Spatiotemporal patterns of deforestation and forest degradation in the vicinity of the Tucuruí Dam were analyzed.
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Remote sensing, GIS and statistical analysis were integrated.
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Deforestation and forest degradation followed similar spatial patterns from 1988 to 2013.
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Canopy loss significantly dropped to half of the historical level after 2008.
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Dam-mediated human land use plays a central role in deforestation and forest degradation.