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Este artigo apresenta a construcao de um Sistema de Informacao Geografica (SIG), disponivel na web , como ferramenta para divulgar informacoes atualizadas sobre o agronegocio do babacu no estado do Piaui, Brasil. O SIG GeoBabacu foi desenvolvido utilizando a plataforma GeoServer e foi composto de duas partes:1) site web que mostra informacoes gerais sobre o babacu e sobre os municipios produtores; 2) banco de dados geograficos com a disponibilizacao dos mapas da distribuicao espacial do babacu nos municipios pesquisados. Na construcao do Banco de Dados Geograficos foram utilizados o sistema gerenciador de banco de dados PostgreSQL 9.3 + PostGIS 2.1., em conjunto com o Sistema de informacao Geografica QGIS. Para o mapeamento da distribuicao espacial do babacu foram selecionados os 25 municipios que apresentaram producao media minima de cinco toneladas de amendoas entre os anos de 2006 e 2013. Foram utilizadas imagens RapidEye, ortorretificadas com resolucao espacial de 5 metros, composicao R5G4B3 para a geracao dos mapas. As imagens foram segmentadas e classificadas no software eCognition 8.7 e reclassificadas manualmente no modulo ArcMap do ArcGis 10.2.2, com o apoio de imagens do Google Earth Pro 7.1.5.1557. O levantamento dos dados de localizacao dos babacuais foi realizado utilizando equipamentos GPS de navegacao com precisao de 10 metros. O SIG GeoBabacu esta disponivel no endereco siggeobabacu.ifpi.edu.br. Palavras-chave : mapeamento web, geoprocessamento, banco de dados geograficos, sensoriamento remoto. Abstract This article presents the construction of a Geographic Information System (GIS), available on the web, as a tool to disseminate up - to - date information on babacu agribusiness in the state of Piaui, Brazil. The GeoBabacu SIG was developed using the GeoServer platform and was composed of two parts: 1) web site that shows general information about the babassu and about the producing municipalities; 2) geographics database with the map of spatial distribution of babassu in the cities surveyed. In the construction of the databases geographic was used the system database manager PostgreSQL 9.3 + PostGIS 2.1, in conjunction with the QGIS Geographic Information System. For the mapping of the spatial distribution of babassu, the 25 municipalities that had a minimum average production of five tons of almonds between 2006 and 2013 were selected. To the mapping were used RapidEye images, orthorectified, with spatial resolution of 5 meters and composition R5G4B3. The image segmentation and classification processes were performed with eCognition software 8.7 and after were reclassified manually in ArcGis module 10.2.2, supported by images from Google Earth Pro 7.1.5.1557. The survey of the location data of the babassu area was performed with equipment GPS navigation with accuracy of 10 meters. The GeoBabacu SIG is available in the address siggeobabacu.ifpi.edu.br. Keywords : webmapping, geoprocessing, geographic database, remote sensing.

caderno de geografia

Sistema de informação geográfica para o agronegócio do babaçu no estado do Piauí - SIG GeoBabaçu / Geographic Information System to the agribusiness of the babaçu in the state of Piauí – SIG GeoBabaçu