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La recherche visant à valoriser les milieux naturels se développe de manière dynamique depuis le début des années 1990. Plusieurs méthodes qui sont regroupées en deux catégories ont été élaborées: les méthodes d’évaluation directe et les méthodes d’évaluation indirecte. Dans la première catégorie (evaluation directe) se trouve la méthode d’expérimentation et la method d’évaluation contingente indirecte)...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.