Résultats de la recherche
Showing items 1 through 9 of 37.-
Library ResourceArticles et Livresdécembre, 2018Algérie, Burkina Faso, Nigéria, Mauritanie, Mali, Éthiopie, Érythrée, Cameroun, Soudan du Sud, République centrafricaine, Sénégal, Tchad, Niger, Soudan
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Library ResourceArticles et Livresdécembre, 2018Algérie, Burkina Faso, Nigéria, Mauritanie, Mali, Éthiopie, Érythrée, Cameroun, Soudan du Sud, République centrafricaine, Sénégal, Tchad, Niger, Soudan, Afrique occidentale, Afrique
Feed and grazing management affect both the quantity and quality of animal manure and consequently nutrient cycling in the mixed crop-livestock systems in West Africa Sahel. Dietary measures can significantly influence the composition of manure and hence it’s agricultural value. High nutrient feed will generally result in higher nutrient content of the manure whereas a decline in feed quality will generally lead to increase in the indigestible fractions in the feeds.
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Library ResourceArticles et Livresdécembre, 2017Égypte, Asie, Afrique orientale, Afrique septentrionale
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Library ResourceArticles et Livresoctobre, 2018Soudan, Afrique
In the Gash Delta of Eastern Sudan, spate irrigation (flood-recession farming) contributes substantially to rural livelihoods by providing better yields than rainfed dryland farming. However, spate irrigation farmers are challenged by the unpredictability of flooding. In recent decades, the number of farmers practicing spate irrigation has decreased, due to varying rainfall intensity and frequency, insufficient infrastructure and farmers’ limited capacity to manage such variations.
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Library ResourceArticles et Livresdécembre, 2017Égypte
The Nile Delta of Egypt is known for its large irrigated area supplied with water diverted from the Nile River, with a limited use of groundwater, largely for domestic and industrial use. Official statistics for the whole delta indicate that there are a few thousand individual wells used for agriculture by a population of over 2 million farmers. This study, however, shows that a phenomenon of groundwater development for irrigation has been unfolding over the last few years, largely below the radar of managers and researchers.
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Library ResourceArticles et Livresdécembre, 2017Tunisie
Avoiding the negative effects of intensive groundwater resource use is challenging, especially when the interactions and causal pathways between biophysical and socioeconomic processes are complex, and when users, management, and regulatory bodies are spatially dispersed. The plain of Haouaria, in north-eastern Tunisia, has witnessed an important development of groundwater abstraction, fueled by the multiplication of wells tapping the underlying shallow and deep aquifers.
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Library ResourceArticles et Livresfévrier, 2017Tunisie, Afrique, Afrique septentrionale
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Library ResourceArticles et Livresdécembre, 2016Inde, Sri Lanka, Asie central, Afrique orientale, Afrique septentrionale, Asia du sud-est, Afrique australe, Afrique occidentale
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Library ResourceArticles et Livresdécembre, 2005Équateur, El Salvador, Ghana, Guatemala, Haïti, Honduras, Kenya, Madagascar, Malawi, Mexique, Nicaragua, Nigéria, Panama, Soudan, République-Unie de Tanzanie, Ouganda, Bénin, Cameroun, Colombie, Costa Rica, Cuba, République dominicaine, Afrique, Caraïbes, Amérique centrale, Amérique du Sud
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Library ResourceArticles et Livresdécembre, 2013Maroc, Sénégal, Ghana, Algérie, Burkina Faso, Égypte, Afrique
When discussing water and sanitation issues, technology is often seen as the key element by many stakeholders. Within a multinational project, the opportunity was taken to analyse the experiences with the existing water infrastructure to look behind this assumption and - if not working satisfactory - to identify the key requirements that obviously have not been met. Following this, it should be possible to prepare a set of requirements to learn from this.
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