01. Universidade Federal Rural de Pernambuco - UFRPE (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/1
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5 resultados
Resultados da Pesquisa
Item Diagnóstico geoambiental em áreas costeiras(2020) Silva, Davi Francisco da; Rolim Neto, Fernando Cartaxo; http://lattes.cnpq.br/3213540942171312; http://lattes.cnpq.br/1369118748875327Item Uso de geotecnologias no diagnóstico da mata ciliar do Reservatório Engenheiro Francisco Sabóia, Ibimirim - PE(2023-04-13) Silva, Jaimeson Jardel França da; Duarte, Simone Mirtes Araújo; Vasconcelos, Géssica dos Santos; http://lattes.cnpq.br/0802316667174979; http://lattes.cnpq.br/5876968040869585; http://lattes.cnpq.br/9465682002571649With the development of cities, disorderly occupations have grown exponentially, impacting many vegetation formations, especially riparian forests, even though they are still protected by law for being in Permanent Preservation Areas (PPAs) and presenting great importance in maintaining the quality and stability of water bodies, such as in artificial water reservoirs, which provide society with regulation and water supply, especially in regions with water scarcity, such as the Caatinga. Therefore, the present study aims to diagnose the situation of riparian forests in the PPA strip around the Engineer Francisco Sabóia Reservoir, located in the municipality of Ibimirim, in the state of Pernambuco, seeking to understand and describe the degrees of degradation and conservation, verifying their adequacy in relation to current environmental laws, in a GIS environment. Through documentary research, the absence of licensing was verified, and consequently, the corresponding PPA strip was not defined. Therefore, for the study, a measurement of 100m was considered according to CONAMA Resolution 302/2002. High-resolution images from the CEBERS 4A satellite were used. The data were manipulated in QGIS software to create thematic maps of land use and occupation, through supervised classification of five classes: water, consolidated vegetation, shrub vegetation, agriculture, exposed soil, the NDVI map to quantify the percentage of preserved and degraded riparian forest, and the slope map to understand the altimetric configuration of the region. As results, the land use and occupation map showed the presence of agricultural activity with approximately 22%, as well as approximately 9% of exposed soil, 9% of consolidated vegetation, 25% of shrub vegetation and water 35%, evidencing non-compliance with the legislation. In addition, the NDVI calculation clearly indicated the fragility of vegetation throughout the extension of the PPA, with few fragments of vegetation cover and a lot of area with dead or water-stressed vegetation. It is concluded that this diagnosis has results capable of guiding effective management with planning based on territorial planning and restoration actions of the reservoir's PPAs, providing reflections on the environmental situation of an area with such environmental, economic, and social importance for a severely degraded biome.Item Microplásticos do plâncton na porção norte da APA Costa dos Corais (Tamandaré, Brasil)(2019-12-13) Ferreira, Lucas Xavier; Melo Júnior, Mauro de; http://lattes.cnpq.br/6735233221650148; http://lattes.cnpq.br/7507756194543034Microplastics are particles smaller than 5 mm and can be broadly classified as: filamentous, hard fragments and soft fragments. These particles are among the main current solid contaminants in the marine environment. Such fragments can be released into the environment in different ways, such as degradation itself through biotic or abiotic factors. After being degraded, these particles can be suspended in the water column, thus being able to be ingested by organisms, especially filters at the base of the food chain. The work aims to characterize the plankton microplastics in the waters that bathe the northern portion of the Costa dos Corais Environmental Protection Area, in Tamandaré (PE), aiming at the evaluation of three planktonic compartments in the area (estuarine plume, in the reefs and in the bay ). Samples from 4 campaigns carried out between Sep / 2017 and Mar / 2018 were analyzed, aiming to sample periods with different rainfall regimes, always at low water (to better establish the influence of estuarine plumes). The analyzed microplastics were quantified and classified according to type. To confirm the visually screened microplastics, tests were performed with nitric acid (HNO3). The results show that there is a higher incidence of filamentous microplastics (12 ± 13 mp / m³), compared to other types. The presence of filamentous microplastics reached an average density of 16.08 ± 16.22 mp m³ in the plume, in the dry period, and in the rainy period it had an average of 21.62 ± 20.77 mp m³ in the reefs. . The densities of filamentous microplastics were significantly different between points (plume, bay and reefs). In each period, even with this variation between the points, the data indicate that there was a variation between the points, but if compared to other studies, the variation is not significant, although the bay has shown variation in relation to the other areas. In the present study, the seasonal period did not have a significant influence on the increase in the presence of microplastics in the studied points, even though microplastics are common in estuarine systems in several parts of the world, the fact that there were no seasonal differences in the studied points ( it was expected that during the rains the occurrence of microplastics would be higher) due to the insertion of the Ilhetas and Mamucabas estuaries in a protected region (APA Guadalupe and ReBio de Saltinho).Item Acessando a resiliência na Área de Proteção Ambiental Costa dos Corais (Nordeste do Brasil) para embasar decisões de manejo(2018-08-27) Silva, Thaysa Carla Gomes da; Gomes, Paula Braga; http://lattes.cnpq.br/3289333472399959; http://lattes.cnpq.br/2654152836966384Coral reefs are mainly characterized by having one of Earth's greatest biodiversity, as well as being recognized for the provision of vast goods and services. In Brazil, the reefs are distributed over 3,000km along the coast of the country, representing the only reef system in the South Atlantic and being affected by several threats due to the rapid development of coastal areas and high exploitation of its resources. Recognizing when coral reefs are becoming critically fragile is a major challenge, and therefore resilience measures have been considered a strategy to avoid degradation. For this reason, some studies have been developing methodologies using several factors to indicate and calculate reef resilience in order to develop management and conservation strategies. Therefore, it is relevant to study the resilience of coral reefs in Brazil based on their use in order to improve management and monitoring, promoting the reduction of ecosystem degradation and influencing the choice of priority areas for conservation. Along Costa dos Corais Environmental Protection Area, there are several reefs with different intensities of use, including areas of exclusion of use and areas of high intensity of tourist use. In this way, the site allows to analyze the resilience from the comparative point of view between different reef sectors, under their different situations of use and conservation and relating their degree of resilience with the indicators. For this purpose, the resilience factors were selected based on the literature and all indicators were posed as questions. The questions were applied to APACC’s Council to analyze these parameters in APACC’s 21 reefs, about the following sites: Tamandaré (4 reefs), São José da Coroa Grande (3), Maragogi (4), Japaratinga (3), Porto de Pedras (3) and São Miguel dos Milagres (4). The reefs reached a score of 41 for lowest resilience (São Miguel dos Milagres) up to 71 for highest resilience (Maragogi). According to the ranking, the reefs that obtained high (> 62), medium (between 52 and 60) and low resilience (< 51) were identified. The location with the highest amount of reefs with high resilience is in Japaratinga, while the lowest site is in São Miguel dos Milagres. It is also possible to observe that the reefs that obtained higher scores are located in areas restricted to the use, while those that are present in Visitation Zones obtained lower scores, representing about 66% of the reefs considered with low resilience. With the exception of Piscina de São Miguel dos Milagres, all Marine Life Protection Zones were considered areas of high resilience. Overall, our results show that the management of APA Costa dos Corais has been successful in selecting closed areas, since they have high resilience, with the exception of the only Marine Protection Zone in São Miguel dos Milagres. However, some indicators of resilience can be improved with management actions.Item Dinâmica de uso e ocupação do solo em áreas de preservação permanente do Reservatório do Pirapama, Cabo de Santo Agostinho – PE(2019-07-11) Moraes, Maria Clara Gomes de; Silva, Emanuel Araújo; http://lattes.cnpq.br/2765651276275384; http://lattes.cnpq.br/7061662162165388Action on natural environments occurs in parallel with human evolution on the planet, so the absence of adequate planning associated with the disorderly growth of cities and agricultural activities directly influence the decharacterization and dysfunctionality of PPPs. In view of the above, the objective of this work was to raise the occurrence of conflicts of land use and occupation in the Permanent Preservation Areas of the Pirapama-PE Reservoir between 2003 and 2018, according to the protection parameters established by environmental legislation. To do so, the APPs were delimited using the software Google Earth Pro and through the software QGis 2.14 was generated the shapefile for trimming the study area. Therefore, using images from the Landsat 5 and 8 satellites, TM (Thematic Mapper) and OLI / TIRS (Operational Land Imager / Thermal Infrared Sensor) with resolution of 30 meters, from 2003, 2010 and 2018, it was possible to map 5 classes of use and occupation of the soil in the 1: 35,000 scale in the QGis environment. The supervised classification of the images was done through the SCP plugin, and the accuracy of this mapping was evaluated by the Kappa Index. The evolution of the conflicts of use of the soil was obtained by means of the overlap of the maps generated with the classifications of the images. In possession, it was possible to determine the amount of preserved APPs and of area in disagreement with the legislation. The results showed that anthropic activities impacted almost 4.65 km² of native vegetation, equivalent to 33.3% of the study area. There was a significant reduction in the "forest preserved" class of land use for agriculture, urban area and exposed soil, from 90.4% in 2003 to 81.8% in 2010 and decreased to 66.7% by 2018 (17.6%) of the area, being the main occurrence of land use conflict of PPAs. By the Kappa index, the image ratings of the years 2003 and 2010 obtained the "very good" result, being 0.62 and 0.80, respectively, while the classification of the year 2018 obtained an "excellent" result, corresponding to 0 , 82 by index. Considering the decrease of the time for territorial monitoring, the importance of the study of the dynamics of land use and occupation through remote sensing for the management and inspection units is highlighted. Such studies are essential for making decisions regarding the management and maintenance of these areas in front of legislation and environmental preservation.