Uso de fotografias aéreas não convencionais e SIG na elaboração de mapas de risco de incêndios florestais


This study aims to identify areas susceptible to forest fires in the Station for Research, Training and Environmental Education Mata do Paraíso and its surroundings. The station is located north of the Zona da Mata Mineira, which is inserted in the domain of the Atlantic Forest, MG, Brazil. The work was based on the use of Geographic Information System (GIS) and aerial photos unconventional. The total area studied was 895.86 ha. Of this total, 584.07 ha is occupied by agriculture and pasture. This last class, were 548.40 ha of pasture, composing 61.21% of the total area. This category is represented by a fuel material of small size and therefore high power ignition, highlighting the vulnerability of the area to fire. Among the 6.32 kilometers of fuel break, had 4.72 kilometers of forest regeneration from the outside and 1.60 km of pasture, alternating between one and another type of land use along its length. Approximately 20% of the fuel break that borders the pasture has slopes greater than 30 degrees; 61% slope between 16 and 30 degrees and 19% between 0 and 15 degrees. The map generated was considered an important tool for planning of fire prevention in the study area, for use in environmental education work with the neighborhood residents and visitors to the station, and for the management of fire in the region. The map can also be used as a tool for decision making by identifying areas with different degrees of vulnerability to fire.Pages: 7918-792

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