Portal de Periódicos da CAPES

Modelação geográfica de métricas de paisagem: efeito de escala e efeito de contexto

2008; Coimbra University Press; Issue: 26-27 Linguagem: Inglês

10.14195/0871-1623_27_21

2183-4016

Lénia Duarte, Nuno Neves,

Geographic Information Systems Studies

Conservation units are protected spaces that are under constant pressure from the surrounding environment, mostly in urban areas.The "Tinguá" Biological Reserve (REBIO Tinguá) has a largest portion, located in the Metropolitan Region of Rio de Janeiro.It is composed of large forest fragments that together with other conservation units form the Central-Fluminense Atlantic Forest Mosaic and the Corridor of Biodiversity of "Serra do Mar"(sea mountain range).The objective of this study is to analyze vulnerable areas due to anthropic pressures through the use of geotechnologies and records of infringements within the Tinguá Biological Reserve and its Damping Zone.The methodology uses as input data RapidEye images and georeferenced infringements files registered by the REBIO Tinguá team.The applied methods were divided in the mapping of land cover that made it possible to obtain the spatial templates of the forest fragments and; in the construction of a density map of assessments of environmental infringements by means of kernel-based spatial statistics.The junction between the mappings of the forest fragments and the density of assessments made it possible to construct the map of vulnerability to the anthropic pressures of the limits of the REBIO Tinguá and its Zone of Damping.The results of the mapping were validated and indicated percentages of 63% and 23% for the medium and high vulnerability for the occurrence of new infringement notices.