Engenharia Florestal (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/15
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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2 resultados
Resultados da Pesquisa
Item Estoque de carbono em fragmento florestal na Zona da Mata Sul do estado de Pernambuco(2021-02-25) Mossio, Lucca Silveira Mousinho; Freire, Maria Betânia Galvão dos Santos; Lima, Tarcísio Viana de; http://lattes.cnpq.br/0814281560377954; http://lattes.cnpq.br/2636653493262436; http://lattes.cnpq.br/7141821256778001Native forests have a strong presence in climatic change mitigation on the planet, mainly on carbon sequestration. However, Atlantic Forest suffered a historical fragmentation process linked to exploration, resulting in carbon stock modification of this ecosystem. Thus, the objective of this research was to evaluate the carbon stocks in soil and vegetation of an Atlantic Forest fragment in Pernambuco, Brazil, assigning a comparative relation for edge and forest areas. The study was performed in an area from Usina Trapiche, in Sirinhaém, Pernambuco, in an Atlantic Forest fragment. Were evaluated the carbon stocks, soil organic carbon, soil labile carbon, tree and litter biomass in edge and forest situations, in plots of 250 m2. In each plot, soil samples were collected in three different depths (0-10, 10-20 and 20-40 cm), also collecting 0,25 m2 of litter in each plot and data from a phytosociological study were used to estimate the above-ground plant biomass. For statistical analysis, were performed F test and Tukey test, at 5% probability, after data treatment for normality test and homoscedasticity, on SAS and Sisvar software. There was significant difference in contents of soil organic carbon (S.O.C) and carbon stocks of soil in situation of edge and forest of the fragment, accepting the hypothesis of edge effect caused by fragmentation. However, this effect was not sufficient to have a difference in labile carbon. Was observed a major content and stock in the superficial layer of soil (0-10 cm), which is common in forest environments, mainly for the larger deposition of organic matter in surface. The above-ground biomass and litter biomass presented significant difference between edge and forest, possibly for being a heterogeneous environment and for edge effect existence in the fragment. Even with fragmentation, was observed that soil reservoir keeps stocking more carbon than vegetation reservoir, being the disturbance, up to the limits established by this study, less enough to alter the carbon storage and ecosystems services in a conserved area. So, understand the importance of the knowledge and preservation of native forests for the environment functioning as a carbon tank.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.