O uso do geoprocessamento no estudo ambiental da bacia hidrográfica do rio Faca São Jorge D' Oeste, PR

• Ano de defesa: 2009
• Autor(a) principal: Saquet, Danielli Batistella
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; BR; Geociências; UFSM; Programa de Pós-Graduação em Geomática
• Palavras-chave em Português: Estudo ambiental; Bacia hidrográfica; Geoprocessamento; Rio Faca; Environment; Watershed; Geotechnology; Faca river; CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS
• Link de acesso: http://repositorio.ufsm.br/handle/1/9529

The present research had as a main goal the environmental study of watershed of Faca River, located in the county of São Jorge d Oeste, southeast of Paraná, Brazil. This was done through the geotechnologies where it was possible the development of a joined analysis of the environment as well as a big understanding of the field study which reinforced prognostics of action. The environment evaluations done with the support of the geotechnologies showed an environmental reality of watershed of Faca River, translated by a bunch of conflicts, from social economic information and agriculture potentials. By ne doing this, it was verified that the wooded areas have diminished in the past few years, making room to the agricultural production. This negative variation from 2000 to 2008 was 17.1%. This was represented by a reduction of 103.6 hectares of wooded area in the one total of 1,694.3 hectares of that watershed. It has been noted that the biggest retraction was in the north and southeast of the watershed, located in available areas to the mechanized agriculture. Another analysis allowed concluding that the environmental conditions of the inhabitants from Faca River are pretty good, mainly for the fact that the water has got good quality. The problems which refer to the jump in open sky, as well as the garbage, practically are very rare because most of the inhabitants are conscious about the environment preservation. It has been said that 265.1 hectares farm from Faca River s watershed must be destined by Brazilian federal law a permanent place to preserve and also the reconstitution of the woods on the edge of the rivers, in superior down hills to 45º on top of mountains. However, the wooded areas inside what is called to be preservation area about 50%. A lot of them was occupied by fields and crops. When it comes to the capacity of the ground use, he considered areas as possible yearly cultural use that has got good fertility, fewer rocks and light down hills which makes it possible to work with tractors. It is added 903.3 hectares farm and it corresponds to 53.3% of that watershed. They are located in the superior course of the rivers. Thus, it is considered that geotechnologies showed itself efficient in relation to the diagnostic of the information, this was possible to obtain a huge vision of the environment.