ResumoAs regiões de florestas tropicais estão em constantes transformações, em parte, resultantes do manejo por populações tradicionais aonde os sistemas de cultivo itinerante (agricultura migratória e de corte queima) desempenham um importante papel. No entanto, juntamente a estas discussões, são questionados os impactos e a sustentabilidade destes sistemas de cultivo e suas contribuições para o desmatamento. Diante disso, procuramos maiores informações sobre a prática da agricultura migratória por meio do estudo do uso e conversão de hábitat florestal em unidades produtivas agrícolas de duas comunidades tradicionais situadas em áreas de terra firme. Concluímos que indicativos da sustentabilidade desse sistema estão associados à prática integrada à floresta e ao período destinado ao pousio das áreas.
AbstractTropical forest regions are in constant transformation, partly resulting from management by traditional populations where shifting cultivation systems (swiddenfallow and slash and burn agriculture) play an important role. However, along with these discussions, the impacts and sustainability of these farming systems and its contribution to deforestation are often called into question. Therefore, this research sought to generate information on the practice of shifting cultivation by studying the conversion of forest habitat to agricultural areas located in two traditional communities in upland areas of Central Amazonia. We conclude that the sustainability of this system is based on its character of being integrated into surrounding forests and the length of the fallow period maintained by farmers who engage in this practice.
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