Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
A model for assessing habitat fragmentation caused by new infrastructures in extensive territories. Evaluation of the impact of the Spanish infrastructure and Transport Plan.
Año:2010
Áreas de investigación
  • Transporte terrestre
Datos
Descripción
The aim of the present work is to design a model for evaluating the impact of planned infrastructures on species survival at the territorial scale by calculating a connectivity index. The method developed involves determining the effective distance of displacement between patches of the same habitat, simplifying earlier models so that there is no dependence on specific variables for each species. A case study is presented in which the model was used to assess the impact of the forthcoming roads and railways included in the Spanish Strategic Infrastructure and Transport Plan (PEIT, in its Spanish initials). This study took into account the habitats of peninsular Spain, which occupies an area of some 500,000 km2. In this territory, the areas deemed to provide natural habitats are defined by Directive 92/43/EEC. The impact of new infrastructures on connectivity was assessed by comparing two scenarios, with and without the plan, for the major new road and railway networks. The calculation of the connectivity index (CI) requires the use of a raster methodology based on the Arc/Info geographical information system (GIS). The actual calculation was performed using a program written in Arc/Info Macro Language (AML); this program is available in FragtULs (Mancebo Quintana, 2007), a set of tools for calculating indicators of fragmentation caused by transport infrastructure (http://topografia.montes.upm.es/fragtuls.html). The indicator of connectivity proposed allows the estimation of the connectivity between all the patches of a territory, with no artificial (non-ecologically based) boundaries imposed. The model proposed appears to be a useful tool for the analysis of fragmentation caused by plans for large territories.
Internacional
Si
JCR del ISI
Si
Título de la revista
JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN
0301-4797
Factor de impacto JCR
2,367
Información de impacto
Volumen
91
DOI
10.1016/j.jenvman.2009.12.013
Número de revista
5
Desde la página
1087
Hasta la página
1096
Mes
MAYO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Belen Martin Ramos (UPM)
  • 1º Autor: Santiago Mancebo Quintana
  • Autor: M. Isabel Otero Pastor (UPM)
  • Autor: Miguel Ángel Casermeiro
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Planificación del Transporte
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