Evolution of Forest Fragmentation in the Municipality of Santa Maria de Jetiba - ES

ABSTRACT

By mapping the forest from 1970 to 1971 and in 2005, this study evaluated the levels of forest fragmentation in Santa Maria de Jetiba - State of Espirito Santo. To this end, aerial photographs were produced by aerophotography services as follows: Landsat satellite image with 15 m spatial resolution of 2002 in 1970/71 and SPOT satellite with 5 m in 2005. By using different classification techniques, the satellite images were classified and the products were subsequently assessed on field visits. The classification that best adapted to the reality of the municipality studied was considered in an attempt to achieve the best results. After the quantification of the forest areas in the municipality, from the 1970’s until today, it was possible to learn whether there was forest increase or deforestation over these 35 years.

Keywords:
temporal evolution; deforestation; fragmentation; geotechnology.