Cropland expansion and productivity reduction in Malawi monitored by using Satellite data

Author(s):  
Chengxiu Li ◽  
Jadu Dash

<p>With rising demand for food in Sub-Saharan Africa (SSA), cropland expansion represents the main strategy to boost agricultural production. However, cropland expansion is not a sustainable form of agricultural development as there is limited arable land and increasing soil degradation in SSA. Cropland expansion needs to be monitored in order to focus intervention and propose alternatives. In this study, we monitor agriculture expansion over the past decades across Malawi using Landsat satellite data and explore factors that can explain expansion using Malawi integrated household survey data. The preliminary results showed that cropland expansion has widely occurred across the country, and the newly expanded croplands have higher productivity compared to the croplands with long cultivation history. We also found that estate agricultural land contributes to 40% of the expanded area and the level of irrigation is negatively correlated to expansion, being the dominant factors that are associated with expansion in Malawi. The results will further help to offer localized information for policy making and to develop strategies for conserving land.</p><p> </p>

Author(s):  
Jordan Chamberlin ◽  
James Sumberg

Abstract This chapter uses household survey data to address three questions: How might we think about the notion that the youth bring something new to farming? What aspects of young people's farming are visible with existing empirical windows? Do the young in sub-Saharan Africa (SSA) farm differently? The analysis provides some support for many of the stylized assertions about the youth in African agriculture. Young households are associated with marginally higher propensities for engaging with intensification practices and commercial orientations. However, the very limited magnitude of these age effects suggests much caution should be exercised in making the argument that young people's inherent vim and vigour are important and underutilized assets for agricultural growth and transformation in SSA.


2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Mathieu Maheu-Giroux ◽  
Véronique Filippi ◽  
Nathalie Maulet ◽  
Sékou Samadoulougou ◽  
Marcia C. Castro ◽  
...  

2015 ◽  
Vol 3 (5) ◽  
pp. e271-e278 ◽  
Author(s):  
Mathieu Maheu-Giroux ◽  
Véronique Filippi ◽  
Sékou Samadoulougou ◽  
Marcia C Castro ◽  
Nathalie Maulet ◽  
...  

Oryx ◽  
2020 ◽  
pp. 1-10
Author(s):  
P. Christy Pototsky ◽  
Will Cresswell

Abstract We tested if peer-reviewed conservation research output has increased in sub-Saharan African countries over the last 30 years in response to increased development. We carried out a bibliometric analysis to identify the number of conservation research papers published by national authors of 41 sub-Saharan African countries during 1987–2017, to provide an index of national conservation research output. We identified country-specific development factors influencing these totals, using general linear modelling. There were positive relationships between conservation research output and population size, GDP, literacy rate, international tourism receipts and population growth rate, and negative relationships with urban population and agricultural land cover, in total explaining 77% of variation. Thirty-eight per cent of countries contributed < 30 conservation research papers (of 12,701) in 30 years. Analysis of trends in primary authorship in a random subsample of 2,374 of these papers showed that primary authorship by sub-Saharan African authors has increased significantly over time but is now at a lower rate than primary authorship for authors from countries outside the country associated with the search term, usually a European or North American country. Overall, 46% of papers had national primary authors, but 67% of these were South African. The results show that conservation research output in sub-Saharan Africa overall is increasing but only significantly in a few countries, and is still dominated by non-national scientists, probably as a result of a lack of socio-economic development.


Food Security ◽  
2020 ◽  
Author(s):  
Emmanuel Olatunbosun Benjamin ◽  
Oreoluwa Ola ◽  
Hannes Lang ◽  
Gertrud Buchenrieder

AbstractThe Growth Enhancement Scheme and e-voucher program, rolled out across Nigeria in 2011 by the federal government, provided the institutional basis for private agro-dealers to engage in the distribution of subsidized fertilizer, improved seeds and extension services to farmers. However, the impact of this policy on different modes of extension service delivery is still missing in literature. We apply an Ordinary Least Squared and Difference-in-Difference methodology on the (2010 and 2012) Living Standard Measurement Study of the World Bank. The results suggest that extension visitations as well as public extension services positively influence farm revenue. Furthermore, a substantial increase in fertilizer expenditure by farmers was observed, due to the e-voucher program, which could have contributed to the improved agricultural output witnessed in Nigeria post-Growth Enhancement Scheme era. Governments across Sub-Saharan Africa should implement policies that harness the economy of scale and scope of the private sector as well as information and communication technologies in delivering on time and adequate agricultural inputs to farmers.


1988 ◽  
Vol 17 (1) ◽  
pp. 33-33
Author(s):  
Michael F. Lofchie ◽  
Gleb V. Smirnov

A critical problem for Africa is that of food production and distribution, highlighted by declines in food production, widespread hunger, and famine. There are several interrelated sources of this problem, both domestic and external. Among them are ecological problems, engendered by climatic and natural conditions; land fertility depletion in many regions of sub-Saharan Africa; the extreme scarcity of financial resources, accentuated by the debt burden and falling terms of trade; a deficit of investment goods and research and development facilities needed for agricultural development; and weaknesses in rural infrastructure, both economic and social. Unbalanced interaction between the rural and urban economies as well as archaic socioeconomic structures play a major role in the problems of food distribution, with consequent effects on food production.


Author(s):  
Derek Asuman ◽  
Charles Godfred Ackah ◽  
Frank Agyire-Tettey

AbstractPersons with disabilities face substantial barriers that impede their integration and participation in social and economic activities. Households with disabled members may be vulnerable to poverty due to the extra cost of living with a disability. However, there exists a knowledge gap in the magnitude of the extra cost of disabilities in sub Saharan Africa. Using data from a nationally representative household survey, this paper estimates the extra cost of disabilities in Ghana. The paper further examines the welfare effects of households with persons with disabilities. Based on the standard of living approach, we estimate the extra cost to households with a person with disability to be 26% of annual household consumption expenditures. Adjusting for the extra cost of poverty, the incidence of poverty increases from 38.5 to 52.9% amongst households with a disabled member. Our findings suggest the need to improve the efficiency of support programs to persons with disabilities to mitigate the extra costs of disabilities and reduce their vulnerability to poverty. In addition, enhancing access to economic opportunities and social services for persons with disabilities will be imperative to improve their quality of life and dignity.


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