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A Bacia Hidrográfica do Rio Itacaiunas (BHRI), tem suas principais nascentes formadas pela confluência dos rios Água Preta e rio Azul localizados na serra da Seringa no município de Água Azul do Norte, estado do Pará. Grande parte dos recursos econômicos advém da exploração mineral, sofre também forte impacto ambiental oriundos destas e de outras atividades ligadas ao aproveitamento econômico de seus recursos naturais, inclusive nas cabeceiras dos rios que são importantes áreas de recarga hídrica. Assim, este artigo tem como objetivo realizar a caracterização morfométrica e geomorfológica para análise da suscetibilidade a inundações na Bacia Hidrográfica do Rio Itacaiunas (BHRI). Utilizando de ferramentas atreladas a geotecnologias. Os resultados sobre a altimetria, verificou-se a altitude máxima de 879 metros na bacia e 80 metros na foz, além da delimitação das unidades geomorfológicas tendo a Serra dos Carajás como a mais expressiva. Com relação aos índices morfométricos foram definidos o coeficiente de compacidade (kc) de 0,64; fator de forma (F) 0,63; índice de circularidade de 0,29; com padrão de drenagem, variando de dendrítica a paralelo com canais de até 5ª ordem; A densidade de drenagem foi de 0,16 km/km2; densidade de hidrografia de 7,67 canais/km2. Portanto, esses dados são para análise morfométrica e geomorfológica de caracterização de bacia hidrográfica em questão, tornando o caminho para chegar aos produtos cartográficos aqui expostos como boas respostas aos objetivos de estudo desta análise.Palavras-chave: Geoprocessamento, Altimetria, Susceptibilidade a inundação, Sudeste do Pará. Morphometric and Geomorphological Characterization of the Itacaiunas River Watershed (BHRI), Eastern Amazon, Brazil ABSTRACTThe Itacaiunas River Basin (BHRI) has its main sources formed by the confluence of the Água Preta and Azul rivers located in Serra da Seringa in the municipality of Água Azul do Norte, state of Pará. Also suffers a strong environmental impact from these and other activities linked to the economic use of its natural resources, including in the headwaters of rivers that are important areas of water recharge. Thus, this article aims to carry out morphometric and geomorphological characterization for the analysis of susceptibility to floods in the Itacaiúnas River Watershed (BHRI). Using tools linked to geotechnologies. The results of the altimetry, the maximum altitude of 879 meters in the basin and 80 meters in the mouth was verified, in addition to the delimitation of the geomorphological units with the Serra dos Carajás as the most expressive. Regarding the morphometric indices, the compactness coefficient (kc) of 0.64 was defined; form factor (F) 0.63; roundness index of 0.29; with drainage pattern, ranging from dendritic to parallel with channels of up to 5th order; The drainage density was 0.16 km/km2; hydrographic density of 7.67 channels/km2. Therefore, these data are for morphometric and geomorphological analysis of the characterization of the watershed in question, making the way to reach the cartographic products exposed here as good answers to the study objectives of this analysis.Keywords: Geoprocessing, Altimetry, Susceptibility to flooding, Southeast of Pará.

Advances in monitoring capacity and strengthened law enforcement have helped to reduce deforestation in the Brazilian Amazon since the early 2000s. Embargoes imposed on the use of deforested land are important instruments for deterring deforestation and enabling forest recovery. However, the extent to which landowners respect embargoes in the Brazilian Amazon is unknown. In this study, we evaluated the current recovery status of embargoes due to deforestation imposed between 2008 and 2017 to conduct the first large-scale assessment of compliance with embargo regulations. We observed forest recovery in only 13.1% (±1.1%) of embargoed polygons, while agriculture and pasture activities were maintained in 86.9% (±1.8%) of embargoed polygons. Thus, landowners openly continue to disrespect environmental legislation in the majority of embargoed areas. We attribute the marked non-compliance observed to limited monitoring of embargoed areas, as environmental agents seldom return to verify the status of embargoed lands after they have been imposed. Recent advances in remote sensing provide low-cost ways to monitor compliance and should form the basis of concerted efforts to ensure that the law is observed and that those responsible for illegal deforestation do not benefit from it.