Surface runoff from an area undergoing soil rehabilitation after bauxite mining in southeastern Brazil

Bibliographic Data

ID21649539
AuthorsAline Gonçalves Spletozer (0000-0003-2949-0237, Departamento de Engenharia Florestal Universidade Federal de Viçosa Viçosa Brazil, corresponding author), Lucas Jesus da Silveira (0000-0001-5224-1023, Departamento de Engenharia Florestal Universidade Federal de Viçosa Viçosa Brazil), Aurora Yoshiko Sato (0000-0002-1336-2444, Departamento de Biologia Vegetal Universidade Federal de Viçosa Viçosa Brazil), Alexandre Simões Lorenzon (0000-0001-7733-2730, Departamento de Engenharia Florestal Universidade Federal de Viçosa Viçosa Brazil), José Cola Zanúncio (0000-0003-2026-281X, Departamento de Entomologia/BIOAGRO Universidade Federal de Viçosa Viçosa Brazil), Herly Carlos Teixeira Dias (0000-0002-6893-0920, Departamento de Engenharia Florestal Universidade Federal de Viçosa Viçosa Brazil)
Year2021
Volume32
Issue9
Pages2715-2725
Publication date2021-05-30
Open AccessYes
TypeARTICLE
VenueLand Degradation and Development (JOURNAL)
Journal identifiersISSN: 1085-3278 • E-ISSN: 1099-145X
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ldr.3948
OpenAlexW3149427454
LanguageEN
Citations received1
References cited38

Changing hydrological processes and soil characteristics are of major environmental concern in surface mining. Runoff may be the best factor for determining the efficiency of rehabilitation after this type of mining, and needs more in‐depth studies, but the environmental factors require more attention in order to control that runoff. The objective of this study was to compare the runoff during post‐mining rehabilitation after the extraction of bauxite with that before mining, and to identify the factors that most affect it. Runoff from before the mining operations and during the rehabilitation after those operations were collected in seven plots in the area of a bauxite mine in southeastern Minas Gerais State, Brazil. The physical‐environmental and anthropic factors interfering with the runoff were characterized for both periods, and their results were submitted to principal component analysis to define the parameters, which most demand attention in the mining rehabilitation stage. This study provides the first records of runoff in the field in areas rehabilitated after surface mining in Brazil, where the runoff decreased (1.75‐times or 42.79%) from 0.76 to 0.30% of the precipitation during rehabilitation, compared to the reference area. The total porosity, density, and resistance of the soil, associated with the maintenance of slope, surface roughness, and vegetation cover, are the factors demanding more attention during the rehabilitation stage of surface mining in order to minimize runoff

Bauxite · Coal mining · Geography · Geotechnical engineering · Runoff curve number · Surface mining · Surface runoff · Water resource management · Environmental Science · Medicine · Soil erosion and sediment transport · Soil Management and Crop Yield · Tailings Management and Properties · Ecology · Geology · Rehabilitation

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