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.
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Showing items 1 through 9 of 4.-
Library ResourceArticles et Livresdécembre, 2020Algérie, Soudan, Érythrée, Éthiopie, Soudan du Sud, Cameroun, République centrafricaine, Tchad, Burkina Faso, Mali, Mauritanie, Niger, Nigéria, Sénégal
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Library ResourceArticles et Livresdécembre, 2016Algérie, Maroc, Tunisie
States of ecological maturity and temporal trends of drylands in Morocco, Algeria and Tunisia north of 28 N are reported for 1998–2008. The input data were Normalized Difference Vegetation Index databases and corresponding climate fields, at a spatial resolution of 1 km and a temporal resolution of one month. States convey opposing dynamics of human exploitation and ecological succession. They were identified synchronically for the full period by comparing each location to all other locations in the study area under equivalent aridity.
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Library ResourceArticles et Livresdécembre, 2019Soudan, Afrique orientale, Burundi, Éthiopie, Kenya, Rwanda, République-Unie de Tanzanie, Ouganda
Land Degradation Neutrality is a new way of approaching land degradation that acknowledges that land and land-based ecosystems are affected by global environmental change as well as by local land use practices. Achieving the target of a land degradation neutral world encourages adaptive management during planning, implementation, and monitoring of LDN-related activities and follows the LDN response hierarchy of avoiding, reducing, and reversing land degradation.
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Library ResourceArticles et Livresdécembre, 2018Égypte, Soudan, Kenya, République-Unie de Tanzanie, Afrique australe, Afrique du Sud, Nigéria, Mexique, Brésil, Colombie, Équateur, Pérou, États-Unis d'Amérique, Japon, Philippines, Iran, Népal
Agriculture influences and shapes the world’s ecosystems, but not always in a positive way. More than 2.5 billion people are globally involved as stewards of land and water ecosystems that constitute the natural resource base for feeding the current and future world population. Yet, conventional agronomic interventions based on ‘hard’ agricultural engineering compromise various eco-services that are required for sustainable agricultural development.
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