2012
DOI: 10.1590/s0370-44672012000100018
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Characterization of the bauxite mining of the Poços de Caldas alkaline massif and its socio-environmental impacts

Abstract: ResumoO uso intensivo dos recursos minerais traz consigo alterações significativas no meio ambiente. O setor minerário é fundamental para a economia mundial, desde que operado em bases tecnicamente coerentes, socialmente justas e ambientalmente corretas. O presente trabalho teve como objetivo caracterizar a mineração de bauxita no planalto de Poços de Caldas -MG, analisando seus respectivos impactos socioambientais. Por meio do panorama apresentado, concluiu-se que a mineração de bauxita realizada no planalto … Show more

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Cited by 20 publications
(20 citation statements)
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“…Although soil horizon inversion is an inherent negative environmental consequence of the bauxite mining process (BARROS et al, 2012), the results obtained in this study were in accordance with those expected since the textural composition of the soil does not vary very much during its exploitation (FERREIRA, 2010). During the environmental recovery process, the first 0.10 or 0.20 m of soil are stripped prior to mining and the soil is used later in the recovery process as the primary source of nutrients, microorganisms, and propagules for regeneration of the exploited area.…”
Section: Resultssupporting
confidence: 90%
See 1 more Smart Citation
“…Although soil horizon inversion is an inherent negative environmental consequence of the bauxite mining process (BARROS et al, 2012), the results obtained in this study were in accordance with those expected since the textural composition of the soil does not vary very much during its exploitation (FERREIRA, 2010). During the environmental recovery process, the first 0.10 or 0.20 m of soil are stripped prior to mining and the soil is used later in the recovery process as the primary source of nutrients, microorganisms, and propagules for regeneration of the exploited area.…”
Section: Resultssupporting
confidence: 90%
“…However, the demand for new technologies that can recover landscapes in these types of phytophysiognomies is high (BARROS et al, 2012). Therefore, the aim of this study was to characterize the physical properties of soil in high-altitude areas affected by bauxite mining operations, and to assess the responses of edaphic factors to restoration techniques used to recover mined areas in the plateau region of Poços de Caldas, Minas Gerais, Brazil.…”
Section: Introductionmentioning
confidence: 99%
“…É também essencial conhecer a autoecologia das espécies e sua relação com as características do ambiente (BENTES-GAMA et al, 2008). Em geral, a perturbação do ambiente induz o surgimento de espécies herbáceas pioneiras, adaptadas a solos marginais e que apresentam produção precoce de sementes em grandes quantidades e com dormência, e, portanto, mais duradouras no banco de propágulos.…”
Section: Nascimento G O Et Al 90unclassified
“…Este material é utilizado para recuperação de áreas mineradas. Uma vez realizada a remoção desta camada de solo, seu conteúdo é estocado em forma de leira no entorno da mina de bauxita e retornado posteriormente durante as atividades de recuperação para viabilizar a regeneração das espécies vegetais (BARROS et al, 2012).…”
Section: Introductionunclassified
“…The current studies have focused the caracterization of environmental conditions that minimize the decline of seed bank viability (PAKEMAN et al, 2012;GOLOS;DIXON, 2014;NASCIMENTO et al, 2016); however, it is necessary to understand the influence of factors intrinsic to the stockpile, such as stockpile height and vegetal composition in different periods, considering that the topsoil can be stored or partially used. (BARROS et al, 2012). Thus, innovative surveys in altitude fields become important tools for the development of strategies of seed bank management (BORGY et al, 2015), since these are highly variable or unpredictable environments, with few studies (BARROS et al, 2013;FERREIRA et al, 2015).…”
Section: Introductionmentioning
confidence: 99%