TCC - Engenharia Florestal (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/436
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4 resultados
Resultados da Pesquisa
Item Análise temporal do uso e ocupação do solo da Bacia do Médio Jaguaribe - CE(2018) Castro, José Artur Borges de; Duarte, Simone Mirtes Araújo; http://lattes.cnpq.br/5876968040869585The hydrographic region of the Middle Jaguaribe is an area of vital importance to the state of Ceará, benefiting the whole region around it with fish farming, irrigation, water transposition and, as a consequence of the dam, regulates the flow of the Jaguaribe River. Its construction began in 1995 and concluded in 2003. In recent years, there has been a reduction in precipitation, which means that reservoirs are not recharged, reducing local economic dynamics. Following this reasoning, the objective of this work is to make a temporal analysis of the use and occupation of the soil of the Jaguaribe mid basin during a period of nine years, between 2006 and 2015, using LANDSAT 5 ETM satellite images in the year 2006 and LANDSAT 8 OLI for 2015, provided by the United States Geological Survey (USGS), the images used in the process were recorded during the dry period of the region, and using GIS applications it is possible to quantify the exposed soil, vegetation, agricultural activities and urban areas , and estimating morphometric variables. The results show a visible reduction of vegetation and soil growth, caused by the reduction of the levels of the small reservoirs and by anthropic activities, and the morphometric results indicate that the basin is not conducive to flooding.Item Análise do uso e ocupação do solo e seus impactos no Município de Alagoinha - PE(2018) Silva, Jéssica Bruna Alves da; Duarte, Simone Mirtes Araújo; http://lattes.cnpq.br/5876968040869585; http://lattes.cnpq.br/2314483831159897Geotechmoçogies and remote sensing help in the evaluation and monitoring of natural resources, in an effective and economical way, allowing the identification of the possible causes and consequences of the environment in the area interest. In this way, the present work aimed to evaluate the dynamicsof land use and occupation and its impacts in the city of Alagoinha - PE using geotechnology. All the geoprocessing was carried out in the free software SPRING 5.5.3, in which the numerical model of the terrain was performed using SRTM data, which enabled the characterization of the relief through the hypsometric and slope analysis.Trough the satelite images Landsat 7 ETM + and Landsat 8 OLI of the years 2002 and 2017, the Adjusted Multispectral Composition, the calculation of Normalized Difference Vegetation Index - NDVI, the classification of the use and occupation of the soil of the municipality and its anthropism, as well as the social imapcts of such use and occupation. It was observed that the largest area of the municipality (27,71%) is at altitude between 710-760m and the slope varies between 0 - 5° in 61.78% of the area, characterizing the relief with bein flat / smooth wavy. Regarding the results of the digital image processing, it was identified that all the established classes presented variations, and the classes that more attracted attention were the class of Dense Vegetation, that presented an increase of 16,04 km² (7.74%) of the area, and the Soil Exposed classe, which presented a decrease of 8.06 km² (3.87%). In the analysis of the social impacts, it was possible to establish a relationship with the assistance programs, in the Federal, State and Municipal spheres, with the increase of the vegetal cover, water mirrors and the reduction of the soil exposure, also noting that it was not environmental education and recognition of the importance of natural resources in the quality of life of the population.Item Suscetibilidade à erosão laminar (PNE) em Machados - PE(2018) Falcão, Cassiano José Lages Marinho; Duarte, Simone Mirtes Araújo; http://lattes.cnpq.br/5876968040869585; http://lattes.cnpq.br/5445952042358738This paper aimed to estimate laminar erosion susceptibility in Machados County – PE, achieved using the adapted Universal Soil Loss Equation (USLE) and SIG for computing and analyzing data. The methodology used can be split in five steps: collection and integration of rainfall data on a thirty-year interval, local topography analysis using geoprocessing tools, laboratory analysis and posterior geolocation of local soils physical parameters and the final computation through the adapted USLE formulae. The achieved results allowed surmising that the County’s soil loss susceptibility is low, but significant, with a mean value reaching 368t/ha.year. The biggest influential factor was the topographic factor, averaging (…). Soil erodibility was considerably high, with a mean value of (…) and rain Erosivity, found to be (…) had the lowest impact on soil erosion. It is also possible to perceive a considerable spatial variation from the results, despite the reduced area of study, endorsing geotecnology use on its determination.Item Suscetibilidade à erosão laminar (PNE) em Machados - PE(2018) Falcão, Cassiano José Lages Marinho; Duarte, Simone Mirtes Araújo; http://lattes.cnpq.br/5876968040869585; http://lattes.cnpq.br/5445952042358738This paper aimed to estimate laminar erosion susceptibility in Machados County – PE, achieved using the adapted Universal Soil Loss Equation (USLE) and SIG for computing and analyzing data. The methodology used can be split in five steps: collection and integration of rainfall data on a thirty-year interval, local topography analysis using geoprocessing tools, laboratory analysis and posterior geolocation of local soils physical parameters and the final computation through the adapted USLE formulae. The achieved results allowed surmising that the County’s soil loss susceptibility is low, but significant, with a mean value reaching 368t/ha.year. The biggest influential factor was the topographic factor, averaging (…). Soil erodibility was considerably high, with a mean value of (…) and rain Erosivity, found to be (…) had the lowest impact on soil erosion. It is also possible to perceive a considerable spatial variation from the results, despite the reduced area of study, endorsing geotecnology use on its determination.