Hybrid Information Systems for Agriculture: The Case of Cattle Trypanosomiasis in Africa

1994 ◽  
Vol 23 (4) ◽  
pp. 261-267 ◽  
Author(s):  
Iain J. Mckendrick ◽  
George Gettinby ◽  
Yiqun Gu ◽  
Andrew Peregrine ◽  
Crawford Revie

Large scale population growth in sub-Saharan Africa makes it imperative to achieve an equivalent increase in food production in this area. It is also important that any increase be sustainable in the long-term, not causing lasting damage to local ecosystems. Recent advances in information technology make the successful diffusion of relevant expertise to farmers a more practical option than ever before. How this might be achieved is described in this paper, which considers the transfer of expertise in the diagnosis, treatment and management of trypanosomiasis in cattle. Using current technology, the combination of different software systems in one integrated hybrid system could allow the delivery of high quality, well focused information to the potential user.

2019 ◽  
Vol 34 (Supplement_1) ◽  
pp. S40-S45 ◽  
Author(s):  
Boris Gershman ◽  
Diego Rivera

Abstract This paper compares two approaches to measuring subnational ethnolinguistic diversity in Sub-Saharan Africa, one based on censuses and large-scale population surveys and the other relying on the use of geographic information systems (GIS). The two approaches yield sets of regional fractionalization indices that show a moderately positive correlation, with a stronger association across rural areas. These differences matter for empirical analysis: in a common sample of regions, survey-based indices of deep-rooted diversity show a more strongly negative association with a range of development indicators relative to their highest-quality GIS-based counterparts.


1986 ◽  
Vol 24 (2) ◽  
pp. 303-333 ◽  
Author(s):  
Zaki Ergas

The rapidly deteriorating social and economic situation in sub-Saharan Africa, and the need for large-scale action to reverse that ominous trend, are captured well in the following paragraph:It is becoming evident that Africa is in a state of breathtaking and grievous crisis whose… likes may not have been seen anywhere in the West since the 14th century Plague. Twenty-nine of the world's 36 poorest nations are to be found south of the Sahara desert… and 24 of them are now appealing for emergency aid to ward off famine… The percentage of Africans living in absolute poverty rose from 82 percent to 91 percent through the 1970s. In 1983 per capita food production was down by 14 percent from 1981. Five million Africans are currently refugees. Five million African children died this year; another five million were crippled by malnutrition and disease.


1994 ◽  
Vol 33 (4I) ◽  
pp. 463-496 ◽  
Author(s):  
Per Pinstrup Andersen ◽  
Rajul Pandya-Lorch

As the world's population increases by almost 100 million people each year during the next two to three decades-the largest annual population increase in history- agricultural intensification, i.e. production of more food on land already being cultivated, is a must. There is little scope for increasing cultivated land in Asia, North Africa, and Central America, while in Sub-Saharan Africa and South America, physical and technological constraints are likely to restrain large-scale conversion of potentially cultivable land [Dram and Hojjati (1994)]. Agricultural intensification is already the main source of increased food production. I Intensive use of chemical fertilizers, pesticides, and irrigation technology, in combination with higher-yielding crop varieties, has led to enough food being produced in the world such that if it were evenly distributed, no one would go hungry. Global food production per capita increased from about 260 kilograms (kgs) in 1950 to about 350 kgs in the early 1990s [FAD (1992)]. In developing countries the corresponding increase was from 170 kgs to 250 kgs.


Subject Outlook for deforestation in sub-Saharan Africa. Significance The UN Food and Agriculture Organisation's World Forestry Congress last week said that the world has lost 129 million hectares (ha) of forested area since 1990, mainly in tropical Africa and South America. Three of the ten states with the fastest declines since 2010 are in sub-Saharan Africa (SSA), due to demand for wood-fuel and timber for export. Much of the timber is traded illicitly, depriving states of revenue. Impacts Large-scale deforestation could undermine long-term climate change mitigation; forests are critical for absorbing carbon dioxide. The depletion of reserves of rare trees such as Madagascan rosewood will raise its value over time, boosting demand. Gabon's afforestation push -- it has gained 200,000 ha since 2010 due to state programmes -- will support eco-tourism.


2014 ◽  
Vol 6 (2-3) ◽  
pp. 315-335 ◽  
Author(s):  
Tomaso Ferrando

Abstract ‘Global land grabbing’ represents one of the hottest topics of debate within the areas of developmental and agricultural studies. However, this article claims that a narrow focus on the illegality and consequences of the ‘grabbing’, rather than on large scale investments in land (LaSIL) as a form of economic development which is inherently exclusionary, can be detrimental to the future of small-scale farmers. A short-term perspective overlooks the indirect consequences of industrialization, and legitimizes long-term exclusions and marginalization. Through past and present evidence, this paper demonstrates that LaSIL as competing projects will inevitably produce the abandonment of rural areas, the proletarianization of peasants, and the increase in social inequality, against any possibility for coexistence and harmonious cooperation.


2016 ◽  
Author(s):  
George Busby ◽  
Gavin Band ◽  
Quang Si Le ◽  
Muminatou Jallow ◽  
Edith Bougama ◽  
...  

Understanding patterns of genetic diversity is a crucial component of medical research in Africa. Here we use haplotype-based population genetics inference to describe gene-flow and admixture in a collection of 48 African groups with a focus on the major populations of the sub-Sahara. Our analysis presents a framework for interpreting haplotype diversity within and between population groups and provides a demographic foundation for genetic epidemiology in Africa. We show that coastal African populations have experienced an influx of Eurasian haplotypes as a series of admixture events over the last 7,000 years, and that Niger-Congo speaking groups from East and Southern Africa share ancestry with Central West Africans as a result of recent population expansions associated with the adoption of new agricultural technologies. We demonstrate that most sub-Saharan populations share ancestry with groups from outside of their current geographic region as a result of large-scale population movements over the last 4,000 years. Our in-depth analysis of admixture provides an insight into haplotype sharing across different geographic groups and the recent movement of alleles into new climatic and pathogenic environments, both of which will aid the interpretation of genetic studies of disease in sub-Saharan Africa.


2018 ◽  
Vol 1 (1) ◽  
pp. 7 ◽  
Author(s):  
Jorge Ferrão ◽  
Victoria Bell ◽  
Luis Alfaro Cardoso ◽  
Tito Fernandes

The objective of this short review is to contribute to the debate on the role of agriculture transformation in the development process and as an engine to reduce poverty and improve general wellbeing through better access to nutrients in Mozambique. Agricultural services are organized by Provinces but still there is no accurate data on food production, consumption and trade trends in a large sample. It is recognized the complexity of the food security concept and the need of a multidimensional definition and approach. The increase in agricultural productivity can probably be seen as a necessary but not a sufficient condition to achieve long term food security in Mozambique or Sub-Saharan Africa.  Competing views about the relevance of agriculture for growth and development imply different policy priorities in Africa.


Author(s):  
Boubacar Diallo ◽  
Fulbert Tchana Tchana ◽  
Albert G. Zeufack

2021 ◽  
Vol 13 (3) ◽  
pp. 1158
Author(s):  
Cecilia M. Onyango ◽  
Justine M. Nyaga ◽  
Johanna Wetterlind ◽  
Mats Söderström ◽  
Kristin Piikki

Opportunities exist for adoption of precision agriculture technologies in all parts of the world. The form of precision agriculture may vary from region to region depending on technologies available, knowledge levels and mindsets. The current review examined research articles in the English language on precision agriculture practices for increased productivity among smallholder farmers in Sub-Saharan Africa. A total of 7715 articles were retrieved and after screening 128 were reviewed. The results indicate that a number of precision agriculture technologies have been tested under SSA conditions and show promising results. The most promising precision agriculture technologies identified were the use of soil and plant sensors for nutrient and water management, as well as use of satellite imagery, GIS and crop-soil simulation models for site-specific management. These technologies have been shown to be crucial in attainment of appropriate management strategies in terms of efficiency and effectiveness of resource use in SSA. These technologies are important in supporting sustainable agricultural development. Most of these technologies are, however, at the experimental stage, with only South Africa having applied them mainly in large-scale commercial farms. It is concluded that increased precision in input and management practices among SSA smallholder farmers can significantly improve productivity even without extra use of inputs.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sándor Szabó ◽  
Irene Pinedo Pascua ◽  
Daniel Puig ◽  
Magda Moner-Girona ◽  
Mario Negre ◽  
...  

AbstractLack of access to modern forms of energy hampers efforts to reduce poverty. The provision of electricity to off-grid communities is therefore a long-standing developmental goal. Yet, many off-grid electrification projects neglect mid- and long-term operation and maintenance costs. When this is the case, electricity services are unlikely to be affordable to the communities that are the project’s primary target. Here we show that, compared with diesel-powered electricity generation systems, solar photovoltaic systems are more affordable to no less than 36% of the unelectrified populations in East Asia, South Asia, and sub-Saharan Africa. We do so by developing geo-referenced estimates of affordability at a high level of resolution (1 km2). The analysis illustrates the differences in affordability that may be found at the subnational level, which underscores that electrification investments should be informed by subnational data.


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