With current rates of land degradation reaching ten to twelve million ha per year, there is an urgent need to scale up and out successful, profitable and resource-efficient sustainable land management practices to maintain the health and resilience of the land that humans depend on. As much as 500 million out of two billion ha of degraded land, mainly in developing countries, have restoration potential, offering an immediate target for restoration and rehabilitation initiatives.1 In the past, piecemeal approaches to achieving sustainable land management have had limited impact.
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Library ResourceRapports et recherchesdécembre, 2017Inde, Népal, Maroc, Afrique du Sud
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Library ResourceManuels et directivesRapports et recherchesjanvier, 2009Afrique
Avant-propos La notion de désertification se définit comme une dégradation des sols en zone aride, semi-aride et subhumide sèche, souvent appelée simplement « zone aride ». On estime qu’elle résulte d’une combinaison de facteurs, parmi lesquels les changements climatiques et l’activité humaine. Plus d’un tiers de la superficie totale de la terre est considéré comme zone aride. En termes démographiques, c’est un cinquième de la population totale du globe qui vit en zone aride déjà dégradée ou menacée de désertification.
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Library ResourceRapports et recherchesjanvier, 2009Afrique
Desertification is defined as land degradation in arid, semi-arid and dry sub-humid areas, resulting from various factors, including climatic variations and human activities. More than one third of the surface of the earth consists of drylands. In terms of population, one out of every five people of the world live in already degraded or desertification-prone drylands. These people include many of the world’s poorest, most marginalized, and politically weak citizens. For instance, nearly 325 million people in the African continent live in drylands.
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Library ResourceManuels et directivesjanvier, 2012Afrique, Asie
The Africa–Asia Drought Risk Management Peer Assistance Project seeks to facilitate the sharing of knowledge and technical cooperation among drought-prone countries in Africa and Asia and thus to promote best practices in drought risk management (DRM) for development in the two regions. In order to establish a baseline to guide this activity, the United Nations Development Programme Drylands Development Centre (UNDP DDC) undertook a stocktaking exercise between March and June 2011 on drought impacts, causes, trends and solutions in Africa and Asia.
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