Chapter
Apr 26, 2012
An Infrastructure Fragmentation Index for Assessing Landscape Fragmentation Due to Transportation Infrastructure
Authors: C. Sangiorgi, Ph.D. [email protected], and F. IraliAuthor Affiliations
Publication: ICSDC 2011: Integrating Sustainability Practices in the Construction Industry
Abstract
Landscape fragmentation is the phenomenon of breaking up natural areas into smaller, more isolated units. The present work describes a methodology for evaluating the impact of both new and pre-existing transportation infrastructures by means of land cover maps. It enables quantifying the "pressure" on natural areas in terms of any further reduction in suitable habitat units based on the type of infrastructure and land cover elements. The proposed Infrastructural Fragmentation Index (IFI) assesses landscape fragmentation, taking into account both the number and connectivity of natural areas, which are rendered in clusters. The effects of defragmentation measures, such as wildlife crossings, are evaluated in terms of the consequent reduction in the pressure from the infrastructure. A case study has been analyzed in order to evaluate the fragmentation effects due to a new motorway in Lombardy (Italy), using CLC2000 and a GIS. Three scenarios have been studied: in the absence of the new infrastructure, and in its presence without and with the addition of wildlife crossings.
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© 2012 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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C.Eng.
Lect., DICAM - Department of Civil, Environmental and Materials Engineering, University of Bologna, V.le Risorgimento 2, 40136 Bologna, Italy.E-mail: [email protected]
F. Irali
Civil Engineer, Ph.D. Student, DICAM - Department of Civil, Environmental and Materials Engineering, University of Bologna, V.le Risorgimento 2, 40136 Bologna, Italy
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.