Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

Publications des scientifiques de l'IRD

Vigan A., Lasseur J., Benoit M., Mouillot Florent, Eugene M., Mansard L., Vigne M., Lecomte P., Dutilly C. (2017). Evaluating livestock mobility as a strategy for climate change mitigation : combining models to address the specificities of pastoral systems. Agriculture Ecosystems and Environment, 242, 89-101. ISSN 0167-8809

Accès réservé (Intranet IRD) Document en accès réservé (Intranet IRD)

Lien direct chez l'éditeur doi:10.1016/j.agee.2017.03.020

Titre
Evaluating livestock mobility as a strategy for climate change mitigation : combining models to address the specificities of pastoral systems
Année de publication2017
Type de documentArticle référencé dans le Web of Science WOS:000403033400010
AuteursVigan A., Lasseur J., Benoit M., Mouillot Florent, Eugene M., Mansard L., Vigne M., Lecomte P., Dutilly C.
SourceAgriculture Ecosystems and Environment, 2017, 242, p. 89-101. ISSN 0167-8809
RésuméPastoral farming systems have always adapted to the seasonal availability of forage resources and climate variability by moving animals. However, the role of animal mobility as a possible mitigating strategy in response to climate change has not been clearly documented. To understand this role, we investigated (i) the major methodological challenges linked to the diversity of grazing areas and other forage resources exploited by these systems and enteric emissions of methane; (ii) the impacts of grazing practices (carbon sequestration/emission) on soil and biomass carbon fluxes. We developed an approach based on two existing models (OSTRAL: Outil de Simulation du TRoupeau ovin ALlaitant and CASA: Carnegie Ames Stanford Approach) that we adapted and used in combination. This approach was applied to three French Mediterranean sheep and crop farming systems with different degrees of flock mobility (sedentary, single transhumance and double transhumance). The preliminary results produced by the whole farm model OSTRAL showed that two systems (sedentary and double transhumance) causing low carbon emissions. In the sedentary system, higher animal productivity offsets the increase in GHG emissions (in CO(2)eq) caused by feed production. In the pastoral system, grazing reduced total GHG emissions (in CO(2)eq). The CASA model proved to be useful to simulate the carbon balance under dynamic land cover in natural environments, whether used for grazing or not. This model can help assess the impact of grazing practices and carbon fluxes in systems linked to natural environments. The results of the first application showed that seasonal mobility of livestock increases the contribution of rangeland to feeding systems and improves the non-renewable energy balance of the system. It is thus extremely important to include the specificities of animals grazing in rangelands outside the structural limits of the farm when evaluating GHG emissions.
Plan de classementEtudes, transformation, conservation du milieu naturel [082] ; Sciences du milieu [021] ; Sciences fondamentales / Techniques d'analyse et de recherche [020]
LocalisationFonds IRD [F B010070186]
Identifiant IRDfdi:010070186
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010070186

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Nouméa

Papeete

Niamey

Ouagadougou

Tunis

La Paz

Quito