Centre de documentation
scientifique

A comparison of fuzzy AHP and ideal point methods for evaluating land suitability / M. Elaalem in Transactions in GIS, vol 15 n° 3 (July 2011)  

Public [article]  inTransactions in GIS > vol 15 n° 3 (July 2011) . - pp 329 - 346 Titre : A comparison of fuzzy AHP and ideal point methods for evaluating land suitability Type de document : Article/Communication Auteurs : M. Elaalem, Auteur ; Peter F. Fisher, Auteur ; A. Comber, Auteur Année de publication : 2011 Article en page(s) : pp 329 - 346 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] analyse comparative [Termes IGN] classification automatique [Termes IGN] cultures irriguées [Termes IGN] outil d'aide à la décision [Termes IGN] pertinence [Termes IGN] processus de hiérarchisation analytique Résumé : (Auteur) This article compares two fuzzy approaches to land suitability evaluations, Analytical Hierarchy Process (AHP) and Ideal Point. The methods were evaluated using a case study which models the opportunities for wheat production under irrigation conditions in the north-western region of Jeffara Plain, Libya. A number of relevant soil and landscape criteria were identified through a review of the literature and their weights specified as a result of discussions with local experts. The results of the Fuzzy AHP showed that the majority of the study area has membership values to the set of suitability between 0.40 and 0.50, while the results of the Ideal Point approach revealed most of the study area to have membership values between 0.30 and 0.40. While the Fuzzy AHP and Ideal Point approaches accommodate the continuous nature of many soil properties and produce more intuitive distributions of land suitabilities values, the Fuzzy AHP approach was found to be better than Fuzzy Ideal Point. This was due to the latter's tendency to be biased towards positive and negative ideal values. Numéro de notice : A2011-226 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/j.1467-9671.2011.01260.x Date de publication en ligne : 06/06/2011 En ligne : https://doi.org/10.1111/j.1467-9671.2011.01260.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31004 [article]