SENSORIAMENTO REMOTO E SIG APLICADOS À AVALIAÇÃO DA FRAGILIDADE AMBIENTAL DE BACIA HIDROGRÁFICA ///\\\ REMOTE SENSING AND GIS APPLIED TO ASSESSMENT OF ENVIRONMENTAL FRAGILITY IN THE RIVER BASIN
Abstract
O objetivo deste trabalho é avaliar a fragilidade ambiental da bacia hidrográfica do Alto Rio Coxim (BAC), usando lógica fuzzy implementado em um Sistema de Informação Geográfica para propor um modelo de ordenamento físico-territorial. Os dados espaciais utilizados foram organizados em um banco de dados geográfico implementado em um Sistema de Informações Geográficas (SIG). A geração do modelo de ordenamento físico-territorial foi realizada considerando o mapeamento da fragilidade ambiental e legislação da ambiental. Os resultados indicaram uma relação significativa entre as formas de relevo e seus usos: agricultura mecanizada na Chapada do São Gabriel e desenvolvimento da pecuária nas colinas Planalto Taquari. As diretrizes estabelecidas pelo tipo de proposta de uso da terra foram: áreas prioritárias para preservação, área prioritária para a recuperação e áreas de uso sustentável.Palavras chave: Lógica fuzzy; Fragilidade ambiental; Zoneamento ambiental; Ordenamento físico-territorial.
ABSTRACT
The Upper Coxim River Basin (UCB) has an area of approximately 1375 km² located in the municipalities of São Gabriel do Oeste and Camapuã in the state of Mato Grosso do Sul, Brazil. The aim of this work was to evaluate the environmental fragility of the UCB using fuzzy logic implemented at a Geographic Information System to propose a model of physical-territorial management. Spatial data used were arranged in a database implemented in a Geographic Information System (GIS). The generation of the physical-territorial management model was carried out considering preparation of UCB relief mapping, potential natural erosion, land-use and land-cover, environmental fragility and, environmental legislation. Results indicated a significant relationship between landforms and their uses: mechanized agriculture in the Chapada of the São Gabriel and livestock development on the Plateau Taquari hills. The guidelines set out by the type of land use proposals were: Priority areas for permanent preservation, priority area for rehabilitation and preservation and areas for sustainable use.
Key words: Fuzzy logic; Environmental fragility; Environmental zoning; Physical-territorial management.
RÉSUMÉ
Le bassin hydrographique de la haute rivière Coxim (BHC), d’une superficie d’environ 1375 km², est situé dans la partie nord de l’état de Mato Grosso do Sud sur les municipalités de São Gabriel do Oeste-MS et de Camapuã-MS. L’objectif de cette étude était d’évaluer la vulnérabilité de l’environnement du BHC en utilisant la méthode de logique floue dans un système d’information géographique (SIG) afin de proposer un modèle d’aménagement territorial. Les données spatiales utilisées ont été intégrées dans un SIG. La génération du modèle d’aménagement territorial été réalisée en fonction de la cartographie de la fragilité de l’environnement et de la législation environnementale. Les résultats ont montré une relation significative entre les caractéristiques de l’espace (ex : topographie) et leurs usages: agriculture mécanisée dans la Chapada de São Gabriel et développement de l’élevage dans les collines du Plateau du Taquari. Les lignes directrices établies par le type de propositions d’aménagement étaient des secteurs prioritaires pour la conservation, secteur prioritaire pour la réhabilitation et les aires d’utilisation durable.
Mots-clés: Logique floue; Fragilité environnementale, Zonage environnemental, Aménagement territorial.
How to Cite
BACANI, Vitor Matheus et al.
SENSORIAMENTO REMOTO E SIG APLICADOS À AVALIAÇÃO DA FRAGILIDADE AMBIENTAL DE BACIA HIDROGRÁFICA ///\\\ REMOTE SENSING AND GIS APPLIED TO ASSESSMENT OF ENVIRONMENTAL FRAGILITY IN THE RIVER BASIN.
Mercator, Fortaleza, v. 14, n. 2, p. 119 - 135, sep. 2015.
ISSN 1984-2201.
Available at: <http://www.mercator.ufc.br/mercator/article/view/1651>. Date accessed: 14 jan. 2025.
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