals. (C) 2015 Elsevier Ltd. All rights reserved

ACS Style

Genesis Tambang Yengoh; Karin Steen; Frederick Ato Armah; Barry Ness. Factors of vulnerability: How large-scale land acquisitions take advantage of local and national weaknesses in Sierra Leone. Land Use Policy 2016, 50, 328 -340.

AMA Style

Genesis Tambang Yengoh, Karin Steen, Frederick Ato Armah, Barry Ness. Factors of vulnerability: How large-scale land acquisitions take advantage of local and national weaknesses in Sierra Leone. Land Use Policy. 2016; 50 ():328-340.

Chicago/Turabian Style

Genesis Tambang Yengoh; Karin Steen; Frederick Ato Armah; Barry Ness. 2016. "Factors of vulnerability: How large-scale land acquisitions take advantage of local and national weaknesses in Sierra Leone." Land Use Policy 50, no. : 328-340.

Journal article
Published: 17 July 2015 in Sustainability
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The recent phenomenon of large-scale acquisition of land for a variety of investment purposes has raised deep concerns over the food security, livelihood and socio-economic development of communities in many regions of the developing world. This study set out to investigate the food security outcomes of land acquisitions in northern Sierra Leone. Using a mixture of quantitative and qualitative research methods, the study measures the severity of food insecurity and hunger, compares the situation of food security before and after the onset of operations of a land investing company, analyzes the food security implications of producing own food versus depending on wage labour for household food needs, and evaluates initiatives put in place by the land investing company to mitigate its food insecurity footprint. Results show an increase in the severity of food insecurity and hunger. Household income from agricultural production has fallen. Employment by the land investing company is limited in terms of the number of people it employs relative to the population of communities in which it operates. Also, wages from employment by the company cannot meet the staple food needs of its employees. The programme that has been put in place by the company to mitigate its food insecurity footprint is failing because of a host of reasons that relate to organization and power relations. In conclusion, rural people are better off producing their own food than depending on the corporate structure of land investment companies. Governments should provide an enabling framework to accommodate this food security need, both in land investment operations that are ongoing and in those that are yet to operate.

ACS Style

Genesis Tambang Yengoh; Frederick Ato Armah. Effects of Large-Scale Acquisition on Food Insecurity in Sierra Leone. Sustainability 2015, 7, 9505 -9539.

AMA Style

Genesis Tambang Yengoh, Frederick Ato Armah. Effects of Large-Scale Acquisition on Food Insecurity in Sierra Leone. Sustainability. 2015; 7 (7):9505-9539.

Chicago/Turabian Style

Genesis Tambang Yengoh; Frederick Ato Armah. 2015. "Effects of Large-Scale Acquisition on Food Insecurity in Sierra Leone." Sustainability 7, no. 7: 9505-9539.

Journal article
Published: 11 April 2015 in Gender Issues
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Women farmers make up a majority of small-scale food producers in sub-Saharan Africa. Despite their important role in the food and livelihood security of their households and communities, women continue to face substantial challenges in their rights of and access to land resources in the region. In a number of countries such as Sierra Leone where large-scale land acquisition is ongoing, we posit that women’s predicament may further deteriorate. Using data drawn from a survey of household and livelihood activities, focus groups and interviews we examine the outcomes of large-scale land acquisitions on women at the local level in two districts in Sierra Leone. We found that first, women depend more on land-based natural resources that directly affect the day-to-day welfare of households (such as firewood and medicinal plants) than men. Second, land acquisitions have led to a significant fall in the incomes of women and men. The effects of the fall of women’s income have more direct and profound consequences on household wellbeing compared with men. Third, men tend to rank the effects of land acquisitions on women lower than women do. We conclude that current social and cultural norms and women’s role in rural societies is complex and predisposes women to negative livelihood processes and outcomes associated with large-scale land acquisitions. Policy interventions designed to address local and national challenges to socio-economic and cultural development should recognize the crucial role played by women and be responsive to their special needs.

ACS Style

Genesis Tambang Yengoh; Frederick Ato Armah; Karin Steen. Women’s Bigger Burden: Disparities in Outcomes of Large Scale Land Acquisition in Sierra Leone. Gender Issues 2015, 32, 221 -244.

AMA Style

Genesis Tambang Yengoh, Frederick Ato Armah, Karin Steen. Women’s Bigger Burden: Disparities in Outcomes of Large Scale Land Acquisition in Sierra Leone. Gender Issues. 2015; 32 (4):221-244.

Chicago/Turabian Style

Genesis Tambang Yengoh; Frederick Ato Armah; Karin Steen. 2015. "Women’s Bigger Burden: Disparities in Outcomes of Large Scale Land Acquisition in Sierra Leone." Gender Issues 32, no. 4: 221-244.

Journal article
Published: 03 April 2015 in Journal of Integrative Environmental Sciences
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The impacts of climate change are likely to exacerbate many problems that coastal areas already face. In this study, we used multinomial logistic regression to examine human perception of climate change based on a cross-sectional survey of 1253 individuals in coastal regions of Tanzania. This was complemented with time series analysis of 50-year meteorological data. The results indicate that self-rated ability to handle work pressure, self-rated ability to handle personal pressure and unexpected difficulties, age, region and educational status were significant predictors of perceived temperature change unlike ethnicity and gender. A disproportionately large percentage of respondents of all ages indicated that temperature was getting hotter between the past 10 and 30 years. This observation was supported by the time series analysis. Although respondents also alluded to changes in rainfall patterns in the past 10–30 years, time series analysis of rainfall revealed a different scenario except for Mtwara region of Tanzania. Because there is agreement between respondents' perceptions of temperature and available scientific climatic evidence over the 50-year period, this study argues that when meteorological records are incomplete or unavailable, local perceptions of climatic changes can be used to complement scientific climatic evidence. Based on the spatial differentials in climate change perception observed in this study, there is opportunity for a more locally oriented adaptation dimension to climate policy integration, which has hitherto been underserved by both academics and policymakers.

ACS Style

Frederick Ato Armah; Genesis T. Yengoh; Isaac Luginaah; Ratana Chuenpagdee; Herbert Hambati; Gwyn Campbell. Monitored versus experience-based perceptions of environmental change: evidence from coastal Tanzania. Journal of Integrative Environmental Sciences 2015, 12, 119 -152.

AMA Style

Frederick Ato Armah, Genesis T. Yengoh, Isaac Luginaah, Ratana Chuenpagdee, Herbert Hambati, Gwyn Campbell. Monitored versus experience-based perceptions of environmental change: evidence from coastal Tanzania. Journal of Integrative Environmental Sciences. 2015; 12 (2):119-152.

Chicago/Turabian Style

Frederick Ato Armah; Genesis T. Yengoh; Isaac Luginaah; Ratana Chuenpagdee; Herbert Hambati; Gwyn Campbell. 2015. "Monitored versus experience-based perceptions of environmental change: evidence from coastal Tanzania." Journal of Integrative Environmental Sciences 12, no. 2: 119-152.

Journal article
Published: 02 December 2014 in Human and Ecological Risk Assessment: An International Journal
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Climate change is considered as the biggest threat to human health in the 21st century. Sub-Saharan Africa, which is the most-at-risk region of the world, is estimated to have a disproportionately large share of the burden of climate change-induced environmental and human health risks. To develop effective adaptations to protect public health, it is essential to consider how individuals perceive and understand the risks, and how they might be willing to change their behaviors in response to them. Using a cross-sectional survey of 1253 individuals in coastal Tanzania we analyzed the relationship between subjective health status (self-reported health) and objective health status on the one hand and perceived health risks of climate change. Generally, higher subjective health status was associated with lower scores on perceived health risks of climate change. Concerning objective health status, the results were varied. Individuals who affirmed that they had been previously diagnosed with hepatitis, skin conditions, or tuberculosis had lower scores on perceived health risks of climate change, unlike their counterparts who affirmed that they had been previously diagnosed with malaria in the past 12 months or had been diagnosed with HIV/AIDS. These relationships persist even when biosocial and sociocultural attributes are taken into consideration. The results underscore the complex ways in which objective and subjective health interact with both biosocial and sociocultural factors to shape perceived health risks of climate change

ACS Style

Frederick Armah; Isaac Luginaah; Genesis T. Yengoh; Herbert Hambati; Ratana Chuenpagdee; Gwyn Campbell. Analyzing the Relationship between Objective–Subjective Health Status and Public Perception of Climate Change as a Human Health Risk in Coastal Tanzania. Human and Ecological Risk Assessment: An International Journal 2014, 21, 1936 -1959.

AMA Style

Frederick Armah, Isaac Luginaah, Genesis T. Yengoh, Herbert Hambati, Ratana Chuenpagdee, Gwyn Campbell. Analyzing the Relationship between Objective–Subjective Health Status and Public Perception of Climate Change as a Human Health Risk in Coastal Tanzania. Human and Ecological Risk Assessment: An International Journal. 2014; 21 (7):1936-1959.

Chicago/Turabian Style

Frederick Armah; Isaac Luginaah; Genesis T. Yengoh; Herbert Hambati; Ratana Chuenpagdee; Gwyn Campbell. 2014. "Analyzing the Relationship between Objective–Subjective Health Status and Public Perception of Climate Change as a Human Health Risk in Coastal Tanzania." Human and Ecological Risk Assessment: An International Journal 21, no. 7: 1936-1959.

Journal article
Published: 01 November 2014 in GeoJournal
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While national figures of land availability are used to justify accepting large-scale land investors, not very much is known about the local level realities of land availability. By combining remotely sensed data with fieldwork, system dynamics modelling and qualitative research methods, we examine local level realities of land use and availability in the Malen Chiefdom of Southern Sierra Leone. Here, local communities are experiencing the outcomes of large-scale investments in oil palm for biodiesel and other industrial purposes by the SOCFIN Agricultural Company. We find that beyond agricultural production, there are other land uses that are vital for the socio-cultural, economic and environmental realities of communities. The Company does not respect engagements promised to local people to set aside buffer zones around living areas to serve as biodiversity corridors. Local communities are severely deprived of agricultural land and other land resources. The operations of SOCFIN do not take account of present or future land needs of local people. A baseline requirement of food crop land should be set aside for each community, to ensure the attainment of food security in communities affected by land acquisitions. Such baseline requirement should be augmented with local level needs assessments to meet new demand for cropland necessitated by changing demography. This model of land planning can be applied to other land use and additional engagements of large-scale land investors.

ACS Style

Genesis Tambang Yengoh; Frederick Ato Armah. Land access constraints for communities affected by large-scale land acquisition in Southern Sierra Leone. GeoJournal 2014, 81, 103 -122.

AMA Style

Genesis Tambang Yengoh, Frederick Ato Armah. Land access constraints for communities affected by large-scale land acquisition in Southern Sierra Leone. GeoJournal. 2014; 81 (1):103-122.

Chicago/Turabian Style

Genesis Tambang Yengoh; Frederick Ato Armah. 2014. "Land access constraints for communities affected by large-scale land acquisition in Southern Sierra Leone." GeoJournal 81, no. 1: 103-122.

Journal article
Published: 26 September 2013 in Journal of Environmental Planning and Management
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Frederick Armah; Isaac Luginaah; Genesis T. Yengoh; Joseph Taabazuing; David O. Yawson. Management of natural resources in a conflicting environment in Ghana: unmasking a messy policy problem. Journal of Environmental Planning and Management 2013, 57, 1724 -1745.

AMA Style

Frederick Armah, Isaac Luginaah, Genesis T. Yengoh, Joseph Taabazuing, David O. Yawson. Management of natural resources in a conflicting environment in Ghana: unmasking a messy policy problem. Journal of Environmental Planning and Management. 2013; 57 (11):1724-1745.

Chicago/Turabian Style

Frederick Armah; Isaac Luginaah; Genesis T. Yengoh; Joseph Taabazuing; David O. Yawson. 2013. "Management of natural resources in a conflicting environment in Ghana: unmasking a messy policy problem." Journal of Environmental Planning and Management 57, no. 11: 1724-1745.

Journal article
Published: 08 August 2013 in Ambio
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The online version of this article (doi:10.1007/s13280-013-0428-0) contains supplementary material, which is available to authorized users.

ACS Style

Genesis T. Yengoh; Jonas Ardö. Crop Yield Gaps in Cameroon. Ambio 2013, 43, 175 -190.

AMA Style

Genesis T. Yengoh, Jonas Ardö. Crop Yield Gaps in Cameroon. Ambio. 2013; 43 (2):175-190.

Chicago/Turabian Style

Genesis T. Yengoh; Jonas Ardö. 2013. "Crop Yield Gaps in Cameroon." Ambio 43, no. 2: 175-190.

Journal article
Published: 30 July 2013 in GeoJournal
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While a bottom-up approach to identifying problems affecting food production among small-scale farmers has been urged as an appropriate means of finding sustainable solutions, few studies have determined the practical process of doing so and measured the outcomes of such an approach. This paper uses information gained mainly through focus groups with small-scale farmers and semi-structured interviews, to identify farmers' perceptions of reasons behind low yields and low agricultural production in three communities of Cameroon's North West region. Three biophysical factors are identified as the main reasons of low production: the long and more frequent dry spells and late start of the start of the rainy season. Three socio-economic reasons are identified as most important: land scarcity, money to invest in agriculture and labour scarcity. Farmers rank their reasons based on the importance to their agricultural production in their local area. Some of the important claims made by farmers are tested using field data and statistical analysis. These include the claims that: (1) the rainy season is increasingly starting later than it used to; and (2) the length of dry spells are increasingly longer than they used to be. The results of these statistical tests are significant, showing that farmers' knowledge of some of the local problems affecting their activities can serve as an important input into formal research and policy design. Peoples' understanding of a problem affects the way they will act on it-in terms of searching for solutions and implementing change. Farmers can therefore provide useful insights on why they think there are large yield gaps within their local production environments. The current agricultural development policy of the Cameroon government is advocating greater public-private engagement and can benefit from farmers' inputs and opinions in the design of relevant policies. In the same light, nonlocal based researchers and research institutions can draw on farmers' knowledge to create and accumulate knowledge on sustainable solutions to problems of low yields and low food production in Cameroon

ACS Style

Genesis Tambang Yengoh; Sara Brogaard. Explaining low yields and low food production in Cameroon: a farmers’ perspective. GeoJournal 2013, 79, 279 -295.

AMA Style

Genesis Tambang Yengoh, Sara Brogaard. Explaining low yields and low food production in Cameroon: a farmers’ perspective. GeoJournal. 2013; 79 (3):279-295.

Chicago/Turabian Style

Genesis Tambang Yengoh; Sara Brogaard. 2013. "Explaining low yields and low food production in Cameroon: a farmers’ perspective." GeoJournal 79, no. 3: 279-295.

Journal article
Published: 27 December 2012 in Sustainability
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Just how influential is rainfall on agricultural production in the Sudan-Sahel of Africa? And, is there evidence that support for small-scale farming can reduce the vulnerability of crop yields to rainfall in these sensitive agro-ecological zones? These questions are explored based on a case study from Cameroon’s Sudan-Sahel region. Climate data for 20 years and crop production data for six major food crops for the same years are used to find patterns of correlation over this time period. Results show a distinction of three periods of climatic influence of agriculture: one period before 1989, another between 1990 and 1999 and the last from 2000 to 2004. The analysis reveals that, while important in setting the enabling biophysical environment for food crop cultivation, the influence of rainfall in agriculture can be diluted by proactive policies that support food production. Proactive policies also reduce the impact of agriculturally relevant climatic shocks, such as droughts on food crop yields over the time-series. These findings emphasize the extent of vulnerability of food crop production to rainfall variations among small-holder farmers in these agro-ecological zones and reinforce the call for the proactive engagement of relevant institutions and support services in assisting the efforts of small-scale food producers in Africa’s Sudan-Sahel. The implications of climate variability on agriculture are discussed within the context of food security with particular reference to Africa’s Sudan-Sahel.

ACS Style

Genesis T. Yengoh. Climate and Food Production: Understanding Vulnerability from Past Trends in Africa’s Sudan-Sahel. Sustainability 2012, 5, 52 -71.

AMA Style

Genesis T. Yengoh. Climate and Food Production: Understanding Vulnerability from Past Trends in Africa’s Sudan-Sahel. Sustainability. 2012; 5 (1):52-71.

Chicago/Turabian Style

Genesis T. Yengoh. 2012. "Climate and Food Production: Understanding Vulnerability from Past Trends in Africa’s Sudan-Sahel." Sustainability 5, no. 1: 52-71.

Journal article
Published: 01 December 2012 in Agriculture & Food Security
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In sub-Saharan Africa, small-scale farmers make up the majority of food producers. While recognizing that the yields per hectare for main food crops are generally low in small-scale food production systems in this region, there are considerable differences in yield output among individual farmers. At the very local scale, why do these differences exist? By examining factors that are associated with yield differences, policy can be better informed and tailored to respond to challenges of food production among this important group of producers.

ACS Style

Genesis T Yengoh. Determinants of yield differences in small-scale food crop farming systems in Cameroon. Agriculture & Food Security 2012, 1, 19 .

AMA Style

Genesis T Yengoh. Determinants of yield differences in small-scale food crop farming systems in Cameroon. Agriculture & Food Security. 2012; 1 (1):19.

Chicago/Turabian Style

Genesis T Yengoh. 2012. "Determinants of yield differences in small-scale food crop farming systems in Cameroon." Agriculture & Food Security 1, no. 1: 19.

Articles
Published: 11 March 2011 in Geocarto International
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The agro-climatic resources of Cameroon are examined in light of the potential for food crop production and challenges presented by climate change. We find that the diversity of Cameroon's agro-climate offers the potential for the cultivation of a variety of food crops. This feature of Cameroonian agriculture can be used in addressing the country's adaptive capacity to climate change. However, the Savanna zones of the country, which are its most productive, are also the most vulnerable to climate change. The main climate change challenge in these Savanna zones is that of drought and associated agricultural water demand. Appropriate management strategies to address agricultural water demand can also address important problems in Cameroonian agriculture, such as the effects of climatic uncertainties in small-scale food crop production and soil nutrient depletion. To ensure the success of these management strategies, a number of obstacles may have to be addressed.

ACS Style

Genesis Tambang Yengoh; Thomas Hickler; Augustin Tchuinte. Agro-climatic resources and challenges to food production in Cameroon. Geocarto International 2011, 26, 251 -273.

AMA Style

Genesis Tambang Yengoh, Thomas Hickler, Augustin Tchuinte. Agro-climatic resources and challenges to food production in Cameroon. Geocarto International. 2011; 26 (4):251-273.

Chicago/Turabian Style

Genesis Tambang Yengoh; Thomas Hickler; Augustin Tchuinte. 2011. "Agro-climatic resources and challenges to food production in Cameroon." Geocarto International 26, no. 4: 251-273.

Articles
Published: 24 January 2011 in Journal of Environmental Planning and Management
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The paper examines the laws and policies that regulate corporate environmental practices in Ghana, with an emphasis on mining. In particular, the analysis of the legal and regulatory framework examines the extent to which it meets international best practices and standards of corporate conduct and the extent to which self-regulatory mechanisms are accommodated under the framework. This was accomplished through reviews of mining and water related Acts, laws and relevant Statutes on corporate environmental practices in Ghana. Ethnographic qualitative research was carried out and key tools utilised included participant observations, focus group discussions and interviews. Interview data captured community members' perceptions on impacts of mining in 12 host communities. Key findings indicate that most respondents have negative perceptions about the socio-economic and environmental impacts of mining and where corporate environmental governance codes exist, enforcement mechanisms are not very well laid out, a situation which reflects weak regulatory institutions in the mining sector. Further, the legal and regulatory regime for environmental governance has failed to come up to international best practices. While government has an important role to play in the area of providing the legal framework for enhancing best practice standards in corporate environmental governance, it appears that the ultimate responsibility for sound environmental behaviour still lies with corporations themselves.

ACS Style

Frederick A. Armah; Samuel Obiri; David O. Yawson; Ernest K.A. Afrifa; Genesis T. Yengoh; Johanna Alkan Olsson; Justice O. Odoi. Assessment of legal framework for corporate environmental behaviour and perceptions of residents in mining communities in Ghana. Journal of Environmental Planning and Management 2011, 54, 193 -209.

AMA Style

Frederick A. Armah, Samuel Obiri, David O. Yawson, Ernest K.A. Afrifa, Genesis T. Yengoh, Johanna Alkan Olsson, Justice O. Odoi. Assessment of legal framework for corporate environmental behaviour and perceptions of residents in mining communities in Ghana. Journal of Environmental Planning and Management. 2011; 54 (2):193-209.

Chicago/Turabian Style

Frederick A. Armah; Samuel Obiri; David O. Yawson; Ernest K.A. Afrifa; Genesis T. Yengoh; Johanna Alkan Olsson; Justice O. Odoi. 2011. "Assessment of legal framework for corporate environmental behaviour and perceptions of residents in mining communities in Ghana." Journal of Environmental Planning and Management 54, no. 2: 193-209.