Modélisation géomatique rétrospective des paysages par évaluation multicritères et multiobjectifs

• Main Authors: María Teresa Camacho Olmedo, Martin Paegelow, Pilar García Martínez
• Format: Article
• Language: deu
• Published: Unité Mixte de Recherche 8504 Géographie-cités 2007-03-01
• Series: Cybergeo
• Subjects: GIS; historic landscape; modelling; multi-objective evaluation; nulti-criteria evaluation
• Online Access: http://journals.openedition.org/cybergeo/4811

Geographic information systems includes among the variety of analytical fonctions those intended to spatial-temporal modelling and decision support, particullary multi-criteria evaluation and multi-objective evaluation. These tools are particularly useful for simulation scenarios because of reproducibility of results and the possibility to define the amount of trade off and risk in the decision process. This paper focuses on methodology and results obtained for retrospective land cover modelling in the Alpujarra Alta Granadina (Andalusia, Spain), related to a knowledge database about land cover dynamics up from the XVI century to XX century. Multi-criteria evaluation produces a lot of land use potencial maps, also called suitability maps, one for every objective (land use category). It is based on a chronological set of land use maps, and criteria which are considered responsible for the observed changes and aptitude to receive an agricole use. After that, the multi-objective evaluation resolves the incompatibilities between the potentials uses for the chronological set (1572, 1752, 1855/61), and rebuilt probabilistic historical maps based in the statisticals surfaces. The results show the probable location for a specific use and allow to test the methodology and to specify some contributions and limits without for it permitting a validation for lack of historic comparable documents.