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Cotton expansion and biodiversity loss in African savannahs, opportunities and challenges for conservation agriculture: A review paper based on two case studies

Baudron Frédéric, Corbeels Marc, Monicat François, Giller Ken E.. 2010. Cotton expansion and biodiversity loss in African savannahs, opportunities and challenges for conservation agriculture: A review paper based on two case studies In : Natural resource management and local development. Torquebiau Emmanuel (ed.), Taylor Russell (ed.). Heidelberg : Springer [Allemagne], 89-108. (Topics in biodiversity and conservation, 12) ISBN 978-94-007-0173-1

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Note générale : Reprinted from Biodiversity and Conservation, Volume 18:10 (2009)

Résumé : We review agricultural impacts on biodiversity and the potential of conservation agriculture in developing productive and environment-friendly cropping systems. We then analyse experiences from two African landscapes of global importance for conservation: the Mid Zambezi Valley in Southern Africa and the periphery of the ''W-Arly- Penjari'' complex in West Africa. In both areas, expansion of cotton farming, considered as one of the most polluting forms of agriculture in the world, drives major land use change and loss of biodiversity. In both areas, various forms of conservation agriculture have been developed and tested. We highlight the potential benefit of conservation agriculture in controlling negative environmental effects traditionally associated with agriculture and reducing the need for land conversion through increased biophysical resource use efficiency, turning agriculture from a threat to an opportunity for conservation. Finally, we raise a number of issues that constitute challenges for the widespread adoption of these technologies by resource-poor farmers, and formulate recommendations for the development, evaluation and diffusion of conservation agriculture technologies for smallholders in semi-arid Africa. (Résumé d'auteur)

Mots-clés Agrovoc : Gossypium, Agriculture alternative, Biodiversité, Petite exploitation agricole, Productivité des terres, Gestion des ressources, Durabilité, Impact sur l'environnement, Système de culture

Mots-clés géographiques Agrovoc : Zambie, Zimbabwe, Mozambique, Burkina Faso, Niger, Bénin

Mots-clés complémentaires : Agriculture de conservation

Classification Agris : F08 - Systèmes et modes de culture
E14 - Economie et politique du développement
P01 - Conservation de la nature et ressources foncières

Axe stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

  • Baudron Frédéric, CIRAD-PERSYST-UMR SYSTEM (ZWE)
  • Corbeels Marc, CIRAD-PERSYST-UMR SYSTEM (ZWE)
  • Monicat François, CIRAD-ES-UPR AGIRs (FRA)
  • Giller Ken E., Wageningen Agricultural University (NLD)

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