The Rural Environmental Cadastre (CAR) Geometries: A Methodological Proposal for Analysis and Removal Rural Property Overlaps of Declared Properties in the CAR Database
The Rural Environmental Cadastre (CAR) database, (in Portuguese, Cadastro Ambiental Rural – abbreviated “CAR”), based on self-declaration, has been utilized for various purposes, including scientific studies. However, since the majority of registrations have not been validated by competent environme...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | Brasil |
| Institución: | Universidade Federal de Uberlândia (UFU) |
| Repositorio: | Revista brasileira de cartografia - RBC (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.www.seer.ufu.br:article/66995 |
| Acceso en línea: | https://seer.ufu.br/index.php/revistabrasileiracartografia/article/view/66995 |
| Access Level: | acceso abierto |
| Palabra clave: | SICAR Imóveis Rurais Sobreposição de Polígonos Rural Properties Polygon Overlap |
| Sumario: | The Rural Environmental Cadastre (CAR) database, (in Portuguese, Cadastro Ambiental Rural – abbreviated “CAR”), based on self-declaration, has been utilized for various purposes, including scientific studies. However, since the majority of registrations have not been validated by competent environmental authorities, these data may exhibit inconsistencies, such as geometric overlap among rural properties, thereby hindering their utilization in Geographic Information Systems (GIS), particularly in operations requiring significant topological adjustments. Consequently, this paper presents a methodological proposal to analyze and remove different types of existing overlaps from the raw data of the National Rural Environmental Cadastre System. The starting point is the classification of properties by size, according to the fiscal module of the municipality. After removing canceled properties and duplicated geometries, the removal of overlap between properties of different classes is proposed by adopting the strategy of assigning the overlapped area to only one of the property classes, based on a class hierarchy. The article demonstrates one of the possibilities of area assignment, which prioritizes the maintenance of rural settlement properties, traditional peoples and communities, and smaller properties over larger ones, as a methodological alternative to overlap removal strategies that prioritize the legal security of properties. However, the methodological proposal is adaptable to different contexts and academic purposes. Finally, a brief case study is presented using the methodology for properties declared in the municipality of São José dos Campos, SP. |
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