Simulation modeling of management scenarios of livestock manure in urban and periurban zones of Mahajanga, Madagascar

Ramahefarison Heriniaina, Guerrin François, Paillat Jean-Marie. 2013. Simulation modeling of management scenarios of livestock manure in urban and periurban zones of Mahajanga, Madagascar. In : 15 ème Conférence internationale RAMIRAN: Recyclage des résidus organiques pour l'agriculture: de la gestion des déchets aux services écosystémiques, Versailles, France, 3 au 5 juin 2013. INRA. s.l. : INRA, 4 p. International Ramiran Conference. 15, Versaille, France, 3 Juin 2013/5 Juin 2013.

Résumé : This paper describes the use of a dynamical simulation model, called Magma, to evaluate the management scenarios of livestock manure in urban and periurban zones of Mahajanga, Madagascar. Three scenarios were tested: Scenario 1, corresponding to the current crop fertilization practices; Scenario 2, trying to maximize the use of livestock wastes on crops; and Scenario 3, testing the relocation of in-town animal farms to a rural area. By simulation, it has been showed that to manage more efficiently manures a better organization of transportation means is required. This may lead to avoid the lack of organic matter during the high season of market gardening. Environmental risk related to non-collected manures and to excess organic and chemical fertilizer application should be thoroughly considered.

Classification Agris : Q70 - Traitement des déchets agricoles
F04 - Fertilisation
L01 - Élevage - Considérations générales
P02 - Pollution
U10 - Informatique, mathématiques et statistiques

Auteurs et affiliations

• Ramahefarison Heriniaina
• Guerrin François, CIRAD-PERSYST-UPR Recyclage et risque (REU)
• Paillat Jean-Marie, CIRAD-PERSYST-UPR Recyclage et risque (REU) ORCID: 0000-0001-6353-6265

Source : Cirad - Agritrop (https://agritrop.cirad.fr/570571/)

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