Aplicação de tecnicas de geoprocessamento no estudo de solos e confecção de banco de dados relacional digital no municipio de Palotina - PR

Abstract

Resumo: Com o intuito de separar unidades de mapeamento de solo e confeccionar banco de dados relacional, usando de técnicas de geoprocessamento, o presente estudo utilizou fotografias aéreas de 1994 e imagem orbital, LANDSAT/TM do ano de 1993. Utilizou-se a foto interpretação clássica, análise fisiográfica digital e prospecções à campo na determinação das unidades de solo e levantamento do uso. Os dados referentes ao solo e uso da terra, alimentaram o banco de dados em interface com dados espaciais digitais, via G.I.S. Na área estudada, compreendendo 80 Km2, constatou-se a presença de Cambissolo, Latossolo Roxo, Latossolo Vermelho - Escuro e Podzólico Vermelho - Escuro, em ordem crescente de dominância.

Abstract: In order to separate soil mapping units and make up a relational data bank, using geoprocessing techniques, the present study made use of air photographs form 1994 and orbit image, LANDSAT/TM from 1993. Classical photointerpretation, digital physiographic analysis and searching for a layer in the determination of the soil units and use survey were used. The data refering to the soil and ground usage supplied the data bank in interface with spatial digital data, by G.I.S. In the studied area, comprehending 80km2, the presece of Camsoil, Purple Latosol, Red Latosol Dark and Red Podzolic Dark, in dominant increasing order. In the separation of the soil mapping units, the classical interpretation, the digital physiographic analysis, and the camp analysis were used. In the digital physiographic analysis the used technique was the I.H.S. transformation orbit image, air photograph and numeric model of the land) associeted to the multivaried analysis( having as variation the drained net system , the grey level of the orbit image and the projection of the soil). As a result were obtained theme maps of the types of soil, ground usage and data bank relational. Concluding that the physiographic analysis throgh multivaried analysis and I.H.S. transformation, give subsidies for the election of physiographic units to soil studies and that their combination permit a distinction of the mapping units, when complemented with camp work and laboratory. The use of Geoprocessing techniques was confirmed as na essential too in the survey of the ground usage to make a relational data bank.

Disponível em formato digital.