The Amazon is constituted today as the largest tropical rain forest remnant and continuous world and home to the largest diversity of plants and animals of all the Earth's biomes, and is critical to maintaining biodiversity. The region has undergone significant changes in recent decades, changes that are resulting mainly from changes in the landscape / vegetation cover, driven by population growth and inappropriate management practices of land, the result of deforestation, fires, changes in agricultural activities, livestock, farm logging, colonization programs, opening of roads and problems landowners. Among these factors, burning and forest fires becomes the most critical problem for the region, for fire management by farmers in most cases is done improperly, escaping control and causing economic damage, social and ecological. Forests that have burned since become more susceptible to new fires, as they become more flammable due to the change in canopy structure, dynamics of relative humidity, air temperature and fine fuel on the forest floor. Thus, this study aimed to investigate the diurnal patterns of flammability of intact and degraded forests in the region of Santarém - PA, area of major changes in land use pattern, with intense agriculture and farming, the region also presents significant number outbreaks of fire. It was observed that intact forests in the region are significantly less flammable than the degraded forests, and edges of degraded forests are more flammable than inside, supported by data on the dynamics of relative humidity and air temperature, humidity and rate of litter opening the canopy. These data were associated with socioeconomic data through interviews, in order to learn how farmers manage the fire, where the results showed that the training of fire management significantly influence the adoption of best practices in use of fire, for example, do not put fire in time critical (between 11 and 15 hours for the study area), making steel, burn against the wind, waiting for the first rain, among others. The size of the property does not significantly influence the proper use of fire, but small farmers are the ones who use it in their productive activities, since this constitutes the cheapest way to clean and prepare the land. In this sense, this paper aims to show the need for investment in research on the flammability of forests, improvement of the analysis of satellites associated with field research as a way to soften and perhaps solve the problem of fires in the Amazon, and contribute to adoption of a policy of encouraging the reduction of burning by farmers, coupled with the use of fire training, access to information technologies and alternatives to fire management.
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