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Propriétés des sols et dynamique des matières organiques
Paperback
Series: Omn.Univ.Europ.
Literary CriticismEnvironmental Studies
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ISBN10: 6131523193
ISBN13: 9786131523199
Publisher: Univ Europeenne
Published: Feb 28 2018
Pages: 76
Weight: 0.27
Height: 0.18 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786131523199
Publisher: Univ Europeenne
Published: Feb 28 2018
Pages: 76
Weight: 0.27
Height: 0.18 Width: 6.00 Depth: 9.00
Language: French
Les systèmes de production agricole des régions sub-sahariennes subissent depuis quelques décennies de nombreuses transformations sous la contrainte de changements socio-économiques (croissance de la population, exode rural, migrations, mondialisation des échanges) ou environnementaux (sécheresse persistante, changement climatique, dégradation des sols). Ces changements ont un impact sur les propriétés des sols et son fonctionnement. La gestion des ressources organiques de l'échelle de l'agrégat de sol à celle de l'agrosystème doit être pris en compte pour une amélioration durable de la production agricole. Dans ces sols où les ressources organique et minérale sont naturellement faibles, il est ainsi proposé l'hypothèse selon laquelle les pratiques agricoles doivent maintenir ou générer une organisation spatiale appropriée des propriétés édaphiques pour améliorer les services écosystèmiques rendus par les sols.
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