Navegando por Orientadores "GODOY, Bruno Spacek"

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Acesso aberto (Open Access)
Análise temporal da cobertura vegetal de um fragmento da RPPN Seringal Triunfo, Ferreira Gomes - Amapá
(Universidade Federal do Pará, 2021-12-27) SCHNEIDER, Juliana Cristina; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; https://orcid.org/0000-0001-9751-9885
The construction of dams became necessary for national development, the Amazon region, for having a great hydro-energetic potential, was also used for the construction of these projects. River Araguari's hydrographic basin has three hydroelectric dams (Coaracy Nunes, Ferreira Gomes and Cachoeira Caldeirão) built in its middle course, in the municipality of Ferreira Gomes, however the construction generated several problems, such as loss of territoriality, difficulties in subsistence of villages and the environment modification. However, in 1998, there was the enactment of the Seringal Triunfo National Heritage Private Reserve, which aims to conserve biodiversity. Therefore, there is a need for studies aimed at improving the knowledge of vegetation cover, which have occurred since the enactment of the RPPN. In this sense, the present study sought to understand whether there were changes in the vegetation cover in the RPPN from 2000 to 2015, after its approval and with the construction of UHE Ferreira Gomes and Cachoeira Caldeirão. For this, remote sensing data were used. Twelve images obtained from the TM/Landsat-5, ETM+/Landsat 7 and OLI/Landsat-8 satellites were used, delimiting the study area with the creation of two polygons (buffer), one located within the RPPN and another adjacent with approximately the same size. Digital processing techniques were applied to these images with the aid of pixel counting software. The Normalized Difference Vegetation Index (NDVI) was calculated, making it possible to obtain the median. The obtained results show that the image processing allowed differentiate its constituent elements (vegetal cover and exposed soil). The calculation of the NDVI medians, for the scenes between the years 2000 to 2015, in the area located within the RPPN ranged from 0,37 to 0,64 and the medians of the adjacent area ranged from 0,29 to 0,63, thus, the statistical analysis showed no relationship with the years (F1,10 = 0,02 and P = 0,87), indicating that during the analyzed period there was a stability in the vegetation cover, the same occurred for the adjacent area (F1,10 = 0,11 and P = 0,74). This stability in the area of the RPPN may be related to the role it plays in nature conservation and in the adjacent area to the stagnation of population growth in the municipality. The use of images from remote sensors proved to be a very valuable tool for the present research, even without carrying out an on-site visit, it was possible to calculate the NDVI. Therefore, it is recommended for future work to analyze the NDVI from years prior to 2000, that is, years prior to the approval of the RPPN, as well as on-site visits, for the validation of the components observed in the NDVI, for the NDVI classification to the studied locality.
Acesso aberto (Open Access)
Dinâmica temporal da cobertura vegetal da Comunidade Água Fria na RDS Alcobaça em Tucuruí-PA
(Universidade Federal do Pará, 2021-12-27) SILVA, Renata Albuquerque da; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; https://orcid.org/0000-0001-9751-9885
The Tucuruí Hydroelectric Power Plant has great socioeconomic and environmental importance for the southeast region of Pará, due to the formation of its artificial lake, resulting in changes in vegetation cover and loss of biodiversity. This study seeks to understand the dynamics of change in vegetation cover that occurred in the Água Fria Community, RDS Alcobaça, after the filling of the Tucuruí Reservoir, making it possible to understand the changes resulting from deforestation and subsidize proposals for interventions. Digital Image Processing (PDI) techniques were used, divided into stages: Landsat 8, Landsat 7 and Landsat 5 image acquisition; combination of spectral bands (Band 3 and Band 4) and atmospheric correction; NDVI calculation, map production and statistical analysis. To obtain the orbital images, the U.S.G.S. digital platform was used, in the months of July, August and September, from 1990 to 2020, with intervals of two years. The NDVI value showed no relationship with the years, indicating that during the years analyzed there was no significant reduction in the vegetation cover on the ground in the Água Fria community, in the Alcobaça RDS.
Acesso aberto (Open Access)
O papel da governança na Floresta Nacional do Carajás para o efetivo desempenho na conservação da cobertura florestal
(Universidade Federal do Pará, 2024-04-30) CRUZ, Michelly de Souza; NAHUM, João Santos; http://lattes.cnpq.br/9009465125001273; https://orcid.org/0000-0001-7791-9240; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; https://orcid.org/0000-0001-9751-9885
Protected areas serve as strategies for the preservation and maintenance of forest remnants and biodiversity within local biomes, as well as for the sustainable management equilibrium and mitigation of climate change impacts. Land use within these spaces can lead to the decline of forested areas, thereby jeopardizing the intended objectives for establishing such territories. Effective and equitable governance can help in the pursuit of sustainable development within these areas. In our study, we assessed the effects of governance on the management of Carajás National Forest in conserving forest cover in the region, comprehending how governance practices impact the performance of conservation actions. We utilized geoprocessed images from Mapbiomas land use datasets of Carajás National Forest from the years 1998, 2004, 2010, 2016, and 2022, as well as a qualitative analysis of minutes from advisory board meetings from 2018 to 2023. Our findings indicate that mining and pasture activities are increasing within the National Forest, alongside the loss of grassland formations and rocky outcrops. Despite the loss of grassland vegetation, remnants of forest types experienced minimal loss within these spaces. The minutes showed active participation in discussions regarding environmental conservation in the face of mining activities; however, actions concerning pasture activities were absent. Discussions also included proposals for new zoning for mineral extraction in other zones within the National Forest. Although deliberated upon, actions in response to proposed activities remain minimal, leading to the growth of mining and pasture within the area and consequently, vegetation loss. To achieve effective performance in forest cover conservation, it is essential to invest in continuous improvement of governance, promoting more integrated, transparent, and proactive environmental management, aiming at actions addressing all anthropogenic land use activities and fostering a more inclusive environmental education.
Acesso aberto (Open Access)
Percepção ambiental sobre mudanças climáticas em comunidades costeiras na Amazônia, ameaças ao bem-estar e sobrevivência local: um estudo na Reserva Extrativista Marinha de Soure, Pará, Brasil
(Universidade Federal do Pará, 2023-08-04) ASSIS, Davison Marcio Silva de; MARTINS, Ana Cláudia Caldeira Tavares; http://lattes.cnpq.br/6547250062275801; https://orcid.org/0000-0003-4972-036X; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; https://orcid.org/0000-0001-9751-9885
Climate change, a global phenomenon with serious consequences for ecosystems, is affecting nature and the human populations that live in it and depend on its goods and services on a large scale, and coastal areas, being more exposed to the effects of this phenomenon, have been affected to an unprecedented extent. The reduction in the services provided by these areas has a direct impact on the way of life of the human populations living there, who have established a relationship of dependence on nature and its resources. The Marine Extractive Reserve of Soure, located on the coast of the Eastern Amazon, is characterized by the fact that it encompasses an area composed of three traditional communities whose way of life is based on a sustainable and subsistence relationship with nature. Despite its location in a protected area and its sustainable practices, the effects of climate change may pose serious threats. In this context, this work, which is characterized as interdisciplinary research, raised perceptions about climate change and sought to understand, in the light of these perceptions, how residents associate changes in the flow of goods and services from coastal ecosystems with this phenomenon. The raised perceptions reveal the high level of agreement for the occurrence of climate change. Although the communities demonstrate sustainable practices in resource use and management, the perceptions indicate that the global impacts of climate change can be felt at the local level and affect the provision of natural resources. High perceptions are shaped by age, length of residence, and degree of dependence on the goods and services of the coastal ecosystem, indicating that people who are older, live longer in one of the communities, and consequently have greater dependence on the resources, are the ones with the highest perceptions. These variables, which explain the high perceptions found, reinforce that the construction of these perceptions is based on traditional knowledge, which is the result of an intense relationship with nature and its resources, safeguarding the history, culture and identity of local peoples.
Acesso aberto (Open Access)
Percepção ambiental sobre mudanças climáticas em comunidades costeiras na Amazônia, ameaças ao bem-estar e sobrevivência local: um estudo na Reserva Extrativista Marinha de Soure, Pará, Brasil
(Universidade Federal do Pará, 2023-08-04) ASSIS, Davison Marcio Silva de; MARTINS, Ana Cláudia Caldeira Tavares; http://lattes.cnpq.br/6547250062275801; https://orcid.org/0000-0003-4972-036X; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; https://orcid.org/0000-0001-9751-9885
Climate change, a global phenomenon with serious consequences for ecosystems, is affecting nature and the human populations that live in it and depend on its goods and services on a large scale, and coastal areas, being more exposed to the effects of this phenomenon, have been affected to an unprecedented extent. The reduction in the services provided by these areas has a direct impact on the way of life of the human populations living there, who have established a relationship of dependence on nature and its resources. The Marine Extractive Reserve of Soure, located on the coast of the Eastern Amazon, is characterized by the fact that it encompasses an area composed of three traditional communities whose way of life is based on a sustainable and subsistence relationship with nature. Despite its location in a protected area and its sustainable practices, the effects of climate change may pose serious threats. In this context, this work, which is characterized as interdisciplinary research, raised perceptions about climate change and sought to understand, in the light of these perceptions, how residents associate changes in the flow of goods and services from coastal ecosystems with this phenomenon. The raised perceptions reveal the high level of agreement for the occurrence of climate change. Although the communities demonstrate sustainable practices in resource use and management, the perceptions indicate that the global impacts of climate change can be felt at the local level and affect the provision of natural resources. High perceptions are shaped by age, length of residence, and degree of dependence on the goods and services of the coastal ecosystem, indicating that people who are older, live longer in one of the communities, and consequently have greater dependence on the resources, are the ones with the highest perceptions. These variables, which explain the high perceptions found, reinforce that the construction of these perceptions is based on traditional knowledge, which is the result of an intense relationship with nature and its resources, safeguarding the history, culture and identity of local peoples.