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Landscape Ecology

, Volume 31, Issue 2, pp 271–290 | Cite as

Policy impacts on regulating ecosystem services: looking at the implications of 60 years of landscape change on soil erosion prevention in a Mediterranean silvo-pastoral system

  • Carlos A. Guerra
  • Marc J. Metzger
  • Joachim Maes
  • Teresa Pinto-Correia
Research Article

Abstract

Context

Policy decisions form a major driver of land use change, with important implications for socially and environmentally susceptible regions. It is well known that there can be major unintended consequences, especially where policies are not tailored to regionally specific contexts.

Objectives

In this paper we assess the implications of 60 years of agricultural policies on soil erosion prevention (SEP) by vegetation, an essential regulating ecosystem service in Mediterranean Europe.

Methods

To assess these implications we produced and analysed a time series of land cover/use and environmental conditions datasets (from 1951 to 2012) in relation to changing agricultural policies for a specific region in the southern Portugal. A set of indicators related to SEP allowed us to identify that land use intensification as increased soil erosion in the last 60 years.

Results

Particularly in the last 35 years, as a consequence of headage payments for cattle, the agricultural policy had a significant effect in the density and renewal of the tree cover, resulting in drastic effects for the provision of the SEP service. These are more significant after 1986, coinciding with the implementation of several Common Agricultural Policy instruments focused on increasing the modernization and productivity capacity of farm systems.

Conclusions

The results show some unintended effects of agricultural policy mechanisms on ecosystem service provision and highlight the need for context-based policies, tailored to the environmental constrains and potentials of each region.

Keywords

Regulating services Agricultural policy Landscape change Land cover dynamics CAP Montado 

Notes

Acknowledgments

The contributions by MJM were funded by the European Union’s Seventh Program for Research, technological development and demonstration under Grant agreement No. FP7-ENV-2012-308393-2 (OPERAs).

Supplementary material

10980_2015_241_MOESM1_ESM.pdf (83 kb)
Supplementary material 1 (PDF 82 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Instituto de Ciências Agrárias e Ambientais MediterrânicasUniversidade de ÉvoraÉvoraPortugal
  2. 2.European Commission, Joint Research CentreIspraItaly
  3. 3.School of GeoSciencesThe University of EdinburghEdinburghUK

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