Résumé
During the last decades, a range of protected and restricted areas has been set up in the Low Oyapock (French Guyana, Amapá State). During the same time, settlement policies and the opening up of the area have created a strong attraction, which led to the opening of roads, the building of a transborder bridge, a soaring demography and an important migratory flow. Some of these country-planning policies affect the practices of the local population in the way they manage and occupy their territory, which then affect landscaping. Thus, openings made in the forest can be held as good indicators on anthropological practices. The impact of these practices can be detected at far distance with different remote sensing tools (such as aerial photos, satellites pictures) and through the analysis of fragmentation of the forest, which allows estimating the efficiency of public policy action. This work presents the first low costs methodological orientations, which set links between the process of forest zoning, the different forms of anthropological practices and the public policy in the Low Oyapock. The study of the forest fragmentation could thus take part in the evaluation of public policies on country planning and of environment management.