@article{fdi:010070186,
  title = {{E}valuating livestock mobility as a strategy for climate change mitigation : combining models to address the specificities of pastoral systems},
  author = {{V}igan, {A}. and {L}asseur, {J}. and {B}enoit, {M}. and {M}ouillot, {F}lorent and {E}ugene, {M}. and {M}ansard, {L}. and {V}igne, {M}. and {L}ecomte, {P}. and {D}utilly, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}astoral farming systems have always adapted to the seasonal availability of forage resources and climate variability by moving animals. {H}owever, the role of animal mobility as a possible mitigating strategy in response to climate change has not been clearly documented. {T}o 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. {W}e developed an approach based on two existing models ({OSTRAL}: {O}util de {S}imulation du {TR}oupeau ovin {AL}laitant and {CASA}: {C}arnegie {A}mes {S}tanford {A}pproach) that we adapted and used in combination. {T}his approach was applied to three {F}rench {M}editerranean sheep and crop farming systems with different degrees of flock mobility (sedentary, single transhumance and double transhumance). {T}he preliminary results produced by the whole farm model {OSTRAL} showed that two systems (sedentary and double transhumance) causing low carbon emissions. {I}n the sedentary system, higher animal productivity offsets the increase in {GHG} emissions (in {CO}(2)eq) caused by feed production. {I}n the pastoral system, grazing reduced total {GHG} emissions (in {CO}(2)eq). {T}he {CASA} model proved to be useful to simulate the carbon balance under dynamic land cover in natural environments, whether used for grazing or not. {T}his model can help assess the impact of grazing practices and carbon fluxes in systems linked to natural environments. {T}he 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. {I}t is thus extremely important to include the specificities of animals grazing in rangelands outside the structural limits of the farm when evaluating {GHG} emissions.},
  keywords = {{GHG} ; {G}razing practices ; {M}itigation ; {M}obility ; {P}astoral farming systems},
  booktitle = {},
  journal = {{A}griculture {E}cosystems and {E}nvironment},
  volume = {242},
  numero = {},
  pages = {89--101},
  ISSN = {0167-8809},
  year = {2017},
  DOI = {10.1016/j.agee.2017.03.020},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070186},
}