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A methodological approach to potential vegetation modeling using GIS techniques and phytosociological expert-knowledge: application to mainland Portugal IPB - Escola Superior Agrária
Capelo, J.; Mesquita, Sandra; Costa, José C.; Ribeiro, Silvia; Arsénio, Pedro; Neto, Carlos; Monteiro-Henriques, T.; Aguiar, Carlos; Honrado, João; Espírito-Santo, Dalila; Lousã, Mário.
An attempt to obtain a consistent spatial model of natural potential vegetation (NPV) for the mainland Portuguese territory is reported. Spatial modeling procedures performed in a Geographic Information System (GIS) environment, aimed to operationalize phytosociological expert-knowledge about the putative distribution of potential zona1 forest communities dominant in the Portuguese continental territories. The paradigm for NPV assumed was that of RIVAS-MARTINEZ (1976) and RIVAS-MARTINEZ et al. (1999), which presupposes, for a given territory, a univocal correspondence between a uniform combination of bioclimatic stage and lithology given a biogeographical context, and a unique successional sequence leading to a single climax community (i. e. a vegetation...
Tipo: Article Palavras-chave: Vegetation; Natural Potential Vegetation; Portugal; GIS.
Ano: 2007 URL: http://hdl.handle.net/10198/5379
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The application of the habitats directive in Portugal IPB - Escola Superior Agrária
Costa, José C.; Monteiro-Henriques, T.; Neto, Carlos; Arsénio, Pedro; Aguiar, Carlos.
A succinct review of the application of the Habitats Directive in Portugal is presented. Since 1971 until 2000 Portugal has defined approximately 8,8% of its territory as national protected areas. With the application of the Habitats Directive nature conservation policies extended to more than 17,4 % of the territory increasing by 98% and the knowledge on vegetation community’s habitats was certainly deepened. Including special protection areas (Birds Directive) the Portuguese territory under one or more conservation status totals 21,5%. Finally, the support given by the Portuguese Phytosociology Association – ALFA in the detailed description of the Directive habitats is divulged, showing the importance, usefulness and efficacy of phytosociologic studies....
Tipo: Article Palavras-chave: Habitats Directive; Portugal.
Ano: 2007 URL: http://hdl.handle.net/10198/5393
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