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A MULTIDISCIPLINARY MODEL FOR ASSESSING DEGRADATION IN MEDITERRANEAN RANGELANDS

Authors

  • J. Ibañez,

    Corresponding author
    1. Statistics and Managerial Methods in Agriculture, Polytechnic University of Madrid, Madrid, Spain
    • Correspondence to: J. Ibañez, Statistics and Managerial Methods in Agriculture, Polytechnic University of Madrid, Madrid, Spain.

      E-mail: javier.ibanez@upm.es

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  • J. M. Valderrama,

    1. Estación Experimental de Zonas Áridas–Agencia Estatal Consejo Superior de Investigaciones Científicas (EEZA-CSIC), Almería, Spain
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  • V. Papanastasis,

    1. Faculty of Forestry and Natural Environment, Laboratory of Rangeland Ecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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  • C. Evangelou,

    1. Faculty of Forestry and Natural Environment, Laboratory of Rangeland Ecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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  • J. Puigdefabregas

    1. Estación Experimental de Zonas Áridas–Agencia Estatal Consejo Superior de Investigaciones Científicas (EEZA-CSIC), Almería, Spain
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    • Correction added on 5 July 2013, after first online publication: Spelling of the surname of the last author was corrected to ‘Puigdefábregas’.


ABSTRACT

This paper presents an annual multidisciplinary, non-spatial model which formalizes the relationships linking the dynamics of shrubs, herbs, soil, livestock and farmers' behaviour with possible exogenous drivers of degradation, such as weather and prices. The model does not represent a pasture–livestock system but a shrub–soil one and is applied to a rangeland in Lagadas County (Northern Greece). A sensitivity analysis of the model is also presented. It shows that livestock, in general, and factors increasing farmers' profits, in particular, are currently helping to combat shrub invasion in Lagadas while having low impacts on erosion rates. Copyright © 2012 John Wiley & Sons, Ltd.

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