Fragilidade ambiental aplicada em área de manancial no nordeste brasileiro
In Brazil, water demand and availability vary unevenly between regions, with the Northeast greatly affected by the scarcity caused by unfavorable climatic characteristics. Due to the recent water crisis between 2010 and 2017, dozens of cities in the semi-arid region of Rio Grande do Norte faced seri...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/37113 |
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| Resumo: | In Brazil, water demand and availability vary unevenly between regions, with the Northeast greatly affected by the scarcity caused by unfavorable climatic characteristics. Due to the recent water crisis between 2010 and 2017, dozens of cities in the semi-arid region of Rio Grande do Norte faced serious problems and the fragility of the current supply systems in the municipalities was exposed. Studies in supply basins are necessary for territorial planning and the identification of vulnerabilities to degradation processes, aiming to adapt human needs to environmental viability. The objective of this work is to map the Environmental Fragility to the erosion of the Bonfim Lacustrine System, a set of lagoons responsible for supplying water to the Agreste region of the State of Rio Grande do Norte. Environmental Fragility was used in a Geographic Information Systems (GIS) environment with the use of Multicriteria Analysis and Fuzzy Logic, to integrate geoenvironmental attributes (Geology, Pedology, geomorphological compartments, terrain shapes, hypsometry, slope and land use and cover) in order to verify the relationship between erosive processes of morphogenesis and pedogenesis associated with the silting up of the lake region of the source. 44.15 km² (61.15% of the area) had a Medium, Strong and Very Strong degree of Environmental Fragility, indicating the need for attention in relation mainly to land use, given the existence of activities with high degradation power and areas with degrees of considerable natural fragility. |
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