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Application of a simulation model for assessing integration of smallholder shifting cultivation and sheep production in Yucatán, Mexico

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Author Info

  • Parsons, David
  • Nicholson, Charles F.
  • Blake, Robert W.
  • Ketterings, Quirine M.
  • Ramírez-Aviles, Luis
  • Cherney, Jerome H.
  • Fox, Danny G.
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    Abstract

    Simulation models are effective tools to examine interactions between livestock, cropping systems, households, and natural resources. Our study objective was to use an integrated livestock and crop model to assess the outcomes from selected suites of management decisions observed in smallholder sheep-cropping systems of Yucatán, Mexico. The scenarios contrasted specialized systems versus mixed farming, and evaluated the outcomes of increased crop-livestock integration. Mixed enterprise scenarios involving sheep provided more income than specialized enterprises, and capitalized on a lower price of on-farm maize grain, efficient utilization of surplus labor, and availability of common land. Labor and management income was greatest for the unintegrated and partially integrated crop and livestock scenarios. It was more profitable for producers to sell excess grain and maize stover, and use common land to feed the livestock, suggesting that increased integration does not always result in improved outcomes. The results are consistent with a system not yet pushed to the point where integration is inevitable. For all sets of scenarios, the model structure was able to accommodate subtle management differences to produce appropriate biophysical, labor, and economic outcomes. We conclude there is potential to use similar model development methods to describe other crop-livestock systems, thus providing tools for learning, scenario analysis, and impact assessment.

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    Bibliographic Info

    Article provided by Elsevier in its journal Agricultural Systems.

    Volume (Year): 104 (2011)
    Issue (Month): 1 (January)
    Pages: 13-19

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    Handle: RePEc:eee:agisys:v:104:y:2011:i:1:p:13-19

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    Web page: http://www.elsevier.com/locate/agsy

    Related research

    Keywords: Crop-livestock interactions Crop-livestock systems Milpa Sheep Shifting cultivation System dynamics;

    References

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    1. John Morton, 2001. "The electronic dissemination of policy information; experiences from the livestock-environment toolbox," Journal of International Development, John Wiley & Sons, Ltd., vol. 13(7), pages 877-891.
    2. Thornton, P. K. & Herrero, M., 2001. "Integrated crop-livestock simulation models for scenario analysis and impact assessment," Agricultural Systems, Elsevier, vol. 70(2-3), pages 581-602.
    3. Waithaka, M.M. & Thornton, P.K. & Herrero, M. & Shepherd, K.D., 2006. "Bio-economic evaluation of farmers' perceptions of viable farms in western Kenya," Agricultural Systems, Elsevier, vol. 90(1-3), pages 243-271, October.
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    Cited by:
    1. Pacín, Fernando & Oesterheld, Martín, 2014. "In-farm diversity stabilizes return on capital in Argentine agro-ecosystems," Agricultural Systems, Elsevier, vol. 124(C), pages 51-59.

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