A5003769529- Soil erosion and sediment transport
- Soil Management and Crop Yield
- Geography and Environmental Studies
- Geochemistry and Geologic Mapping
- Groundwater and Watershed Analysis
- Water Quality and Pollution Assessment
- Geology and Paleoclimatology Research
- Heavy metals in environment
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Elemental Analysis
- Polar Research and Ecology
- Hydrology and Watershed Management Studies
- Groundwater and Isotope Geochemistry
- Fern and Epiphyte Biology
- Karst Systems and Hydrogeology
- Soil and Land Suitability Analysis
- Ecology and Vegetation Dynamics Studies
- Environmental and biological studies
- Geological and Geophysical Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Mining Techniques and Economics
- Plant Diversity and Evolution
- Land Use and Ecosystem Services
- Agricultural and Food Sciences
- Mine drainage and remediation techniques
Universidade Federal de Ouro Preto
2016-2025
Natura (Brazil)
2013-2014
AgroBio
2014
Union zur Förderung von Oel- und Proteinpflanzen e.V.
2010-2014
Águas de Portugal (Portugal)
2013
Transferring topsoil to severely degraded areas, such as mined is an effective restoration technique. However, from pristine areas a limited resource, making it important seek techniques that optimize its use. Thus, this study assessed the effects of adding small volume (10 L/m 2 or 1 cm layer), seed mix 14 species, and litter (30 ) alone in different combinations rupestrian grassland area by bauxite mining. The substrate was turned prior applying treatments. Vegetation cover, density...
Abstract Aim Mining activities generate countless environmental impacts, including heavy-metal contamination, sorting and increased turbidity. In aquatic ecosystems these impacts can drastically affect the initial links of food chain, such as zooplankton. Methods To evaluate how different mining influence structure functional diversity zooplankton, we investigated geochemical characteristics water sediment in two small impoundments impacted by (kaolin iron extraction). We also explored...
The assessment of sediment contamination is a critical component in understanding the dynamics potentially toxic elements (PTEs) aquatic ecosystems, particularly regions with intensive mining activities. This study focuses on Rio das Velhas basin, located Iron Quadrangle (IQ), one most important provinces world, characterized by extensive anthropogenic pressures and rich geological diversity. A comprehensive evaluation this region was conducted, applying multiple univariate multielement...
Foram realizados estudos fitossociológicos de duas áreas em campos rupestres quartzíticos e ferruginosos (sobre itabirito) MG. Objetivou-se verificar se os litotipos as geoformas influenciam a vegetação dessas comunidades. Os ambas litologias foram estratificados pelas fitofisionomias em: 1. Áreas inclinadas, com limpos 2. Platôs, 3. Porções inferiores dos perfis, sujos. Amostraram-se 60 parcelas (10x10m), 10 cada habitat. Estimou-se cobertura calculou-se frequência, dominância valor...
Vascular species and their respective life-forms coverage were recorded in a Brazilian quartzite itabirite rocky outcrop site at Serra de Ouro Preto, producing the floristic, frequency vegetational spectra. Three habitats both lithologies defined by geomorphology as: 1) Sloped areas near mountain summit, with grasslands; 2) Plateaus middle of slope, 3) Lower and/or concave parts slopes, woody savannas. The followed Raunkiaer's System. We aimed to answer following questions: Do outcrops have...
A regional study on the arsenic concentration in surface waters and stream sediments, with a density of one sample every 13 km2, was carried out for first time Quadrilátero Ferrífero (Brazil). The region divided into 3rd order catchment basins, which 512 areas were sampled. determined sediments after partial digestion aid ICP-OES. values found ranged from 57.70 to 414 µg.L-1, while concentrations 0.63 1691 mg.kg-1, sampling points, 135 (26%) had above limit detection, mg.kg-1. It also that...
Nos últimos quarenta anos, o Parque Estadual do Itacolomi (PEI), localizado na região de Ouro Preto, Minas Gerais, esteve sujeito a várias mudanças em seus padrões uso e ocupação solo. Essas foram registradas quantificadas através sensoriamento remoto técnicas geoprocessamento, com as quais se efetuou mapeamento das transformações no da área durante essas quatro décadas. A fim avaliarem ocupação, definidas seguintes classes vegetacionais: Floresta Estacional Semidecidual, Campos Rupestres...
In Brazil, although, high-altitude shallow lakes comprise large parts of conservation units and are considered highly important environments for biodiversity studies, little is known about the factors that regulate zooplankton community. present study, we sought to identify effect regional (hydroperiod altitude) local (lake area macrophyte cover) on communities in eight (from 1080 m a.s.l. above 1200 a.s.l.) Espinhaço Mountain Range (Brazil). Of 116 species identified, 66 (56%) showed a high...
Despite the importance of grasses in structure and functioning tropical grasslands, there is still a lack efficient economically viable techniques to produce introduce restoration projects. Here, we evaluated sod plug‐plant production planting native grass from Brazilian rupestrian Sporobolus metallicolus , post‐bauxite mining. To sod, used post‐mining substrate its mixture with commercial substrate. Then, sowed 270 seeds S. on 4‐cm layer 144‐cm 2 trays. Eighty days after sowing, subdivided...
Understanding the factors that control uptake rates and allocation of chemical elements among plant organs is a fundamental prerequisite to improve phytostabilization techniques hazardous in contaminated areas. The present study shows evidence different substrate textures (coarse fine laterite) do not significantly change partitioning root shoot dry biomass with few exceptions, affect final average concentration Eremanthus erythropappus, but root:shoot both essential nutrients potentially...
Karst aquifers are large water reservoirs that supply approximately 25% of the world population. They also extremely sensitive to contamination, demanding knowledge on groundwater quality regarding base level conditions for main cations and anions. Knowing Natural Background Level (NBL) values these waters becomes an indispensable measure understand hydrochemical anomalies, either from anthropogenic or geogenic origin. This paper aimed provide a characterization propose NBL 90%...
Abstract Extensive phosphorite deposition is observed in the Neoproterozoic after a prolonged hiatus during most of Mesoproterozoic era. This event thought to represent an important record major palaeoenvironmental, palaeoceanographic and biotic changes that shaped ecosystems, suggesting close relationships between phosphogenesis preservation key Ediacaran biotas. However, high‐grade deposits are relatively uncommon, diminishing opportunity test current phosphate mineralization–deposition...