Navegando por Orientadores "VELOSO, Gabriel Alves"

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Acesso aberto (Open Access)
Análise da vulnerabilidade ambiental da sub-bacia do Jaurucu – Brasil Novo Pará
(Universidade Federal do Pará, 2022-08-29) FREITAS, Jaylim Reis de; VELOSO, Gabriel Alves; http://lattes.cnpq.br/9757471213923099; https://orcid.org/0000-0002-3655-4166
The overall objective of this study is to analyze the environmental vulnerability of the Jaurucu sub-basin and to understand how land cover and land use changes between 1990 and 2020 affect the loss of its landscape potential and its geoecological and socioeconomic features, including the pattern of encroachment of environmental systems. . , possibilities and limits of use and the impact on spatial changes. To achieve the desired goals, the theoretical and methodological foundations of the earth system approach, the theory of ecological dynamics, the concepts of landscape, land system and stability of the environmental system were chosen; The concepts of risk and vulnerability were introduced to avoid confusion when understanding these concepts. The research used techniques and methodological procedures as theoretical and methodological support for mapping environmental systems, assumptions by Bertrand (2004), Sotchava (1977), Tricart (1977), Monteiro (2000), Souza (2000) and others. The cartographic products were created with the support of geographic information systems (GIS). The environmental vulnerability analysis was adapted by applying the methodology of Crepani et al. proposed method. Persons. (2001), Grigio (2003), Tagliani (2003), Costa et al. (2006), Oliveira and Mattos (2014), based on Tricart (1977). Field work has been performed to verify the generation of land cover and land cover maps using MapaBiomas, vulnerability determinations are calculated using the grid calculation tool from algebraic equations crossing data in the GIS environment. Therefore, creating a sustainable development plan requires planning and analysis of the environment. Understanding vulnerable environments and the systems used within them helps with territory planning.
Acesso aberto (Open Access)
Análise do papel de parcelamentos do solo urbano como estruturadores da expansão urbana da sede de Altamira-PA
(Universidade Federal do Pará, 2022-08-30) DIAS, Ricardo de Lima; VELOSO, Gabriel Alves; http://lattes.cnpq.br/9757471213923099; https://orcid.org/0000-0002-3655-4166
The performance of agents producing urban space in Altamira has gone through several phases, from the opening of the trans-Amazonian highway (BR-230) in the 1970s to the construction of the Belo Monte Hydroelectric Power Plant complex in the early 2011s. contributed significantly to the population density of the region, producing urban spaces driven by real estate speculation and real estate producing agents, especially production by subdivisions that contributed to the current configuration of the urban fabric, densifying new areas and creating new peripheries, marked by discontinuity. and low occupancy density. In this way, the present research aims to analyze the dynamics of the expansion of urban space in Altamira-PA from the perspective of real estate development with the advent of the Belo Monte hydroelectric complex, highlighting the location of urban land subdivisions, infrastructure urban areas, housing densities, urban control and regulation instruments and in addition to the socio environmental reflexes related to these activities. The methodological procedure adopted to carry out this research can be divided into the Pre-Field stages with a bibliographic and documentary survey on various concepts related to urbanization, urban space, promoters, real estate sector, urban expansion and land subdivision, in addition to data consultation and information in Official Bodies and Institutions; Field, with in loco verification of points to verify the current state of the most deficient land subdivisions of basic infrastructure in the city of Altamira; and the Post-Field (analytical/comparative), consolidating the information collected in the form of graphs, tables, charts and cartographic representations, in addition to discussions and propositions on the theme of the dynamics of urban expansion conducted by land subdivision projects in the area of urban perimeter of Altamira. It was found that the real estate production in Altamira has contributed to the configuration of a fragmented urban reality from a spatial point of view, characterized by aspects of continuity and densification and discontinuity and sprawl, with the location of many projects in areas far from the urban core. main feature, a reality that has become the standard that characterizes the urban fabric of the Altamira headquarters.
Acesso aberto (Open Access)
A dinâmica do uso e cobertura da terra na Amazônia Oriental: uma análise a partir do município de Senador José Porfírio-PA (2010 a 2020)
(Universidade Federal do Pará, 2021-08-13) MOURA, Valdinei Mendes; MARINHO, José Antônio Magalhães; http://lattes.cnpq.br/1248631456407324; https://orcid.org/0000-0001-9870-6930; VELOSO, Gabriel Alves; http://lattes.cnpq.br/9757471213923099; https://orcid.org/0000-0002-3655-4166
In the Xingu Integration region, the dynamics of land use and land cover takes place through accelerated transformations, consolidated mainly by road transport networks, especially from the 1970s onwards with the opening of the Transamazon Highway (BR-230). Thus, the work prioritized analyzing the dynamics of land use and land cover in the municipality of Senador José Porfírio, located in an area of intense socioeconomic and environmental change, especially after the installation of the Belo Monte Hydroelectric Power Plant. In this sense, the methodological procedures focused on collecting information and data in digital databases, and on the subsequent analysis and interpretation of the material obtained and bibliographical research on the dynamics of land uses in the Amazon region and on the use of geotechnologies as tools for monitor the territorial dynamics of these uses. Thus, in the first stage of the work, bibliographical research was carried out in digital databases, seeking studies on the dynamics of land uses in the Amazon region and on the use of geotechnologies as tools to monitor the territorial dynamics of these uses, particularly in relation to the process. deforestation, one of the most sensitive issues in the environmental issue today. In the second stage of the work, the website of the Annual Mapping Project for Land Cover and Land Use in Brazil - Mapbiomas, Brazilian Institute of Geography and Statistics (IBGE) and Instituto Socioambiental (ISA) were searched for land use and occupation of the municipality of Senador José Porfírio for the period 2010 to 2018. The same is being done in PRODES 2019 (General Coordination of Earth Observation-OBT/INPE). The objective of the research was to analyze the dynamics of land use in the municipality of Senador José Porfírio, from 2010 to 2020, considering the historical and economic aspects, as well as their socio-environmental, landscape and territorial expressions. In the results, it was found that, for this period of research, agriculture suffered variations in its perennial culture in relation mainly to government restrictions, but there was an emphasis on cocoa production. It was analyzed that illegal logging, deforestation, in addition to land grabbing for agricultural production has been advancing mainly in areas of settlements and indigenous lands, which intensified political, socio- environmental, economic, land and landscape problems, especially with the sector agriculture, mining, traditional peoples and agroextractivos. In this context, there is an accelerated process of antagonistic appropriation of space by its various social agents for eventual productions of territories and territorialities. In this regard, in this 21st century, with the entry of international capital in the municipality of Senador José Porfírio-PA, local populations and their ways of life are still disregarded.
Acesso aberto (Open Access)
Dinâmica geoambiental e as transformações da paisagem da bacia hidrográfica do rio Ituna, Pará
(Universidade Federal do Pará, 2024-04-08) BALIEIRO, Bruna Taynara de Souza; VELOSO, Gabriel Alves; http://lattes.cnpq.br/9757471213923099; https://orcid.org/0000-0002-3655-4166
The diversity of public policy incentives and the overlapping of large development projects in the Amazon have made it a complex region, directly influencing the transformations of the landscape and its geoenvironmental dynamics. The study area of this research comprises the Ituna watershed (BHRI), located in the municipalities of Altamira-PA and Senador José Porfírio-PA, currently consisting of six land units, including settlement projects and indigenous land, created under different contexts . Furthermore, the area is under the influence of large projects such as the UHE Belo Monte and speculation about the implementation of the Volta Grande Project (Belo Sun) for mining exploration. Given these factors, the research analyzed the geoenvironmental dynamics and transformations of the BHRI landscape, through changes in land use and cover, over 36 years, considering the context of public policies to encourage forms of land use (land policies and agricultural/agriculture), as well as the insertion and speculation of large projects in its zone of influence. The results point to significant changes on a multitemporal scale, where in 2022 Agriculture represented 60,829.59 hectares (38.67%) and Forestry Formation 95,879.32 hectares (60.96%) of BHRI, it is important to highlight that of this total Forest Formation, 17,464.9533 hectares are located in the Koatinemo TI. The data confirm a substantial increase in the expansion of agriculture and livestock over the BHRI forest. The study also highlights the conservation of the forest in the Koatinemo TI when compared to settlement projects. The study reinforces the complexity of creating and executing developmental policies for the Amazon and how the actions of human beings constantly affect the landscape.
Acesso aberto (Open Access)
Mudanças geoecológicas na terra indígena Paquiçamba com exploração hidroelétrica do rio Xingu - Amazônia Centro-Oriental
(Universidade Federal do Pará, 2024-02-22) SILVA, Nadson de Pablo Costa; PAULA, Eder Mileno Silva de; http://lattes.cnpq.br/8647718165947306; HTTPS://ORCID.ORG/0000-0002-6895-2126; VELOSO, Gabriel Alves; http://lattes.cnpq.br/9757471213923099; https://orcid.org/0000-0002-3655-4166
Human action, guided by the logic of "progress", has intensely altered the natural landscape, exploiting the environment without considering its capacity for regeneration. In this way, understanding nature's capacity to regenerate is fundamental to developing strategies that can mitigate the various environmental impacts, or even be able to remedy such interventions, especially in areas of socio-environmental vulnerability, such as indigenous lands. Therefore, the study area is the Paquiçamba Indigenous Land located in the Greater Xingu, which has been experiencing an intense process of occupation and environmental impacts. From the 1970s onwards, public policies boosted the occupation of the Amazon, with projects to open roads and create settlements in the region. More recently, the construction of the Belo Monte hydroelectric plant has created new challenges for the TI. In this context, the problem of changes to the environment of the Paquiçamba Indigenous Land has arisen, which has significantly altered the lives of the Juruna indigenous people of the Volta Grande do Xingu. The research analyzed the change in water and land within the boundaries of the Paquiçamba Indigenous Land, from a Geoecological perspective, which was guided by Bertrand (2004), Rodriguez, Silva and Cavalcanti (2013), Rodrigues and Silva (2013; 2019), Souza (2010), Paula (2017). The geoecological compartmentalization and analysis of changes in the Paquiçamba Indigenous Land between 2011 and 2023 showed intense changes. The main one is the decrease in the flooded area, which went from 4,911.27 hectares in 2011 to 2,854.03 hectares in 2023, a reduction of 41.88%. This reduction, attributed to the construction of the Pimental dam in 2016, caused significant changes in the area. Beach areas decreased, while rocky areas increased from 1,477.80 hectares in 2011 to 1,889.80 hectares in 2023. Navigable areas have also been reduced, directly impacting the lives of the Juruna indigenous people who depend on the rivers for fishing, transportation and access to resources.
Acesso aberto (Open Access)
Transformações socioambientais e ecologia da paisagem nas microbacias urbanas de Altamira - Pará
(Universidade Federal do Pará, 2022-10-31) COSTA, Vagner Nascimento; VELOSO, Gabriel Alves; http://lattes.cnpq.br/9757471213923099; https://orcid.org/0000-0002-3655-4166
The urban space must be understood in a dynamic perspective having as reference the growth of the city. In terms of environmental issues, the disorderly growth associated with the inexperience of environmental and territorial planning incurs in the formation of socioenvironmental problems and in the restructuring of the landscape. Through mathematical modeling and geographic data, it is possible to understand the processes that operate between social and cultural environments and the available natural resources. Associated to the geoprocessing technologies, the landscape metrics are valuable tools in Landscape Ecology to measure changes in a area of study by establishing temporal assessments of the modification of landscape fragments, through the evaluation of criteria and establishment of propositions that allow understand the transformation capacity of the territory. The general objective of the present research is to understand the socio-environmental and ecological transformations of the landscape in the urban watersheds of Altamira/PA, enabling the formulation of a prognostic scenario to support the environmental urban planning process through spatial assessment and application of landscape metrics to the forest fragments related to the municipal urban perimeter, considering the time periods of 2000, 2010 and 2020.