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Desertification due to overgrazing in a dynamic commercial livestock–grass–soil system

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  • Ibáñez, Javier
  • Martínez, Jaime
  • Schnabel, Susanne

Abstract

In this article, a dynamic simulation model is presented, designed to add to the understanding of commercial livestock–grass–soil systems and, especially, the processes of desertification due to overgrazing. The model has two key innovative features: (i) the joint dynamic treatment of the three mentioned stock variables and (ii) the consideration of livestock dynamics determined by economic variables. The main possible behaviours of the resulting three-dimensional system are presented and it is shown that there are significant differences with respect to the subsystem constrained to livestock and grasses as considered in the literature to date. After analysing the model qualitatively, we are able to propose some early warning indicators of the risk of long-term desertification due to overgrazing. In this article, we illustrate the use of those indicators in three hypothetical, yet likely extensive livestock farming scenarios in Spain.

Suggested Citation

  • Ibáñez, Javier & Martínez, Jaime & Schnabel, Susanne, 2007. "Desertification due to overgrazing in a dynamic commercial livestock–grass–soil system," Ecological Modelling, Elsevier, vol. 205(3), pages 277-288.
    • Handle: RePEc:eee:ecomod:v:205:y:2007:i:3:p:277-288
    DOI: 10.1016/j.ecolmodel.2007.02.024
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    References listed on IDEAS

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    1. Beukes, P. C. & Cowling, R. M. & Higgins, S. I., 2002. "An ecological economic simulation model of a non-selective grazing system in the Nama Karoo, South Africa," Ecological Economics, Elsevier, vol. 42(1-2), pages 221-242, August.
    2. Gutierrez, Andrew Paul & Regev, Uri, 2005. "The bioeconomics of tritrophic systems: applications to invasive species," Ecological Economics, Elsevier, vol. 52(3), pages 383-396, February.
    3. Regev, U. & Gutierrez, A. P. & Schreiber, S. J. & Zilberman, D., 1998. "Biological and economic foundations of renewable resource exploitation," Ecological Economics, Elsevier, vol. 26(3), pages 227-242, September.
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    Cited by:

    1. Salvati, Luca & Carlucci, Margherita, 2015. "Towards sustainability in agro-forest systems? Grazing intensity, soil degradation and the socioeconomic profile of rural communities in Italy," Ecological Economics, Elsevier, vol. 112(C), pages 1-13.
    2. Jaime Martínez-Valderrama & Gabriel del Barrio & María E. Sanjuán & Emilio Guirado & Fernando T. Maestre, 2022. "Desertification in Spain: A Sound Diagnosis without Solutions and New Scenarios," Land, MDPI, vol. 11(2), pages 1-13, February.
    3. Ibáñez, Javier & Valderrama, Jaime Martínez & Puigdefábregas, Juan, 2008. "Assessing desertification risk using system stability condition analysis," Ecological Modelling, Elsevier, vol. 213(2), pages 180-190.
    4. Marcela Prokopová & Luca Salvati & Gianluca Egidi & Ondřej Cudlín & Renata Včeláková & Radek Plch & Pavel Cudlín, 2019. "Envisioning Present and Future Land-Use Change under Varying Ecological Regimes and Their Influence on Landscape Stability," Sustainability, MDPI, vol. 11(17), pages 1-24, August.
    5. Jaime Martínez-Valderrama & Javier Ibáñez Puerta, 2023. "System Dynamics Tools to Study Mediterranean Rangeland’s Sustainability," Land, MDPI, vol. 12(1), pages 1-25, January.
    6. Jakoby, Oliver & Grimm, Volker & Frank, Karin, 2014. "Pattern-oriented parameterization of general models for ecological application: Towards realistic evaluations of management approaches," Ecological Modelling, Elsevier, vol. 275(C), pages 78-88.

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