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Ecological risk and accessibility analysis to assess the impact of roads under Habitats Directive

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  • Tommaso Sitzia
  • Thomas Campagnaro
  • Stefano Grigolato

Abstract

We propose a method for the appropriate assessment of adverse effects of roads in compliance with the European Union Habitats Directive. The method incorporates an analysis of ecological risk of edge effects by the proposed roads with the related increase in accessibility. The method was tested on 30 km of planned forest roads inside an 8,000-ha reserve included in two Natura 2000 sites. As a result, the cumulative effect of 19 road segments was judged as not significantly affecting the integrity of the sites, although they made accessible an extra 314 ha. On the basis of the accessibility calculation, 20 ha of land were set aside from forest exploitation as a mandatory mitigation measure. The method objectively determined the cumulative adverse effects, enabled comparison of plan revisions and alternatives and proved to measure direct and indirect significant effects with a realistic effort in terms of field survey and geographic information system processing.

Suggested Citation

  • Tommaso Sitzia & Thomas Campagnaro & Stefano Grigolato, 2016. "Ecological risk and accessibility analysis to assess the impact of roads under Habitats Directive," Journal of Environmental Planning and Management, Taylor & Francis Journals, vol. 59(12), pages 2251-2271, December.
    • Handle: RePEc:taf:jenpmg:v:59:y:2016:i:12:p:2251-2271
    DOI: 10.1080/09640568.2016.1140023
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    Cited by:

    1. Jaeyong Choi & Sanghyuk Lee & Seung Yong Ji & Jong-Chul Jeong & Peter Sang-Hoon Lee, 2016. "Landscape Analysis to Assess the Impact of Development Projects on Forests," Sustainability, MDPI, vol. 8(10), pages 1-13, October.
    2. Thomas Campagnaro & Giovanni Trentanovi & Tommaso Sitzia, 2018. "Identifying Habitat Type Conservation Priorities under the Habitats Directive: Application to Two Italian Biogeographical Regions," Sustainability, MDPI, vol. 10(4), pages 1-20, April.

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