Séries Chronologiques de l'Utilisation et de l'Occupation des Terres en l'Afrique de l'Ouest Initié en 1999, le projet « Dynamique de l'Utilisation des Terres en Afrique de l'Ouest » vise à cartographier l'utilisation et l'occupation des terres, analyser les changements d'occupation des terres dans le temps et dans l'espace, et comprendre les conséquences de ces changements sur l'environnement de toute l'Afrique de l'Ouest. Appuyé par l'U.S. Agency for International Development/West Africa (USAID/West Africa), ce projet est le fruit d'une coopération entre le Centre Régional AGRHYMET basé à Niamey au Niger, leurs partenaires au sein des 17 pays participants, l'Institut du Sahel (INSAH) et l'U.S. Geological Survey (USGS) (Comité permanent Inter-états de Lutte contre la Sécheresse dans le Sahel [CILSS], 2016). L'objectif principal des produits de ce projet-les « Séries Chronologiques de l'Utilisation et de l'Occupation des Terres en l'Afrique de l'Ouest » (Tappan et al., 2016)-est de sensibiliser et d'informer les décideurs nationaux et régionaux sur les changements qui s'opèrent au sein des paysages de la région ouest-africaine. La totalité des données, des produits et des analyses générés par le projet sont disponibles et téléchargeables gratuitement sur le site http://eros.usgs.gov/westafrica.
For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov/.
For an overview of USGS information products, including maps, imagery, and publications, visit http://store.usgs.gov. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.
In the 1970s and 1980s, the Sahel experienced recurrent drought and famine. Farmers and their development partners reacted to this crisis by developing climate-smart agricultural practices and changes in land use, including water-harvesting techniques to restore degraded land to productivity. In several densely populated parts of the Sahel, farmers began to protect and manage woody species that regenerated naturally on their farmland. Farmer-managed natural regeneration (FMNR) is a foundational practice that produces multiple benefits, such as maintaining or improving soil fertility, which raises crop yields, and increasing the production of tree-based fodder, fruit, and firewood. In Niger’s Maradi and Zinder Regions alone, farmers have applied FMNR practices on 4.2 million hectares. The findings presented in this chapter suggest that the future of agriculture in the Sahel will be largely determined by whether low-income smallholder farmers will manage to improve soil fertility, which will depend on maintaining substantial densities of on-farm trees thus increasing tree cover.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.