Navegando por Assunto "Paragominas (PA)"

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Acesso aberto (Open Access)
Da fronteira à sustentabilidade?: o caso de Paragominas-PA
(Universidade Federal do Pará, 2013-10-11) GALVÃO, Igor Maurício Freitas; ROCHA, Gilberto de Miranda; http://lattes.cnpq.br/2436176783315749
Paragominas has made a pole of the frontier expansion in the Amazon, experiencing a model of development guided by the search of economic growth along its History. This model has been featured by the expansion of economic fronts, notedly, the livestock activity and timber extraction, which generated an economic growth linked to social problems and environment degradation. Since the last decade of this century there have been changes on this case scenario, with alterations on the productive basis and meaningful improvements on the town's natural resources management. The "Paragominas Green Town Project", which started in 2008, is considered as a historic fact that traces the transition from the frontier economy to a sustainable development model. The current study demonstrate that the changes seen in the town happened before this historic fact and have occurred because of variations on the economic viability of the developed activities and/or for reasons due to the new global economy consumption pattern, as characteristics of a new Amazon frontier stage. On the new Paragominas frontier stage, despite the environmental and ecological dimensions growth, there remain the challenges of a promotion to a more democratic natural resources access, a better generated riches distribution and a better quality of life for its citizens, problems linked to the social dimension of a wider development process, that feature indeed, a model of sustainability.
Acesso aberto (Open Access)
Mineralogia e geoquímica dos perfis bauxíticos da mina Miltônia 3, região de Paragominas/PA
(Universidade Federal do Pará, 2015-10-16) PEREIRA, Carla Braga; ANGÉLICA, Rômulo Simões; http://lattes.cnpq.br/7501959623721607
The Paragominas Bauxite Province is located in eastern of Pará state and western of Maranhão state, occupying the NW portion of Grajaú Basin and the southern of Bragantina platform, with an area of approximately 50.000 km2. The important bauxite deposites from that area were originated by an intense chemistry weathering above siliciclastic rocks from Cretaceous age. This research focus on the mineralogical e geochemistry studies of bauxite profiles in the area of Bauxite mine that belongs to the Norsk Hydro Company, in Miltonia 3 mine, municipality of Paragominas, Pará state. This research aims to contribute to understanding of the origin and developing of these profiles. Were conducted two sample collections of lateritic profiles representatives of Miltonia 3 mine, following the chemistry, mineralogy and texture differences of the horizons that structures the studied profiles. We used the following methodological procedures and/or instrumental techniques: X-rays Diffraction (XRD), Scanning Electron Microscopy (SEM), petrology and chemical analysis. The lateritic profiles studied in this research were described according to their horizons structuring: Amorphous Bauxite (AB), Crystallized Amorphous Bauxite (CAB), Crystallized Bauxite (CB), Ferruginous Laterite (FL). In the profile 1, the overlying horizon to FL is described as Nodular Bauxite (NB), while in the profile 2, it is the Crystallized Nodular Bauxite (BNC). Both of these profiles are covered by unconsolidated sandy-clay horizon, with an orange red coloring, called by many authors as Belterra clay. Petrographically, the horizons show the following typical mineral of a bauxitic/lateritic profile: gibbsite, kaolinite, goethite, hematite e anatase. This paragenesis was confirmed by XRD analysis, which the mineral content varies for each horizon. Allied to the SEM analysis it is possible to describe the morphologic aspect of gibbsite and kaolinite crystals. It is noticeable the presence of three gibbsite generations, which the precocious phase is part of matrix, sometimes, associated with iron oxide-hydroxide, showing a cryptocrystalline character. The second generation comprises microcrystalline crystals that fill partially or totally pores. The latest generation is cryptocrystalline crystal found occupying totally or covering the cavity walls of cutans. The geochemical pattern of Al2O3, Fe2O3, SiO2 and TiO2 residual phases are similar in both profiles, as well as the contents of Al2O3_available e SiO2_reactive. Over the profile, the contents of SiO2 e SiO2_reactive are more expressive in the most clayey layers, and they reflect the kaolinite content. The content of Al2O3_available has the same Al2O3 behavior due to: the first is related to gibbsite, the most elevated contents are in top of AB, CAB e CB, and the last represents the most economically exploitable level. According to the order/disorder degree of this kaolinite in the soil profile, it was verified an elevation of the FWHM (Full Width at Half Maximum) results from base towards top, that showed the possibilities of: 1) kaolinite degradation with the process of developing of lateritic profile; and/or neoformations of new kaolinite generations with low crystallinity. The new data furnished during the analysis give support to understand the process that produced the mineralogical, chemistry and textural differences and similarities that exist between bauxite horizons, as well as the recovery of bauxitization process (two phases of bauxitization) that resulted in formation of Nodular Bauxite (NB) and Crystallized Nodular Bauxite horizons, leading the hypothesis of polyphasic and complex evolution of studied profile, wich culminated in the origin of bauxitic/lateritic deposits.
Acesso aberto (Open Access)
Monitoramento das paisagens de Paragominas: uma abordagem geossistêmica
(Universidade Federal do Pará, 2016-08-30) PIMENTEL, Gustavo Martinez; LOPES, Luis Otávio do Canto; http://lattes.cnpq.br/1013147545099173; SILVA, Christian Nunes da; http://lattes.cnpq.br/4284396736118279
In the Amazon, to monitor and predict land use dynamics, do not occur simply. The occupation in this region, starting from the opening of the BR-010 hayway and based on deforestation and insertion of pastures for cattle rearing, did not provide this productivity gradient as in other parts of the country. A great example is Paragominas/Pará held at the time the logging as the main economic activity, the city experienced a paradigm shift in 2008, the result of a joint action between civil society, private capital and public institutions, managed to recycle and restructure its economy more sustainable activities. Despite progress, much can still be done for better productivity and proper use of natural resources in the territory. Thus, it is understood that the territory is the space where decisions and where politics materializes are taken, with direct influence on the management of natural resources. Therefore, it’s important to identify the elements of the landscape, including the geomorphology, which stands for determining other elements, such as vegetation, soil, fauna, etc.). Thus, considering the theoretical basis and the GIS as a support, it was mounted one geographic database with primary information, secondary and adapted secondary data. This base was inserted into a cell grid system for analysis. From this grid it was possible to distinguish twelve geofacies to Paragominas. From them, it assesses that in the municipality of Paragominas, in most cases, have forest areas with 10,788.74 square kilometers (55.78%) and when it comes to land use, pastures totaling 2789.11 square kilometers (14.47%). Regarding the rate stability, forests stand out with the highest percentage, about 70%, land uses the present intermediate values (50%) and the Low and High “Capoeiras Baixa e Alta” have the lowest levels of stability (15%). As the dynamics of the evolution of land use in geofacies, livestock is the activity that most deforested the forest in Paragominas, with deforestation rates ranging from 5% to 15% of each geofacie. Agriculture in class, the dynamic occurs in the conversion of grasslands for planting beans, with values strongly concentrated in the areas of Plateaus, with conversion rates ranging from 8% to 25%. As for forest regeneration processes, geofacies Depression, Plains and Valleys have higher rates of these geofacies between 5% and 20%. In contrast, classes more forest regeneration showed no patterns among geofacies. In an overview, the study showed that the insertion occurred dynamics of mechanized agriculture next to highways and livestock is still deforesting vector in the municipality. Already the Forest Plantation this consolidation process in the region and is not very representative area. With the database was possible to define the limits of geofacies and from them verify the dynamics of using existing land in Paragominas, reflecting the same land use dynamics (agricultural transition, deforestation, forest degradation, among others) that are occurring in the Amazon.
Acesso aberto (Open Access)
O novo código florestal brasileiro e a gestão pública municipal na Amazônia: o caso de Paragominas
(Universidade Federal do Pará, 2015-11-10) NUNES, Adriana; FARIAS, André Luís Assunção de; http://lattes.cnpq.br/5310171409459863; MORAES, Sérgio Cardoso de; http://lattes.cnpq.br/4568311568729454
Three years after the enactment of the new Brazilian Forest Code, the horizon, as to its real contribution is not yet well defined. Main instrument that embodies the public policy of conservation of private forests and grounded in the principles of sustainable development, the new Code includes a series of controversies to be clarified and overcome challenges. The meaning of this law exceeds the present time, showing historical connections with conflicting social forms of appropriation of natural resources and the constant struggle of groups with power to weaken environmental standards. Such a context motivated this work we aimed to examine the practical experience of internalization of the new Code through the case study of the municipality of Paragominas (PA), explaining how the relaxation of provisions and the creation of the new instruments of the Forest Code repercussions the local environmental management, which, in turn, policies are transformed into concrete actions. Despite the analysis of the implementation process of a public policy instrument does not cover the final results, it serves as a procedural evaluation, allowing monitor and understand how its impacts are built. To analyze the actions, interactions and contradictions of the new Code, the work has its foundations in biology approaches Conservation and Ecology Policy in line; the observation and reflection of actions, processes and tools, conducted by local environmental management intersection with the new Code; and the application of interviews with managers and municipal leaders. As for the results, are registered in the following pages, the intricacies of a new scenario, in which the implementation of the new Code proves challenging and largely solitary for municipalities; but still, can yield some progress in control and environmental planning, due to the new instruments. However, there appeared a "new" full of contradictions for the conservation of forest resources and impregnated unsustainable struggle for expansion of private ownership of natural resources, where there are subtle dynamics, but intense in the ability to promote environmental change.
Acesso aberto (Open Access)
Programa Parâmetros em Ação – Meio Ambiente na escola: avaliação de sua efetividade na rede pública de ensino em quatro municípios no estado do Pará
(Universidade Federal do Pará, 2006-05-31) KRAUSE, Hildegard Magdalena Klever; AZEVEDO-RAMOS, Claudia; http://lattes.cnpq.br/1968630321407619
It is expected in law that Environmental Education must be offered by schools in all levels in an interdisciplinary approach. This possibility should be established through a teachers capacitating policy, admitting that the environmental theme should be worked out in the routine of the schools, through interdisciplinary and transversal activities, and also including the theme in each discipline content. Because of the already known complexity of people becoming aware, it is expected that this kind of programs could contribute to structure the harmonic relationship between society and the environment and promote de sustainable use of natural resources. It is up to ask, if the proposal included in an continued teachers training program implemented in national scope - Programa Parâmetros em Ação – Meio Ambiente – is achieving its objectives. The study was realized in several levels of the public school system in four cities in the Pará state, which one of them was characterized as our control because it did not implement the program. The interest of this study was to assess, in the wide and complex teachers training process, how and if the teachers and the students of Paragominas, Ipixuna, Dom Eliseu and Ulianópolis practice the guiding directive that are diffused and propagated through this Environmental Education public politic. Our expectation was that the cities that developed this experience for longer time, would offer a general better performance, and also that schools, teachers and students would develop behaviors were autonomy actions should appear. However, this was not the outcome reached in this study. The expected difference between our control city and the others was not evident, there was no increase in the performance as a result from the time spent exercising the program, as well as the behaviors could remind a dynamic conservationism stile. This way, the implementation of the mentioned program did not present significative differences between the researched schools, according to the political, ideological, social and pedagogic structure of the Environmental Education program.
Acesso aberto (Open Access)
O Projeto Município Verde de Paragominas - PA e a questão Social no discurso de sustentabilidade
(Universidade Federal do Pará, 2024-03-12) TOURINHO, Luana Peixoto; FOLHES, Ricardo Theophilo; http://lattes.cnpq.br/5612208724254738
The Município Verde project is a development plan implemented in Paragominas–PA to stop deforestation in its territory and encourage sustainable practices in the formulation of the municipal economic matrix and in the activities of local society. The present study aims to investigate the relationship between the Project Município Verde and the social indicators of Paragominas–PA between 2010– 2023 with the purpose of understanding municipal sustainability. The Objetive of the study is to present an overview of sustainable development and sustainability, as well as understanding the Município Verde Project and its relationship with sustainability, in the same way as examining the social indicators of Paragominas between 2010– 2023 and their relationship with the Município Verde Project and, finally, analyze the results of the absence of a social aspect in the Município Verde Project of Paragominas–PA. To this end, bibliographical research was used as a data collection method, through the study raised in the theoretical framework on sustainability and the Município Verde project, as well as the survey of social indicators in Paragominas, between the years 2010–2023 present in the public databases that enabled qualitative analysis of the findings. It was evident that, for the sustainability of the Município Verde Project based on the social indicators of Paragominas between 2010–2023, it is necessary to review the implemented development model so that, more than an economic development plan, this is a sustainable local development model. Furthermore, the gap in the social approach in the project had an impact on the municipality's social indicators and indicates that the local government has the challenge of implementing sustainable development measures in the Município Verde Project related to social issues. Finally, through the entire study carried out and the pedagogical suggestions presented, it was possible to confirm that the sustainability discourse in Paragominas based on the Município Verde project still needs to face social issues in the municipality in order to provide sustainability to this model of local development.
Acesso aberto (Open Access)
Regeneração florestal associada a tamanhos de clareiras: implicações para o manejo florestal sustentável
(Universidade Federal do Pará, 2006-05-30) PINTO, Andréia Cristina Brito; AZEVEDO-RAMOS, Claudia; http://lattes.cnpq.br/1968630321407619
The conviction on the capacity of forest regeneration is one of the backbones of the sustainable forest management in a long term. The performance of the regenerative process, however, depends on the damage intensity of the logging activity, which can be reduced according to science-base interventions on suitable criteria to direct the good practices. In this sense, the aim of this study is to evaluate the effect of different sizes of logging gaps on forest regeneration. The study was carried out in eastern Amazonia (Paragominas, Pará state, Brazil). We evaluated and monitored links of the regenerative process (e. g., herbivores vertebrate, seed rain, climatic factors) and/or others direct attributes of the regeneration (e. g., plant density, species richness, growth, recruitment, mortality) in two study sites. At Rio Capim ranch, with recent logging, fifteen 1.3 year old logging gaps were selected in an area of 300 ha of reduced impact logged forest and monitored for fifteen months. These gaps comprised three size categories: five small gaps (30-100 m2), five medium gaps (500-800 m2) and five large gaps (> 1.500 m2). At Cauaxi ranch, with old logging activity, twelve 8.5 years old logging gap had the direct attributes of its regeneration evaluated. The size categories were as above, except the larger gaps were smaller (1,000-1,400 m2). Our prediction is that higher species richness will occur in places of intermediary disturbances, in this case, in medium gaps (sensu Connell, 1978). Overall, this hypothesis was not confirmed. In Rio Capim ranch (1.3 year post-logging), although the larger gaps presented the lowest plant richness, the medium gaps were not the richest in species. Larger gaps showed more divergences to closed forest (control), they had higher temperatures, higher density, higher plant height growth, and higher vine growth. In medium gaps, the vines and pioneers species had also higher growth than in closed forest. The small gaps were more similar to closed forest, only differing on its higher pioneer density and growth (except vine growth). Both the seed rain and the impact of the herbivores on regeneration were indifferent to gap sizes, but show dependence on punctual features, such as presence of feeding sources to fauna and to seed production. The old gaps of Cauaxi ranch showed no significant differences among sizes and closed forests. Comparatively, the old gaps had lower density and higher relative species richness than younger gaps. According to our results and their potential implications to forest regeneration, the main recommendation of this study is that large gaps must be avoided. The small and medium gaps congregate more fortunate attributes to the sustainability of the timber management.