Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 87.
  1. Library Resource
    rapport_pastoralisme
    Rapports et recherches
    août, 2018
    Burkina Faso, Guinée, Mali, Mauritanie, Niger, Nigéria

    Why this study?
    Recent years have witnessed an increase in violent conflicts involving pastoralists in parts of West Africa and the Sahel. They often take the form of clashes between herders and farmers, impacting human, national and regional security.
    Given its mandate and role in conflict prevention, the United Nations Office for West Africa and the Sahel, in collaboration with the Economic Community of West African States, initiated this study in 2017 to examine the causes and identify concrete solutions to conflicts related to pastoralism.

  2. Library Resource
    Rapports et recherches
    décembre, 2020
    Burkina Faso, Afrique occidentale

    Since the mid-1980s, the positive impacts of these simple, cost-efficient water harvesting techniques become clear, following their increasingly widespread adoption. Their use has allowed smallholders to reverse land degradation, improve soil fertility, sustainably increase crop production, achieve food security, and create more productive, diverse and resilient farming systems. At the same time, groundwater is recharged, improving access to drinking water for the entire year, and creating opportunities for irrigated vegetable gardening around wells.

  3. Library Resource
    Articles et Livres
    décembre, 2020
    Algérie, Soudan, Érythrée, Éthiopie, Soudan du Sud, Cameroun, République centrafricaine, Tchad, Burkina Faso, Mali, Mauritanie, Niger, Nigéria, Sénégal

    Drylands occupy more than 40% of the world’s land area and are home to some two billion people. This includes a disproportionate number of the world’s poorest people, who live in degraded and severely degraded landscapes. The United Nations Convention to Combat Desertification states on its website that 12 million hectares are lost annually to desertification and drought, and that more than 1.5 billion people are directly dependent on land that is being degraded, leading to US$42 billion in lost earnings each year.

  4. Library Resource
    Articles et Livres
    décembre, 2016
    Argentine, Burkina Faso, République centrafricaine, Chine, Cameroun, Algérie, Érythrée, Éthiopie, Mali, Mauritanie, Niger, Nigéria, Soudan, Sénégal, Soudan du Sud, Tchad, Asie central

    It took scientists more than three decades to transform a perceived desertification crisis in the Sahel into a non-event. Looking beyond the Sahel, the chapters in this book provide case studies from around the world that examine the use and relevance of the desertification concept.

  5. Library Resource
    Articles et Livres
    décembre, 2003
    Burkina Faso, République centrafricaine, Cameroun, Algérie, Érythrée, Éthiopie, Mali, Mauritanie, Niger, Nigéria, Soudan, Sénégal, Soudan du Sud, Tchad

    Library has French version: TIC au secours des éleveurs du Sahel

  6. Library Resource
    Rapports et recherches
    décembre, 2020
    Sahara occidental, Burkina Faso

    Dans le contexte sahélien, depuis la fin des années 2010 des discours normatifs sur la jeunesse et le pastoralisme se sont développés, trop souvent basés sur des catégories standards impropres à décrire les réalités locales et associées dans une chaine de causalité trompeuse: désœuvrement des jeunes, migrations, participation aux violences armées, conflits violents catégorisés de manière simpliste comme ethniques et socioprofessionnels, économie criminelle, dégradation des ressources, changement climatique.Il y a un paradoxe entre le développement de ces discours généraux et le manque de do

  7. Library Resource

    Volume 9 Issue 5

    Publication évaluée par des pairs
    mai, 2020
    Algérie, Soudan, Érythrée, Éthiopie, Soudan du Sud, Cameroun, République centrafricaine, Tchad, Burkina Faso, Mali, Mauritanie, Niger, Nigéria, Sénégal

    Desertification is defined as land degradation occurring in the global drylands. It is one of the global problems targeted under the Sustainable Development Goals (SDG 15). The aim of this article is to review the history of desertification and to evaluate the scientific evidence for desertification spread and severity. First quantitative estimates of the global extent and severity of desertification were dramatic and resulted in the establishment of the UN Convention to Combat Desertification (UNCCD) in 1994. UNCCD’s task is to mitigate the negative impacts of desertification in drylands.

  8. Library Resource
    Articles et Livres
    décembre, 2018
    Algérie, 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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