Système de support à la décision pour une gestion concertée de l'eau - Une approche intégrée du comportement social et des risques aux Iles Loyauté Nouvelle-Calédonie)

A prototype of decision-support system for the environmental management and development, base on the ADAGE concept, was developed. It was applied in 1999/2000 in New Caledonia for the sustainable management of water resource of the upraised atoll of Lifou island (1,196 km2, 10 000 inhabitants). This system is providing an interface among stakeholders from scientific, political and societal domains. Each of these domains favours their indicators, their concepts, their culture and their behaviour, source of conflicts and misunderstanding. Integrating social and cultural data constitute the principal novelty of this decision support system. It could be used to address a large variety of environmental issues. When completely developed, the system will be capable of using and simulating several forms of spatially located knowledge related to behaviour, people’s perception and decision indicators, thanks to GIS and database technologies. MOTS-CLÉS : système support à la décision, SIG, gestion de l’eau, approche intégrée, gestion e l’environnement, risques anthropiques, lentille d’eau douce. d