Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/41448
Title: Landscape Fragmentation around Ferruginous Caves of the Iron Quadrangle, Minas Gerais, Brazil
Other Titles: Fragmentación del paisaje alrededor de las cuevas ferruginosas del Cuadrilátero Ferrífero de Minas Gerais, Brasil
A fragmentação da paisagem em torno das cavernas ferruginosas do Quadrilátero Ferrífero de Minas Gerais, Brasil
Keywords: Ferruginous caves
Iron geosystems
Iron Quadrangle
Landscape metrics
Speleological heritage
Caverna ferruginosa
Geossistemas ferruginosos
Quadrilátero Ferrífero
Métricas de paisagem
Patrimônio espeleológico
Issue Date: 2019
Publisher: Facultad de Ciencias Humanas de la Universidad Nacional de Colombia
Citation: GOMES, M. et al. Landscape Fragmentation around Ferruginous Caves of the Iron Quadrangle, Minas Gerais, Brazil. Cuadernos de Geografía: Revista Colombiana de Geografía, Bogotá, v. 28, n. 1, p. 89-101, ene./jun. 2019.
Abstract: The aim of this article is to analyse the landscape fragmentation around ferruginous caves in the Iron Quadrangle (Minas Gerais, Brazil) and the conditions of environmental stability of the caves inserted in vegetal remnants under edge effects caused by anthropic activities. The methodology applied involved the implementation of three different landscape metrics to stablish the total area of patches, the area of the patches under edge effects (core area), and the distance from the nearest neighbour. The measurements were calculated considering classes of vegetal coverage (herbaceous, shrub, and arboreal vegetation) and then processed and combined by using map algebra to obtain the fragmentation degree, which was classified into three classes: high, moderate, and low. Results reveal that 62.88% of the vegetation coverage of the study area presents a low degree of fragmentation. Among the caves under edge effects, 15% obtained negative indices of environmental stability. Although most of the analysed caves are located in areas with a low degree of fragmentation, the proximity of anthropized areas and the risk they represent for the speleological heritage reinforce the need to create strategies focused on the conservation of the caves.
URI: http://repositorio.ufla.br/jspui/handle/1/41448
Appears in Collections:DBI - Artigos publicados em periódicos



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