Assessment of vegetation recomposition methods in a tropical forest using satellite images

In Brazil, as in the world, the mining sector is expanding steadily. Currently, the sector accounts for 11.5% of Brazil’s GDP, and the country is the world’s fifth-largest producer of mining products. The environmental impacts of mining and other activities that compete for land use need to be evalu...

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Bibliographic Details
Published in:Clean technologies and environmental policy 2021-04, Vol.23 (3), p.797-810
Main Authors: de Araujo, Raissa André, Silva, Juli Lage de Souza, Cugula, Jessica dos Santos, Paschoal, Jonilton Pantoja, Esteves, Victor Paulo Peçanha, Morgado, Cláudia do Rosário Vaz
Format: Article
Language:English
Subjects:
Bauxite
Bayer process
Earth and Environmental Science
Environment
Environmental Economics
Environmental Engineering/Biotechnology
Environmental impact
Environmental policy
Evaluation
Indexes
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Land use
Mining
Mining industry
Nucleation
Original Paper
Regeneration
Satellite imagery
Sustainable Development
Topsoil
Tropical forests
Vegetation
Vegetation index
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Summary:In Brazil, as in the world, the mining sector is expanding steadily. Currently, the sector accounts for 11.5% of Brazil’s GDP, and the country is the world’s fifth-largest producer of mining products. The environmental impacts of mining and other activities that compete for land use need to be evaluated. The objective of this work was to assess vegetation recomposition in an area where bauxite extraction occurred, using analysis of a vegetation index calculated from satellite images. The method was applied at a bauxite mine in Paragominas, Pará, Brazil. The evaluations covered the steps of opening the area, mining operations, and replanting, considering three types of replanting: natural regeneration, traditional planting, and nucleation, for the period between 2013 and 2019, using 2006 as the base situation for the secondary forest. The results showed that the replanting method directly influences the vegetation index according to satellite images. Several factors affected the values obtained, such as operational factors and topsoil used. The natural regeneration method was found to produce the best results. Graphic abstract
ISSN:1618-954X
1618-9558
DOI:10.1007/s10098-020-01916-w