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Volume 8 - 2020 | https://doi.org/10.3389/fenvs.2020.00052
This article is part of the Research TopicThe Urban Critical ZoneView all 4 articles
The growth of the real estate market is considered one of the leading economic indicators of city development
The pressure for new sites for the construction of buildings and houses causes significant and severe socio-environmental impacts
The municipality of Nova Lima is conurbated with Belo Horizonte
the municipality of Nova Lima has been attracting real estate developers of luxury housing because of its favored location in a valley surrounded by mountain ranges with stunning landscapes
This study aimed to evaluate the emergence and evolution of erosive processes in a region of high real estate pressure in the municipality of Nova Lima
The study site is considered an area of environmental protection
belonging to the “Cardoso” river basin
a tributary of the “das Velhas” river
The images of the area were obtained by an “unmanned aerial vehicle,” with flights performed in 2019
digital surface and elevation models were obtained from these images
Historical series of satellite imagery provided by Google Earth were also used
as well as a survey of secondary data on the use and soil occupation of the region
The intense expansion of the real estate sector in metropolitan areas put pressure on environmental preservation in peri-urban areas
erosion processes and gullies were observed as a result of the construction of luxury residences
Construction residues of the buildings were disposed on the floor of a valley
burying the source of the “Estrangulado” Stream
The appearance of gullies is attributed to a combination of factors such as the removal of vegetation cover
the irregular disposal of construction waste in an environmental protection area
an insufficient drainage system for rainwater
and the lack of water collection and treatment of domestic wastewater
the dimensions of gullies have increased and can cause damage to the buildings there
the soil and sediment washed away by the runoff will affect the volume and quality of water in a watershed that is essential for supplying the metropolitan region of Belo Horizonte
Anthropic influence is typically the main factor behind the formation of gullies, which reflects the history of countries, in the way they use and occupy land (Castillo and Gómez, 2016). Cities are becoming driving forces in environmental trends as most of the global population resides in urban areas due to the increased intensity of activities that is brought to cities (Marcotullio et al., 2008)
Although the physical processes leading to the beginning and development of ravines are similar in urban and rural areas, the development of urban gullies is prone to occur in uncovered soil, closely related to construction activities, road development, and inadequate planning of urban drainage systems (Ferreira et al., 2018)
From an economic standpoint, erosion destroys the urban infrastructure and from an environmental point of view, erosion causes siltation of lakes and canals. In addition to the environmental problems, there are also health issues, since areas excavated by erosion in urban regions tend to become the focus of pathogenic vectors due to the accumulation of waste and sewage (Coulon et al., 2016; Yao, 2018; Ferreira et al., 2018)
this work aimed to evaluate the emergence and evolution of erosive processes in a region with high real estate pressure in the municipality of Nova Lima
These areas represent fragments of the original vegetation of the region
Figure 1. Location of the “Estrangulado” stream basin, Nova Lima, MG, Brazil. Source: Vieira and Almeida, 2018
Figure 2. Study area with the location of the gullies in the “Estrangulado” stream sub-basin, Nova Lima-MG, Brazil. Source: Vieira and Almeida, 2018
On the IOS device were installed the DJI Go and DroneDeploy applications
which served as the interface between the UAV and the ground pilot to execute the flight plans
The preparation of DroneDeploy software flight plans
and the flights were carried out from April 11 to 26
The objectives and parameters for each specific flight were established according to their purposes
Frontal and lateral overlap were 70% for orthophoto capture
recommended by DroneDeploy software for terrain mappings with 70% front and side overlap
Flight 01 was conducted at an altitude of 90 m
covering an area of 22 hectares and capturing 209 images
Flight 02 was performed at an altitude of 35 m, direction −19°, and lasted 13:55 min, covering an area of 2 hectares and capturing 287 images. Finally, Flight 03 was performed at an altitude of 30 m, the direction of −23° and duration of 13:55 min, covering an area of 4 hectares and capturing 235 images (Figure 3)
Flight planes covering gullies in the “Estrangulado Stream” Basin
Source: (F1) Flight 01; (F2) Flight 02; (F3) Flight 03
The area and volume the gully were obtained through orthomosaics generated by the DroneDeploy software
The volumetric calculation is given by Equation 1:
Cut: volume that must be removed to flatten the terrain;
Fill: volume that must be filled to flatten the terrain;
Also, available images of the site were obtained from Google Earth from 2002-2019. The gullies were classified according to type, shape, and size according to the methodologies of Oliveira (1999) and Vieira (2008)
Through satellite images obtained from Google Earth, it was possible to see the real estate occupation at the site, which advanced in the region between 2002 and 2008 (Figures 4A,B)
Location of the study area (perimeter delimited in red) between Belvedere (Belo Horizonte) and Jardim da Torre neighborhoods (Nova Lima)
Source: Google Earth: (A) 2002 and (B) 2019
Study area – gullies between Belvedere and Jardim da Torre neighborhoods
(A) Lateral view of erosive processes and buildings in the Belvedere neighborhood in the background
in Belo Horizonte; (B) another angle of the gully and view of a new residential real estate development in the neighborhood of “Jardim da Torre neighborhood,” Nova Lima
The available satellite images of the area (Google Earth, 2002–2019) already show evidences of previous erosive processes, showing the partial removal of vegetation cover and a gully, named in this study “V2” (Figure 6A)
Figure 6. Evolution of erosive processes in the study area, from 2002 to 2019. (A) Arrow shows the V2 gully already existing in the area in 2002; (B) arrow shows “waste landfill” built in 2008; (C) arrow shows the onset of V1 and its first incision in 2011; (D) arrow shows the V1 and its two incisions in 2019. Source: Google Earth, 2002–2019
Interviewed workers and residents reported that the area was used for the disposal of residues from residential condominiums complexes built in the surrounding area. These reports coincide with the satellite images of the area between 2004 and 2008, where it was possible to verify the change in the slope. It is evidenced by a method of disposing of the waste in layers from the lowest part of the valley, rising and forming a slope of waste (Figure 6B)
When waste disposal in the area ended, a new accelerated erosion process emerged forming a new gully (V1) (Figure 6C). In an attempt to contain the erosive process, a hydraulic ladder was constructed, and the construction waste landfill was covered with grass species. However, gully V1 has widened from 2011 to 2019, forming two bifurcated branches on both sides of the waste landfill (Figure 6D)
The sub-basin area where soil erosion processes are taking place can be estimated at approximately 30 hectares (Figure 7A). Naturally, runoff water flows from the top to the floor of the valley, where the “Estrangulado” stream is located. However, changes in the relief (mainly in the waste landfill) caused the formation of gullies at the site (Figure 7B)
Figure 8. Satellite image history indicating the emergence of the V1-a incision. (A) Arrows show the drainage channel in 2002 (B) arrows show channel reconfigured due to the construction of the waste landfill in 2008. (C) Presence of water traces on the surface of the waste landfill plateau indicating the direction of the water flow in 2009. (D) Intensification of the erosion processes in 2011. Source: Adapted from Google Earth, 2002–2019
it was observed that the waste landfill plateau was partially covered with gravel
and new drainage channels were built in an attempt to divert the rainwater from the top of the slope
which is now occupied by large residential buildings
The plateau currently serves as the patio of an on-site restaurant
The identified works were probably carried out by the owners to prevent flooding in the restaurant’s operating area
it can be inferred that the inadequate construction of the waste landfill
combined with the low vegetation cover on the slopes and of the surrounding terrain
as well as the presence of an inefficient drainage system
contributed significantly to the environmental degradation of one of the streams in a relatively short time between 2004 and 2008
One of the most visible environmental impacts of this degradation is the emergence and accelerated the expansion of the V1 gully
Figure 10. Satellite image history indicating the emergence of incision V1-b. Yellow arrows represent V1-b and green arrows a V1-a. (A) Presence of ravines in the abandoned road in 2013. (B) Recovery of the abandoned road in rehabilitation works of “Jardim da Torre” neighborhood in 2014. (C) Appearance of incision V1-b in 2015. (D) Intensification of the erosive process in 2019. Source: Adapted from Google Earth, 2002–2019
These changes in the original configuration of the area led to the intensification of erosive processes at the site through runoff, creating ravines along the entire road (Figure 10C). By 2019, the V1-b incision was already connected to the V1-a incision at the floor of the valley, forming a forked gully (Figure 10D)
There are no image records of the emergence of V2 gully. In the first available satellite image of Google Earth (2002–2019), their existence is already verified. From its position on the ground, it can be inferred that there was slipping of the topsoil due to reduced vegetation cover previously removed from the site (Figure 11A)
Figure 11. Evolution of Gully V2. (A) Incision of V2 gully in 2002 and (B) V2 in 2018, with V1 on its right side; gully V2 - delimited in blue. Source: Adapted from Google Earth, 2002–2019
In the most recent available image of gully V2 (2018), it is clear that there was no significant evolution in its dimensions. However, native vegetation did not regenerate at the site (Figure 11B)
also selects a fast shutter speed on the drone’s camera to compensate image distortions and aberrations
With the MDE of the area surrounding the gullies, it was found that the land has an elevation difference of 144.5 m, from the lowest point to the highest point of the slope. The head of the V1 gully was used as a takeoff point for the drone. It was possible to verify an average difference in elevation of the gullies of 84.75 m, considering the distance between the head of the gully (surface to be the drone takeoff location) and its lowest point on the slope (Figure 12)
Gullies surface and digital elevation models in the study area
(A) Surface digital model; (B) elevation digital model
Positive values represent points above the reference and negative values represent points below the reference (in meters)
An important point noted was related to the accuracy of orthomatics about absolute precision (global precision). Absolute precision is the degree of fidelity at which a location on a map corresponds to its real position in a fixed coordinate system in the real world. Absolute precision can have errors of up to 1 m in relation to horizontal precision and up to 3 m in relation to vertical precisión (DroneDeploy, 2019)
discontinuities of drainage structures and the terrain were observed
thus indicating errors of absolute precision
it is necessary to use Ground Control Points (CGP)
and preference can be given to more complex GPS systems
such as RTK (Real Time Kinematic) or PPK (Post Processed Kinematic)
which uses the DroneDeploy software’s Visible Atmospherically Resistant Index (VARI) algorithm
it was possible to observe the relationship between exposed soil and vegetation cover within and around the gully
This algorithm compares the proportions of light captured across different bands (red
and blue) to calculate numerical values for each pixel or area of a given map
VARI measures the reflectance of vegetation and soil
making it possible to identify vegetation-covered soil (green) and uncovered soil (exposed) (red)
Gully V1 had a much larger area with exposed soil than the area with some vegetation (Figure 13)
it was noticed that this vegetation is predominantly of herbaceous species
The floor of the valley is more preserved with denser vegetation and also composed of larger species
Vegetation and bare soil in gullies V1 and V2
Red tones = bared soil; green tones = vegetation
(A) The lines delimit the gully V1; (B) the lines delimit the gully V2
V2 gully presented a more substantial area with more vegetation than V1 gully
This fact could indicate that V2 is in the process of stabilization
considering that no ground movement has been identified since 2002 in its area
according to the available satellite images
To quantitatively compare the expansion of gullies V1 and V2 over time
we used the Google Earth area measurement tool
the results were compared with the values of the areas presented by the gullies in the current period
obtained through the DroneDeploy software and the generated orthomosaics
However, between 2002 and 2019, it had a growing expansion, more significantly after 2009. The eroded area in the V1 gully increased 2.37 times from 2009 to 2019. In the V2 gully, the expansion was smaller, that is, less soil/sediment loss. In the 2009–2019 period, the estimated areas were very similar, indicating the stabilization of V2 (Table 1)
Area in hectares of gullies V1 and V2 over the years
The Linear Fit Algorithm (DroneDeploy, 2019) was used to calculate the volume of the gullies
This algorithm interpolates a reference surface above the gully cavity
considering the edge points of the plotted perimeter
It was assumed that the difference between the interpolated reference surface and the gullies surface
represents the following eroded soil estimates
considering that there were no “control points on the ground.”
According to the information of the Nova Lima City Hall, of the 427.7 km2 of the Nova Lima territory, 91% of the available areas (vacant lots) are in the hands of individuals, mainly mining and real estate companies. The concentration of land ownership in Nova Lima, therefore, underscores the process of private production of its space (Menegale, 2002)
These morphological and lithological substrates are hostile to urbanization. Its implementation requires, in most cases, very radical earthmoving interferences that disfigure the features of this landscape and expose the area to erosive risks (Nova Lima, 2006a). According to FEAM (2001)
when related to the fragile rocks that form the subsoil
may present deficiencies caused by inadequate urbanization processes
These inadequacies are the removal of vegetated areas
the adequacy of the road system to the relief
using cuts and embankments that do not respect the geological characteristics of the support rocks
especially on the slopes of the “Curral” ridge
most of its still preserved areas are protected by the Organic Law of the Municipality
The study area is part of the “Vila da Serra” Special Guidelines Area (ADE Vila da Serra)
created by the Master Plan - Municipal Law 2007 of August 28
At the same time, environmental preservation has also become an attraction to the higher income classes, favoring more allotments on site. The population in ADE Vila da Serra increased by six times, and households increased by seven times in the period (2000 – 2014) (Nova Lima, 2014)
At the time of the construction of the waste landfill in the study area, the Organic Law of Nova Lima (1990) already stated that “…the Municipality will maintain a system of urban cleaning, collection, treatment and final disposal of garbage.” Besides, since 2002, the municipality already has an inert landfill (which includes construction waste) under city management (Nova Lima, 2015)
Municipal solid waste management services are a responsibility of the Municipal Department of Urban Works and Services (SEMOS)
The legislation of Minas Gerais State (Law 10.793/1992)
which provides for the protection of springs destined to public water supply
of several projects with polluting potential
including “garbage deposit and landfill restroom.” While Law 13.199/1999
provides for the State Water Resources Policy
which highlights the need to avoid the adverse effects of pollution
1998); Law 11428/2006 and Law 12651/2012 (DOU
The Nova Lima sub-basins are the principal tributaries of the “das Velhas” river, with the “Cardoso” stream being the third-largest long-term average flow (1.78 m3/s) (Nova Lima, 2015)
the importance of protecting the “das Velhas” river basin has been recognized (Decree 18,782/1977)
In turn, the Master Plan of Nova Lima (2007) (Law 2007/2007) highlights that “Adequate drainage of rainwater in the municipal territory will be ensured and all pollution and any unlicensed action or intervention will be prohibited
which implies the reduction of water potential.” It also establishes the guidelines for basic sanitation “
require the control of waste generation and treatment for large projects potentially generating polluting loads
articulated with the control of drainage flows.” Finally
it lists the objectives of the urban drainage system
to elaborate and implement the Municipal Drainage Master Plan
integrating it with the Upper Velhas Stream Basin macro drainage Plan and the Municipal Plan Environmental Sanitation.”
The municipal drainage system depends mostly on surface runoff. Rainwater drainage channels are rare, causing flooding at some points along river banks, and generating erosive processes that lead to siltation of watercourses (Nova Lima, 2006a)
the municipality’s Drainage Master Plan had not yet been approved
Due to the deficiency of the urban rainwater micro drainage system in the region
without proper planning and probably without the knowledge of the city
The study area is on a slope of the monoclinal ridge of “Serra do Curral”. According to the Nova Lima (2006a) Master Plan Diagnosis
the slopes located there are covered by grassy fields
with typically herbaceous and rare stratum shrubs
which can be found more frequently on slopes
These fields without anthropic action occupy different positions in the relief
but predominate in higher elevations on shallow soils (underdeveloped Cambisol or Lithosol) and tend to be rupestrian fields
that there is a breakdown of the gully head at various points and also of the built slope
many plants that start to settle in the area
The regeneration of the vegetation on the site is slow
we notice the predominance of grasses (secondary succession)
These observations corroborate the estimated soil volume/eroded sediment in gullies
In 2014, Vieira and Almeida (2018) studied the same gully (V1) here studied and found an expansion of the gulley border lines at a rate of 0.17 m/month
The authors warned that the advancement of that gully could cause instability and risk to the surrounding buildings
Degradation in the head and sides of the V1 gullies in 2019
(A) Loose soil at the headland and slope of gully V1; (B) view of the headland of gully V1
still showing the valley’s floor protected by native vegetation
it was observed that the fact that the eroded soil volume was very similar in 2009 and 2019 might be a sign of stability
it is important to note that the two gullies (V1 and V2) are very close
being separated only by a column of soil and may collapse in the future
should give a different treatment to the densification of the region
considering the relevance in preserving water resources and fragments of native vegetation
The study of Costa et al. (2018) evaluated geodynamic processes in an area of peri-urban headwaters of a hydrographic basin located in the southeastern region of Brazil
The authors suggest that some basic guidelines reconcile economic development and preservation of ecosystem services provided by the basin
especially in terms of surface and underground supply of good quality water
Among them: restore the areas of natural vegetation at the interfaces
mainly on the ridge surface in areas where a higher surface level was found; advocates mandatory protection of damp areas up to 10 m in width want these areas to serve as natural filters that can contain the sedimentation originating from the higher zones; and create a priority zoning for the restoration of degraded areas
it is essential to highlight the contribution of the use of UAVs to enable studies of erosive process monitoring and the efficiency of specific recovery techniques
This study demonstrated that there is a high degree of image fidelity in a short period
and efficiency in the data collection of the study area
Although it is possible to carry out similar studies using only satellite images available on the Internet for free or even purchased
the use of UAVs allows a more detailed view of the area and an accurate extraction of information
it must be considered the best cost-benefit when comparing the price of UAV with the price of satellite images
UAV is more simple when dealing with image processing software and
greater flexibility in adverse weather conditions
The study by Wang et al. (2016) indicates that the use of remote sensing data from several sources
including satellite and UAVs images simultaneously
results in an adequate assessment of gutter erosion at various spatial scales
The combined approach must be continued to regularly monitor gully erosion to understand the erosion process and its relationship to the environment from a comprehensive perspective
Urban expansion in a troubled region of the municipalities of Belo Horizonte and Nova Lima
has significantly changed the local landscape and has promoted the degradation of permanent environmental protection areas
The work in question exemplifies the existing counterpoint between economic interests and environmental preservation
The clandestine disposal of construction residues on the “Estrangulado” stream and the formation of gullies on site reflect the neglect of municipal and regional ecological-economic zoning
as well as a non-compliance with current environmental legislation
Despite existing environmental and urban planning instruments
and awareness among the resident community
the area continues to suffer from real estate pressure
which could aggravate the environmental and health situation of the site
compromising ecosystem resilience and supply RMBH water
there are technical alternatives to recover the area environmentally and requalify it for the community
This study exemplifies some of the environmental impacts caused by urban expansion in metropolitan areas
All datasets generated for this study are included in the article/supplementary material
VM collaborated in the analysis of the data
VZ collaborated in the data analysis and wrote the article
This work was supported by Federal Center for Technological Education of Minas Gerais
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest
Almeida for sharing his previous studies on the area under study
Os domínios morfoclimáticos na América do Sul
Google Scholar
Urban gully development in Southwestern Nigeria
CrossRef Full Text | Google Scholar
Urban development and informal drainage patterns: gully dynamics in Southwestern Nigeria
CrossRef Full Text | Google Scholar
Atlas of urban Expansion—2016 edition
CrossRef Full Text | Google Scholar
“Unmanned aircraft vehicles,” in Environmental Science and Engineering (Springer Nature Switzerland: Springer
CrossRef Full Text | Google Scholar
Google Scholar
Google Scholar
BRASIL. Lei n° 9.605, de 12 de Fevereiro de 1998. Dispõe sobre as Sanções Penais e Administrativas Derivadas de Condutas e Atividades Lesivas ao Meio Ambiente, e dá Outras Providências. Available online at: http://www.planalto.gov.br/ccivil_03/leis/l9605.htm (accessed March 20
Google Scholar
Plano diretor de recursos hídricos da bacia hidrográfica do Rio das Velhas: resumo executivo dezembro 2004/Luíza de Marillac Moreira Camargos (coord.)
Belo Horizonte: Instituto Mineiro de Gestão das Águas
Google Scholar
Processos Erosivos No Centro-Oeste Brasileiro
Brasília: Universidade de Brasília
Google Scholar
A century of gully erosion research: Urgency
Google Scholar
Análise Morfométrica da Bacia do Alto Rio das Velhas: Comparação de Metodologias e Dados
Google Scholar
Companhia de Pesquisa de Recursos Minerais [CPRM] (2005)
Projeto APA Sul RMBH: Uso e cobertura Da Terra
Google Scholar
Surface runoff and accelerated erosion in a peri-urban wellhead area in southeastern Brazil
CrossRef Full Text | Google Scholar
mercado E cultura: caminhos da expansão metropolitana de BH,” in População
Espaço e Gestão na Metrópole: Novas Configurações
China’s soil and groundwater management challenges: lessons from the UK’s experience and opportunities for China
Plano Diretor de Nova Lima: Uma Abordagem Frente aos Principais Processos de uso e Ocupação do Solo no Contexto do Planejamento Urbano Brasileiro
Google Scholar
Google Scholar
De Oliveira Costa
Morfopedogênese de zona escarpada na alta bacia rio das velhas
mg: análise integrada de dados físicos
DJI (2018). Manual do Usuário do Mavic Air. 1 Ed (1, 2), 58. Available online at: https://dl.djicdn.com/downloads/Mavic%20Air/Mavic%20Air%20User%20Manual%20v1.0.pdf (accessed April 21
Google Scholar
DOU (2012). Lei Federal n° 12.651, de 25 de maio de 2012. Institui o Novo Código Florestal Brasileiro. Brasília: 2012. Available online at: http://www.planalto.gov.br/ccivil_03/_Ato2011-2014/2012/Lei/L12651.htm (accessed March 20
Google Scholar
DroneDeploy (2019). Available online at: https://www.dronedeploy.com/ (accessed April 21
Google Scholar
EUROSTAT (2016)
Google Scholar
Soil Erosion: The Greatest Challenge To Sustainable Soil Management
Google Scholar
Fundação Estadual de Meio Ambiente e Instituto Mineiro de Gestão das Águas
Monitoramento das águas superficiais do Estado de Minas Gerais
Google Scholar
CrossRef Full Text | Google Scholar
Análise sobre a relevância do volume pluviométrico na expansão de uma voçoroca no município de Nova Lima
Google Scholar
FNA (2019). Lei n. 6.766/79, de 19 de Dezembro de 1979. Dispõe Sobre o Parcelamento do solo e dá outras providências. Diário Oficial da República Federativa do Brasil, Poder Legislativo, Brasília, DF, 20 Dez. 1979. Available online at: http://www.planalto.gov.br/ccivil_03/Leis/L6766.htm (accessed April 10
Google Scholar
The success of recent land management efforts to reduce soil erosion in northern France
Google Earth (2002–2019). Google Earth Pro. Nova Lima, Jardim da Torre. Available online at: https://www.google.com.br/earth/download/gep/agree.html (accessed March 20
Google Scholar
Gudino-Elizondo
Measuring ephemeral gully erosion rates and topographical thresholds in an urban watershed using unmanned aerial systems and structure from motion photogrammetric techniques
The effects of biological geotextiles on gully stabilization in São Luís
“Gully erosion and land degradation in Brazil: A case study from São Luís municipality
Maranhão State,” in Ravine Lands: Greening for Livelihood and Environmental Security
Evaluation method of slope instability under rain infiltration
Google Scholar
The origin and control of mega-gullies in Kinshasa (DR Congo)
Instituto Brasileiro de Geografia e Estátistica [IBGE] (2015)
Pesquisa Nacional por Amostra de Domicílios
Google Scholar
Instituto Brasileiro de Geografia e Estátistica [IBGE] (2019)
Google Scholar
Carta de Suscetibilidade a Movimentos Gravitacionais de Massa de Nova Lima-MG
Google Scholar
transformações ambientais e implicações no manancial de abastecimento público da Região Metropolitana de Belo Horizonte-bacia hidrográfica do alto Rio das Velhas
Impactos da expansão urbana na porção norte do município de Nova Lima (MG) sobre o clima
CrossRef Full Text | Google Scholar
“The Impact of Urbanization on Soils,” in Land Use and Soil Resources
Mendonça
“Belo Horizonte: a metrópole segregada,” in População
A Transformação Territorial de um Município de Tradição Mineradora: Estudo de Caso Sobre a Recente Ocupação do Norte de Nova Lima
Google Scholar
Nova Lima (1990). Lei Orgânica do Município de Nova Lima. Available online at: https://sogi8.sogi.com.br/Arquivo/Modulo113.MRID109/Registro31140/documento%201%20-%20lei%20org%C3%A2nica%20-%20nova%20lima.pdf (accessed May 10
Google Scholar
Nova Lima (2004). Diagnóstico do Plano de Revitalização das Águas de Nova Lima. Available online at: https://issuu.com/revistaecologico/docs/plano_de_revitaliza____o_das___guas (accessed May 05
Google Scholar
Nova Lima (2006a). Diagnóstico Preliminar do Plano Diretor do Município de Nova Lima. Available online at: http://www.novalima.mg.gov.br/uploads/plano-diretor/p-01_relatorio-conhecimento-previo_ade-vila-da-serra_final.pdf (accessed May 10
Google Scholar
Nova Lima (2006b). Plano Diretor de Desenvolvimento Municipal de Nova Lima – MG- Diagnóstico. JWConsultores. Available online at: http://www.jwurbana.com.br/v1/Projeto/visualizar/1671 (accessed May 05
Google Scholar
Google Scholar
Nova Lima (2014). Processo de Revisão do Plano Diretor Municipal: Relatório de Conhecimento Prévio de Área Urbana Nova Lima. Available online at: http://www.novalima.mg.gov.br/ (accessed May 05
Google Scholar
Google Scholar
“Processos erosivos e preservação de áreas de risco de erosão por voçorocas,” in Erosão e Conservação dos Solos: Conceitos
Fine-grained sediment in river systems: environmental significance and management issues
Google Scholar
Paisagem em Transformação: O Eixo da MG 030 em Nova Lima/MG
Google Scholar
Evolução do Processo de Ocupação Urbana do Município de Nova Lima: Um Enfoque Sobre a Estrutura Fundiária e a Produção de Loteamentos
Google Scholar
Erosion feature reclamation in urban areas: typical unsuccessful examples from Brazil
CrossRef Full Text | Google Scholar
SIG na análise ambiental: susceptibilidade erosiva da bacia hidrográfica do córrego Mutuca
Google Scholar
Sistema Nacional de Informação sobre Saneamento [SNIS] (2014). Dados sobre Nova Lima. Available online at: http://www.snis.gov.br/ (accessed April 08
Google Scholar
Planejamento metropolitano e grandes projetos urbanos: concepção e descaminhos da política de novas centralidades na RMBH
Tendências temporais e espaciais da qualidade das águas superficiais da sub-bacia do Rio das Velhas
Desenvolvimento e Distribuição de Voçorocas em Manaus (am): Principais Fatores Controladores e Impactos Urbano-Ambientais
Google Scholar
Análise Geoambiental da Expansão Urbana do Vetor Sul de Belo Horizonte: Aspectos Físicos da Bacia do Córrego Estrangulado e os Efeitos da Urbanização Sobre a Paisagem
Belo Horizonte: Novas Edições Academicas
Google Scholar
Gully erosion mapping and monitoring at multiple scales based on multi-source remote sensing data of the Sancha River Catchment
Google Scholar
Evaluation of gully head retreat and fill rates based on high-resolution satellite images in the loess region of China
Determining the influence of catchment area on intensity of gully erosion using high-resolution aerial imagery: A 40-year case study from the Loess Plateau
“Study on the influence of human activities on loess landslide,” in Proceedings of the 2017 3rd International Forum on Energy
Environment Science and Materials (IFEESM 2017)
Urban gully erosion in sub-Saharan Africa: A case study from Uganda
CrossRef Full Text | Google Scholar
Matias VRS and Zago VCP (2020) Urban Expansion and Erosion Processes in an Area of Environmental Protection in Nova Lima
Copyright © 2020 Ercoli, Matias and Zago. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY)
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provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited
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*Correspondence: Valéria Cristina Palmeira Zago, dmFsZXJpYXphZ29AY2VmZXRtZy5icg==; dmFsemFnb21nQGdtYWlsLmNvbQ==
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A Nova Lima apartment designed by Jacobsen Arquitetura celebrates its long
A Nova Lima apartment designed by Jacobsen Arquitetura brings together Brazilian minimalism, natural materials and long, striking vistas of the surrounding Minas Gerais state in a tour de force that becomes a warm, family urban oasis. The apartment interior design
a duplex residence right at the top of a high-rise
was cleverly crafted with a dual aspect – celebrating the urban sprawl on one side
and the region's winding mountain range and abundant nature on the other
The complex's lower level features the main entrance and the home's entertaining and social spaces – centred on a flowing
complete with its own swimming pool and strip glazing that offers panoramic views
airy ceilings adds a connection to the outdoors
while the living areas are protected from heat by wooden brise-soleils
which connects with the dining room and the gourmet area
sculptural staircase connects the two floors but goes beyond being just a circulation tool
Its dramatic timber volume forms an interior centrepiece
highlighted further by the vertical brise-soleil slats that surround and elevate it with their verticality
‘As the light passes through the gaps
constantly moving,' the architects write in their statement on the project
The upper level contains the home's more private areas
A service area links directly to the floor below through its own
dedicated staircase that leads to the kitchen
escapism and design stories from around the world direct to your inbox
Daniel Senise and Laura Vinci dots the apartment – with a large tapestry by Norberto Nicola by the entrance setting the tone
jacobsenarquitetura.com
Ellie Stathaki is the Architecture & Environment Director at Wallpaper*
She trained as an architect at the Aristotle University of Thessaloniki in Greece and studied architectural history at the Bartlett in London
she has been a member of the Wallpaper* team since 2006
visiting buildings across the globe and interviewing leading architects such as Tadao Ando and Rem Koolhaas
Ellie has also taken part in judging panels
such as The Contemporary House (Thames & Hudson
Glenn Sestig Architecture Diary (2020) and House London (2022)
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the designers have built ‘casa galpao’ as an uncomplicated environment so that the family’s identity can be projected by the objects and furniture placed in the interior
along with the routine formed in the new house
all images by jomar bragança
upon entering the site on the sloping terrain, it is possible to observe the whole two floor house by marcos franchini and nattalia bom conselho. the steel structure
the exposed concrete blocks (with sealing inside) and the large glass panels are all visible
reinforces the use of industrialized prefabricated materials
in addition to the use of cement on all floors and countertops in waterproofed concrete
articulates the external space with the building’s social area
there is also an accessible guest suite and a utility room at the rear of the building
a metal walkway on the upper floor divides the double height of the room and connects the two suites
which are placed on opposite ends of the house
providing a panoramic view of the mountainous landscape and the lush vegetation.
architects in charge: marcos franchini and nattalia bom conselho
josé henrique paiva and thomáz marcatto
designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.
edited by: myrto katsikopoulou | designboom
happening now! partnering with antonio citterio, AXOR presents three bathroom concepts that are not merely places of function, but destinations in themselves — sanctuaries of style, context, and personal expression.
Text description provided by the architects
The Concrete House is the result of an effort to create a beautiful and functional residential project from a simple and rational structure of exposed concrete
Located in a condominium surrounded by nature, in the municipality of Nova Lima - MG, the house was designed as a concrete and glass box. Hence the given name.
© Jomar BragançaThe house truly happens on the second floor! The access is via the stairs in the entrance hall, with double-height ceilings, which are introduced by a portico over a large pivot door. Upstairs, the dining, living, and intimate living rooms, the toilet, the kitchen, and the office are integrated and they all face the privileged views of the surrounding nature, complemented by a meticulous landscaping project.
© Jomar BragançaBetween the rooms, is a beautiful central external patio, with a Jabuticaba tree in the middle and niches carved into the wall, where spices are planted to serve the kitchen. On the same floor, a concrete wall separates the intimate part of the house, giving it privacy – there are 3 suites, and the master suite opens onto the beautiful landscape.
it is possible to see the mountains through the entire building
The visual permeability of the glass enclosures
mediated by the set of blinds that provide different gradations of privacy
made it possible to share the privileged view of the house with the street
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The house blends into the surrounding forest
The house is designed around existing trees
The structure is supported on black steel columns
The principal bedroom looks out into the canopy
Living areas blend internal and external spaces
The bridge leading to the bedrooms on the main floor
Tetro architects have created an idiosyncratic treetop house in the forests of Nova Lima
a modern retreat raised up high above the forest floor
Threading its way through a lush rainforest site
the treetop house Casa Açucena is a spectacular example of architecture integrated with nature
The new house was designed by Belo-Horizonte-based practice Tetro
Set on a steeply sloping site in the Nova Lima region in the Southeastern Brazilian state of Minas Gerais
Casa Açucena is woven into the forest.
Casa Açucena is raised up on slender pilotis that march down the hillside
carefully interspersed between existing trees and shrubs
The architects describe the project as ‘a response to a sensitive reading of the terrain.’
weaving between the larger trees on the site
with rooms set at angles to maximise the best views across the forest canopy
a carport and auxiliary structure lead down to secondary accommodation on the main level below
opening out onto a large deck leading across to the main body of the house.
Sliding glass doors lead straight onto an open plan living room
with existing trees weave into the architecture at the edge of the room
A study ‘bridge’ leads across to two bedrooms
while an additional bedroom and study room are located on the lowest level
accessed via an orange steel spiral staircase.
The main deck also incorporates a lozenge-shaped pool
raised high above the treetops and affording a look back on the snaking main body of the house
creating an illusion of a floating structure weaving through the canopy
A green roof helps camouflage the structure from above
while faceted rooflights are located above the major living spaces to add height and bring in sunlight.
The architects describe this juxtaposition as if the house were a ‘white flower in the midst of nature,’ and design decisions like the apparently random scattering of columns add to the organic feel.
‘Our initial understanding was that the architecture should mould itself to the terrain
and not the other way around,’ the architects say
‘the program shapes itself as a harmonious balance of art and nature
occupying the empty spaces between the trees
without removing any or altering the topography.’
Tetro.com.br
Jonathan Bell has written for Wallpaper* magazine since 1999
covering everything from architecture and transport design to books
He is now the magazine’s Transport and Technology Editor
He is also the host of Wallpaper’s first podcast
Residential Casa Açucena rises fifteen meters through stilts penetrated into the earth and resides within the core of a forest in Brazil
Architecture studio Tetro studies the integration with nature
placing their clients within the tradition of Brazilian modern architecture as a starting point before branching out to test the limits of contemporary architecture
and Igor Macedo saw the steep slope not as a challenge to conquer but as a benefit to maximize the gifts of nature that surrounds the earth of the project
A place immersed in lush Atlantic Rainforest nature
the terrain thrives with large leafy trees
and wild animals and features topography with a steep slope
a characteristic of the Nova Lima region in Minas Gerais
This is the place where the trio decided to insert Casa Açucena
within the heart of nature to feed the residents’ thirst for sanctuary and serenity
Trees and branches almost brush against the architecture
The generous windows that carpet the boxy structure reflect the images of the nature outside
blurring the spaces solely with the glass materials
The architects paid attention to the needs of the place first and foremost before bringing it to the table to discuss with the residents
they saw the need to maintain the natural characteristic and asked themselves how they could build a place with such a steep topography while retaining contact with nature
They wondered how they could give its residents the daily experience of looking up and seeing the sky through the treetops
they gravitated towards elevating the home fifteen meters above the ground level to induce the act of looking upwards
from the ground and canopy of trees to the sky
The move testifies to the architectural practice of the trio that carefully studies the premises and conditions presented by the location and the clients before amalgamating them in a way that works well with nature
Images by Jomar Bragança | @jomarbraganca
Padding through the space seems necessary with the abundance of light and breadth
thanks as well to the tall ceiling and windows that mark the home’s construction
heavy curtains block the view if necessary
perhaps to cocoon the residents in the bask of privacy when necessary
but they also add to the elegance and gentleness of the design
residents can slide the windows to clear away any obstruction between them and the forest
a lone bathtub positioned beside the windows hints at immersing the body in a well-deserved
and gazing upon the sway of the trees while listening to the rustling of the foliage tone down the weight of a burden
but inside Casa Açucena: hourly calls and meetings end with a sip of one’s favorite drink while the shoulders lean on the window frames
staring at nature’s offering and soaking its relief. As the house curves around
the scenery changes with the raised patio just outside the first block of the house
The wooden floor pays homage to the raw materials of the Earth
while the maximized space invites gatherings and parties within the humble abode
encouraging anyone to take a dip and rise above the water to see the sheer grace of the greenery
Casa Açucena defies the indulgence in the luxury of life through flashy possessions as it prides itself on the classic feel of visiting one’s vacation home outside a city
Casa Açucena rises fifteen meters from the ground and lives within a forest in Brazil
Its randomly placed black pillars blend in with the trunks
making the house look as if it is floating
a result of the home’s occupation among the trees
The architecture is harmoniously inserted next to the natural vegetation but maintains its presence
and surprise and novelty are values inherent to art
Casa Açucena presents itself as a white flower in the midst of nature
suffusing whoever steps inside with the fragrance of lust for stillness
The terrain of Casa Açucena thrives with large leafy trees
The dining and kitchen space of Casa Açucena
the overlooking patio of Casa Açucena
architect: Tetro | @tetroarquitetura
contributors: Laura Georgia Rodrigues Layoun
photography: Jomar Bragança | @jomarbraganca
From the street, the house seems to be no more than a simple wooden box. The volumetric complexity that constitutes 3 boxes and two platforms can only be glimpsed from the other side of the valley. It is accessible via a bridge: a connecting structure that punctuates the gap between public and private spaces without using any obstruction elements.
© Joana FrançaThe palette of materials enhances the house’s balanced proportions. The concrete slabs expose their bare texture on the ceilings, and the floors are clad in basalt. In turn, the three wooden programmatic boxes insert warmth into the ambiance and present a variety of rich tactile textures.
it is a very calm house: its presence on the street
Some exquisite mid-century Brazilian pieces are used very sparsely
with presence and voids between each piece
letting each designer's trace be fully felt and appreciated
It is a house to be flavored with full attention
Brazil is turning the page toward electric vehicles (EV) with nearly US$8 billion in private sector investments aimed at kicking off the production of new EV models and their components on Brazilian soil in 2024
In addition to new EV models from traditional legacy brands such as Audi (Q8 e-tron)
Renault (Megane E-tech) coming to the Brazilian market in 2023
three automakers will start producing EVs locally in the country in 2024.
While US-based Argentine owned BMC (Bravo Motor Company) is investing US$5bn in local production
Chinese automaker GWM (Great Wall Motors) is injecting some US$2bn toward production
and its Chinese counterpart BYD (Build Your Dreams) is investing approximately US$600mn
the latter two taking place in existing factories
In partnership with US-based Rockwell Automation and Swiss company ABB
Bravo Motor Company is currently building a BRL 25 billion (US$5bn) electric mobility complex in the metropolitan region of Minas Gerais state capital Belo Horizonte
Located in the city of Nova Lima and set to start production in 2024
it will likely be the first Gigafactory in operation in Latin America which entails the production of EVS
their batteries and other components for electric mobility
The facility is expected to start by producing 22,790 EVs per year but capacity is expected to gradually expand until its completion date in 2029
Plans also call to produce 43,750 lithium battery kits per year
The company is focused on urban work vehicles such as taxis
The BeTaxi EV (copyright: Bravo Motor Company)
Great Wall Motors is investing 10bn reais (US$2bn) in vehicle production over the next decade (2022-2032)
being BRL 4bn by 2025 and BRL 6bn by 2032
It will take place at a factory previously owned by Mercedes Benz in the city of Iracemápolis (Sao Paulo state)
the company is planning to produce 100,000 vehicles per year.
A large part of the automaker’s focus will be on producing EVs with new technologies such as facial recognition and artificial intelligence (AI)
The company also boasts ADAS features like automatic braking and other 5G capable semi-autonomous technologies
Among the models to look out for in 2023 are the Haval H6 and Poer pickups
launched in Brazil in Februrary 2023 (courtesy of GWM)
One of the largest EV manufacturers in the world
BYD is investing BRL 3bn (US$600mn) to build three industrial plants located at a former Ford facility in the metropolitan region of Bahia state capital Salvador
upcoming infrastructure includes facilities for vehicle assembly
and the processing of lithium and iron phosphate
Vehicle production is slated to start in the second semester of 2024
which includes chassis for electric buses and trucks as well as the building of EVs and hybrid vehicles
A total of seven EV and hybrid models will be manufactured at the facility which is expected to have a capacity to produce 150,000 vehicles per year
Among the models to look out for are the Yuan Plus
launched in Brazil in June 2023 (courtesy of BYD)
For more insight on vehicle fleet and mobility throughout all of Latin America, come to Mexico City from 25-26 September, the location of the 2023 Fleet LatAm Conference and Fleet LatAm Awards
Article picture credit: Shutterstock 1936750654
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that practices sustainable mining in the countries where we are present
We exist to improve life and transform the future
We extract ore and transport it through a a complete logistics chain
we prioritize the safety of people and the environment
Click on the states below to learn more about our performance in each location
We value individual talent and seek to be more diverse and inclusive
acting with respect and practicing open dialogue
we receive a new opportunity to transform our work environment and the world we live in
Access the page Opportunities for professionals
Our recruitment process has been changing and is in line with the cultural transformation we are going through
Access the job vacancies portal and come be part of this history
Access the page Opportunities for students
Have you ever thought about starting your professional life at a company that invests in people and in a transparent and inclusive work environment
Get to know our Internship and Professional Training Program.
We work with transparency for those who already invest with us or are thinking of becoming part of our investor base
Access the page Information to the market
access documents and the main Vale’s financial reports
We believe that business partners are essential to live our purpose
to improve life and transform the future - together
Learn about our guidelines to be part of our supply chain
Access the page I'm a Supplier (Brazil only)
We seek to work with a chain of suppliers that contribute to a more ethical and fairer society
Learn more about our materials and services.
we are already working with local communities and different sectors of society with the aim of leaving a positive social
Learn more about our commitments to sustainability.
Innovation is one of the main pillars for achieving our purpose
We use technology to redesign our ways of working
We have learned from our history and we are committed to the full reparation of the communities and people impacted by the dam collapse
in accordance with the signed legal agreement
Vale’s places a priority on optimizing its safety procedures
and providing increased transparency with regards to its dams. All information below refers to Brazil
we are bringing together here our main initiatives for the management and monitoring of our dams
Explore this page and learn more about our processes and what has been done
Barragem Maravilhas III: atualizações mar/2025
Barragem Maravilhas III: atualizações fev/2025
Barragem Maravilhas III: atualizações do mês de janeiro
Conheça o Programa Tamanduá: empreendimento da Vale que irá contribuir com a continuidade operacional do Complexo Brucutu Água Limpa
Barragem Maravilhas III: atualizações do mês de dezembro
Barragem da Vale em Nova Lima (MG) tem nível de emergência encerrado
Vale concludes the de-characterization works of the 17th upstream structure
Another Vale dam leaves the emergency level and has stability certified
Barragem Maravilhas III: atualizações do mês de novembro
Hoje é o Seminário Orientativo sobre o Plano de Ação de Emergência para Barragens de Mineração (PAEBM)
Barragem Norte Laranjeiras passará por obras de melhoria
Retomada dos testes sonoros das sirenes de emergência em Itabira
Vale adota ações preventivas de segurança de barragens para o período chuvoso
Avanço: Barragem no Município de Ouro Preto (MG) tem nível de emergência reduzido
Barragem Maravilhas III: atualizações do mês de outubro
Barragem Maravilhas III: atualizações do mês de setembro
Safety: Vale completes removal of another upstream dam and reaches 53% execution of De-Characterization Program
can help generate hydroelectric energy or increase water availability in a given location
dams are part of the ore production process that
What remains of this process is deposited in the dams
which are reservoirs for containing this material
Tailings are the material that is left over after natural moisture processing of ore
What are the possible methods for construction and raising that can be used with dams
There are different types of raising works that can be executed with dams
The main types of raising used by Vale are the downstream construction method (the conventional model) and the upstream construction method
Downstream / conventional dam construction method
We also have two other structures under implementation
* Data according to structures registered under the National Dam Safety Policy (PNSB
The process to eliminate the dams upstream of Vale
studies and care with the particularities of each dam
Our commitment is to eliminate 30 dams in Minas Gerais and Pará
locations and all the steps of this process:
Select one of the dams below for more information
Structure inserted in PAEBM
Global Industry Standard on Tailings Management ("GISTM")
Everything that you need to know about safety and emergency procedures at Vale’s dams
This report is reviewed twice a year in adherence to the requirements of National Mining Agency (ANM in portuguese) Resolution 95/2022 from the Brazilian federal government
which allows us to monitor Stability Condition Declarations (DCEs) and better understand the conditions found in structures
This in turn allows us to provide increased quality in our processes for dam monitoring and safety reviews
Another important change in the monitoring of tailings dams is the inclusion of the Engineer of Record
the standard was to contract engineering companies to perform biannual audits in order to complete reports based on available information and often a field inspection
EORs are now able to regularly monitor the structure of dams
which allows us to provide RISRs that contain more information and that are more assertive in their findings
the EOR accompanies the implementation of recommendations for dams
Vale’s goal is to achieve positive results for all structures that are assessed
we are investing in technology and optimizing factors related to safety at Vale
these audits are used to issue periodic reports that meet the requirements of the Public Prosecutor’s Office
Whenever actions for reinforcement are recommended
monitoring of dam stability is carried out by the same company that performed the audit for a period of a year after work is completed on the dam
Vale has implemented the function of an Engineer of Record (EoR) as an additional step towards strengthening its governance
The Engineer of Record is responsible for performing regular safety inspections and issuing monthly technical reports with regards to the situations found at tailings dams
If any changes in safety conditions are found at a structure
a new Declaration of Stability (DCE) can be issued at any moment
Vale’s dams are monitored 24 hours per day
High-tech instruments are used to provide precise data
including video cameras that use artificial intelligence
radar capable of detecting movements within a millimeter
piezometers (which measure water pressure)
and geophones (sensors used to measure both induced and natural seismic waves)
Structure data is collected in real time and sent to Geotechnical Monitoring Centres (CMG) located in Itabira and Nova Lima in the state of Minas Gerais and Parauapebas in Pará
All information is continuously analyzed by Vale’s technicians
This allows us to verify structure conditions and take preventative and corrective measures quickly and safely
See what the possible emergency levels are and what they represent:
Detailment When an anomaly is detected that results in the maximum score for the state of conservation or for any other situation with a potential compromise in the safety of the structure
Comunication to the Brazilian National Mining Agency (ANM)
ICMM - International Council on Mining and Metals
Environmental agencies and Civil Defense (national
state and city) and the responsible Mining Association & Regulations of the country that the Dam is located
Immediate Actions sign instability and intensify monitoring
Vale’s structures Immedate actions: signaling instability and intensifying monitoring
Detailment When the result of the actions taken in the anomaly referred to in Level 1 is classified as “uncontrolled” or “not extinguished”
requiring new special inspections and interventions
Comunication to the ANM (Brazilian National Mining Agency)
Self-Rescue Zone (ZAS) and Secondary Safety Zone (ZSS)
and the responsible Mining Association & Regulations of the country that the Dam is located
Vale’s structures Immedate actions: from that level
Detailment Situation of imminent or ongoing rupture
the responsible Mining Association & Regulations of the country that the Dam is located
Immediate Actions Caring is extended to people who are in the Secondary Safety Zone (ZSS)
through additional communication and educational measures
Vale’s structures ImmeDayte actions: Care is extended to people who are in the ZSS through additional educational measures
This video details the methods of construction and raising of mining dams
what the possible emergency levels of a dam are
Emergency Action Plan for Mining Dams (PAEBM)
Structures that present a high potential for social
and cultural damages must possess an Emergency Action Plan for Mining Dams (PAEBM)
dams with an average DPA (Associated Potential Damage) are assessed and
if they are found to possess other characteristics included on the list of criteria
and managed in accordance with the the requirements provided for under legislation and protocols from municipalities and the municipal and state Civil Defense
The drills are exercises for preparing and evaluating the protocols and procedures proposed for real emergency situations
agreements and procedures are tested and validated
in addition to clarifying roles and responsibilities and identifying opportunities for improvement
involved in the response to an emergency situation
monitoring centers and hierarchical scale in decision-making
The community's participation in the simulations is fundamental for the correct understanding of how to behave in the event of a real emergency situation
All PAEBM actions are discussed with the competent bodies and with the community itself
Learn more about the Self-Rescue Zones (ZAS) and Secondary Safety Zones (ZSS):
All regions in which the competent authorities do not have sufficient time to intervene in emergency situations
A distance is therefore adopted that corresponds to the arrival of a flood wave which is equal to 30 minutes
This is the region located after the 10 km or 30 minutes that constitutes the ZAS
There is sufficient time available in the ZSS for individuals to proceed with self-rescue and move towards the established meeting points
when a level 2 or 3 emergency is determined to be occurring at a dam
the ZAS is evacuated and those individuals in the ZSS are notified of the event
To ensure that mining is carried out safely
Vale carries out a range of preventative actions
Among these actions are: emergency signaling
Safety innovations for operations and communities
Vale understands the importance of technology and is therefore investing in new dam monitoring technologies
This is how we are able to provide agility and safety with our initiatives
Hover the mouse to learn more about these technologies
Continuous structure monitoring carried out by teams 24 h per day
with all systems centred upon these individuals safely viewing any situation
The integrated geotechnical monitoring centres (CMGs) are located in Nova Lima and Itabira Minas Gerais
The aerial survey of dam structures is a great ally in ensuring safety and a rapid response to emergency situations
Information is gathered through means of helicopter passes performed with an electromagnetic sensor attached to the aircraft
Development of emergency alert systems as part of Emergency Action Plans for Mining Dams – PAEBMs
such as a system for the automatic engagement of dam sirens
Sensors detect movement in structures and are able to engage sirens automatically in case of movement that exceeds established limits
The automatic engagement of sirens is a procedure that provides increased reliability and rapidity in alerting communities of an emergency situation
This process is automatic and does not depend on human intervention
which are equipment using in detecting structure collapse
This equipment is already being used as part of the project for automatic engagement of emergency sirens
in accordance with resolution 13/2019 from the National Mining Agency (ANM)
Operations using remote equipment in structures presenting a critical emergency level
upstream tailings dams such as Sul Superior
in Barão de Cocais and B3/B4 in Nova Lima to be safely decommissioned
removing workers from the field and away from areas of risk
Technologies that improve the gathering of data and safety with regards to decision making involving structures
and expansion of automated instruments that use artificial intelligence
Deep Drive and Helix AR2 are equipment used to measure seismic waves in tailings dams
Deep Drive is able to reach a depth of 100 m and has its own control cabin
Helix AR2 is a robot that aggregates important solutions for dam decommissioning processes
You can also explore the main initiatives that are being implemented with regards to reparation and development in areas impacted by the B1 dam collapse in Brumadinho
Vale is actively seeking out practices that provide a balance with regards to the sustainability of its operations
and targets can all be found at the ESG webpage
Frequently Asked Questions regarding our dams
What is Vale doing to guarantee that its tailings dams are safe
Vale monitors its dams at its Geotechnical Monitoring Centre 24 hours per day
The CMG integrates data from instruments located at more than 100 structures
using various sensors and remote monitoring systems that provide real time transmission
technicians periodically inspect dam structures
We also have a variety of equipment installed at dams that measure different aspects of the structure
Internal and external audits are also performed in which the work of technicians is verified by other individuals both within and outside Vale
There are also sirens that integrate dam alert systems
we also have a redundant operational system in place
which is part of dam management processes and requires Vale to have infrastructure prepared to support systems in cases of a failure
it engages automatically through means of an automated system
We have redundant operational phases in place in electrical
we are focused on developing our Tailings Dam Management System in accordance with rigorous international practices and legal requirements
We have also created channels that allow for open and transparent dialogue with members of society
and government agencies in order to reinforce safety at our operations
I keep hearing about the Emergency Action Plan for Mining Dams (PAEBM)
Create a culture of prevention within the communities in which we operate
identifying a variety of situations and events that may put the integrity of dam structures at risk
PAEBM also establishes resources and strategies for avoiding or minimizing social
and economic impacts in a dam collapse scenario
What are some of the actions taken under PAEBM
Highlighted measures taken to ensure that PAEBM is correctly executed include:
Are Vale’s tailings dams governed by any type of legislation
All of Vale’s dams in Brazil comply with legal requirements provided for under Federal Law 12.334
and resolution 51 from the National Mining Agency
How will I be informed of a real emergency situation involving a dam
you will hear the siren sound intermittently followed by the following message: “Attention
This is a real emergency situation involving a dam collapse
Immediately exit your residences and follow the evacuation route to the meeting point and await further instructions
Dam Elimination
Our commitment is to increase the safety of the communities where we operate and to protect the environment
What we do
Ore is present in solutions that transform people's lives for the better
Our core business is an essential activity for the world
2021 (GLOBE NEWSWIRE) -- Notice is hereby given that an Annual General Meeting of the Company (the "AGM") will be held at the Afya Participações S.A
Zip Code: 34.006-056 on the 23rd day of July
2021 at 11:00 am Brasilia time for the purpose of considering and
passing and approving the following resolutions:
The AGM will also serve as an opportunity for shareholders to discuss Company affairs with management
Shareholders may participate in the AGM virtually by accessing the link set out in the proxy card attached to this Notice
Participation by a shareholder in the AGM in this manner shall be treated as presence in person at the AGM and such shareholder shall be counted in a quorum and entitled to vote in accordance with Article 18.3 of the Articles of Association of the Company
The Board of Directors of the Company (the "Board") has fixed the close of business on 24 June 2021 as the record date (the “Record Date”) for determining the shareholders of the Company entitled to receive notice of the AGM or any adjournment thereof
The holders of record of the Class A common shares and the Class B common shares of the Company as at the close of business on the Record Date are entitled to receive notice of and attend the AGM and any adjournment thereof
The Board recommends that shareholders of the Company vote “FOR” the resolutions at the AGM
Your vote is very important to the Company
sign and return the proxy card attached to this Notice
Registered Office:c/o Maples Corporate Services LimitedPO Box 309
Ugland HouseGrand CaymanKY1-1104Cayman Islands
*A form of proxy card is attached to this Notice
YOUR STANDING PROXY WILL BE VOTED AS INDICATED IN NOTE 2 BELOW
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The trailblazing Afro-Peruvian sound architects, Novalima
have unfurled the second electrifying chapter of their La Danza EP
Novalima enlisted a new generation of artists who masterfully reinterpret their African lineage
Novalima maintains a profound reverence for their African roots
seamlessly weaving traditional rhythms and instruments from Africa
Fresh off their triumphant North American tour
“We’ve been aiming to export Peruvian culture through our music over the past 20 years
and so far we’ve been blessed by playing all over the world and meeting new great artists
who’ve somehow inspired our growth in music and our own artistic evolution
We are proud to be able to still go on the road with our family: our amazing live band
and this year we plan to take over new audiences to spread even more our music to younger crowds through our live concerts
which is an exhilarating dance experience.”
November 23 at Gran Teatro Nacional – Lima
Buy La Danza Part 2 and La Danza Part 1
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Gabriel is a Sao Paulo, Brazil-based reporter covering Latin America's financial and breaking news from the region's largest economy. A graduate of the University of Sao Paulo, joined Reuters while in college as a Commodities & Energy intern and has been with the firm ever since. Previously covered sports - including soccer and Formula One - for Brazilian radios and websites.
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Accenture has launched a hunt for more than 500 home-based IT professionals in Brazil
as the global IT consultant gets ready to cash in on the growing demand for digital transformation services in Latin America’s largest economy
The company is mainly looking for cloud specialists and software developers with deep expertise in Java
one of the important programming languages
What’s more, Accenture will provide them with computing devices, in addition to broadband and electricity allowances. Remote workers will also be eligible for insurance cover, says Accenture, which has solidified its position in Brazil by acquiring two firms in recent weeks
The new recruits will also be trained online with the help of experts working at the company’s offices elsewhere in the world
employees can train themselves through our training and certification programs,” stated Picolo
Software developers have always been in high demand in Brazil, with Brasscom
expecting the country to generate at least 70,000 jobs for programmers by 2024
Narayan Ammachchi is a career journalist with a decade of experience in politics and international business
He works out of his base in the Indian Silicon City of Bangalore
and website in this browser for the next time I comment
The Caribbean’s tourism industry roared back in 2024
welcoming an estimated 34.2 million foreign visitors — a 6.9% increase over pre-pandemic levels and a clear sign of a full recovery
and wider Central and South America are experiencing a surge in interest from international students
These institutions are attractingRead more
Panamanian software vendor Izertis has acquired a 50% stake in regional competitor Coderland
The deal strengthens Izertis’ presence in Central America
Nexus Illuminate Awards
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Essaying the pop culture that matters since 1999
Photo: Vito Mirr / Courtesy of Press Junkie PR
Novalima shapes old Andean traditions into a dance-ready present on fully-formed Ch'usay
While Novalima’s last full-length offering
took us on a late night tour of the back streets of Lima
means “internal voyage” in Quechua – takes us skyward
but light shines through even the densest textures in the forms of soaring vocals and bright electronics
and early popular music mingle with more familiar contemporary elements
making this a trip not only within a specific space but between times
Distant and recent pasts and an immediate present help mark Novalima’s trajectory into a bold future
This is a heritage work in its most dynamic sense – not an attempt to preserve tradition as an untouchable relic
but a reinvention and reinvigoration of it for a current audience
Vintage woodwind samples open the album on its title track
loops that are quickly followed by the operatic vibrato of an echoing voice
Into this retro setting comes the more modern: electronic
midtempo beats and a stream of rapping that steadily picks up momentum
More longtime tradition comes into play in the form of pan flutes
and by the time our singer hits those final
a filled-out version of the best of what Novalima has done for contemporary dance music in the past
with tight cumbia beats backing singer Chaska
beginning with barebones percussion and a voice full of weathered melancholy that starts slow and low
but eventually hits a heartrending zenith over electronic lines and more flutes
screaming heavenward until everything gradually dies down
This is an ending vast in scope and full of clear space
the perfect finish to such a varied musical voyage
Ch’usay may be the culmination of everything Novalima has created thus far
and while it ends up more lyrical than strictly kinetic
a marvelous layering of many eras of Peruvian sounds
US-based Bravo Motor Company will kick off a 25 billion-real (US$4.77bn) investment plan in Brazil this year to produce electric vehicles as well as batteries and components in the southeastern state of Minas Gerais.
The city of Nova Lima in the metropolitan region of state capital Belo Horizonte has signed a memorandum of understanding with the company
It stipulates building a factory in the so-called Colossus Cluster Industrial Park
Construction should begin in 4Q21 and the production of vehicles and components are expected to start in 1Q23
which was initially called the ArqBravo Group which first started in Argentina
will be focused on building vehicles for shared transportation such as buses
vans and taxis. It's strategy is based on four pillars: electric; shared; connected; autonomous Photo: BeTaxi (copyright: Bravo Motor Company)
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Brazil counts 87 mining dams built using the same method
That design is risky if not monitored carefully
and experts have warned that a collapse could happen again in a country where neither the mining industry nor regulators have the situation under control
We looked at each of the 87 upstream dams to estimate if it could threaten populated areas
using geospatial analysis to estimate where the mud could flow if each of the dams failed
more than 1,000 people live in high-risk areas
That means they are downhill from the dam and within eight kilometers — the distance the mud flowed after the Brumadinho collapse
All of those dams were rated by the government at the same risk level
“I wouldn’t buy a home downstream of a tailings dam built in an upstream fashion,” said William F
a former president of the American Society of Civil Engineers
“And I wouldn’t allow my mother to rent or live in a home downstream of a tailings dam built in an upstream fashion.”
Here’s a look at where people may be at risk and which companies own the dams
as well as rough estimates of how many people live in high-risk areas:
a state whose name means “general mines,” has been the hub of Brazil’s mining industry for centuries
it still produces 53 percent of the country’s mining output
Source: New York Times analysis of data from Brazil’s national mining agency
Ownership is as reported by the mining agency
A Brazilian court in the city of Nova Lima
ordered mining company Vale SA to halt operations at the iron ore complex of Dique III in the state
according to a court document seen by Reuters on Thursday
There was no immediate comment from Vale regarding the decision or any information on potential impact on iron ore production
Vale has been targeted by several court verdicts related to mines that use dams similar to the one that burst in the town of Brumadinho in January
(By Marta Nogueira; Editing by Christian Plumb)
Gruyere gold mine joint venture partners Gold Fields and Gold Road Resources reach agreement on a friendly deal to consolidate ownership.
The latest 10 include the proposed copper-nickel mine in Minnesota under a joint venture between Glencore and Teck.
Exploration and mining of the energy metal has for 12 years been banned or largely restricted for environmental reasons in British Columbia, Quebec and Nova Scotia.
Jack Lundin, president and CEO, hailed Filo del Sol as "one of the most significant greenfield discoveries in the last 30 years."
‘the project is the result of an extensive research on design that sough a response to all of these site characteristics,’ notes tetro arquitetura
new elements are implemented as shiny pieces that contrast with the rusticity of the walls and the existing
nature incorporates itself into the house in a poetic way
through the dilution of the boundaries between interior and exterior
‘the starting point for this response was the search for the best view and the desire to intensify the resident’s contact with nature,’ the brazilian architecture studio explains
the concept of the house was developed in such a way that the main volume is implanted right above the level of the stone walls
and the program is distributed throughout three sectors
is elevated six meters relative to the natural level of the land
offering a panoramic view of the mountains
the other two ‘tips’ are supported on a plateau formed by the old stone walls and contain the guest rooms
which maintains contact and has direct access to the upper portion of the site
the home’s form embraces the back portion of the site and its dense vegetation
while a separate volume in the forest encloses the spa
designed to be independent from the residence
it occupies the empty spaces between trees
irregularly-shaped concrete pillars support the building’s main body and enclose some of the bathrooms
the recreation area offers direct access to the cave
which has been transformed into a wine cellar
this level also includes the pool and a generous outdoors area
architect: tetro arquitetura | @tetroarquitetura
principal architect: carlos maia, débora mendes, igor macedo
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We apologize, but this video has failed to load.Try refreshing your browser, ortap here to see other videos from our team.Play VideoArticle contentThe job cuts are part of an effort to simplify the Toronto-based firm’s organization and extend greater decision-making power to operational teams
who declined to speak publicly on internal discussions
Vale Base Metals didn’t provide comment while email and phone calls to its parent weren’t immediately returned
The move marks the first major overhaul since Shaun Usmar joined Vale Base Metals as chief executive in October
The industry veteran came into the role with a goal of improving output and reining in costs at the company’s suite of nickel and copper assets in Canada
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“We cannot spend our way to prosperity,” Usmar told shareholders Tuesday at Vale’s investor event in New York
“We have to be as lean and cost-oriented as possible in order for us to realize the potential.”
Vale Base Metals informed some staff as well as one of the unions representing workers at its Canadian nickel assets of a “managerial reorganization” this month
vice-president of United Steelworkers Local 6500
which represents Vale mine workers in Ontario
“We were informed there’s a managerial reorganization that will involve layoffs at the senior level,” said Hammond
who added that members of the Steelworkers union aren’t affected
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Maria Hinojosa sat down with two of the founding members – Ramon Perez Prieto and Rael Morales
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The house is accessed via these shallow concrete steps
The entrance is reached via a courtyard garden
The master bedroom is cantilevered out over the sunken garden
The lower floor contains an external kitchen and dining space
An oversailing roof and timber screens shade the house from the sun
Viewing the entrance courtyard from within
The Brazilian house in Minas Gerais by Tetro Arquitetura is designed to elevate and simplify the art of one-level living
Tetro Arquitetura’s Laguna House continues the firm’s run of sleek contemporary dwellings that exploit the contours and views of their plot
overlooking a lake with mountains in the distance
the four-bedroom Brazilian house is an exercise in minimal planning
the two-storey house is raised up on a rectangular core and an array of slender pillars
This slightly sunken lower level contains three ensuite guest bedrooms as well as a covered terrace with an outdoor kitchen and dining area
set beneath a large rectangular concrete slab roof
A master bedroom cantilevers out over the garden
utility room and staff accommodation follow the line of the row of bedrooms below
with an external covered walkway providing secondary access
The main entrance is up a series of shallow concrete steps that follow the rise of the land and take you up to a covered porch alongside the courtyard garden
The house is entered directly into the main living space
with a areas for seating and dining alongside the kitchen
Sliding glass doors open onto a south-facing covered balcony
raw concrete is paired with natural stone and vertical hardwood slats for privacy and sun screening
with aluminium framed windows that span floor to ceiling
The oversailing concrete roof also helps reduce solar gain
ensuring that only late afternoon sun reaches the interior spaces
The plan also emphasises simplicity; with the three guest bedrooms on the lower level
everything the owners need for their own day to day life is kept on the principal floor
This reduces the need to use the stairs (one of their requests)
each illustrating a very different approach to shaping a dwelling around the demands of site and client
TETRO.com.br
Novalima includes a wide range of cultural influences in its club-infused Afro-Peruvian music
From
Explore the roots of Afro-Peruvian music with Novalima in this segment of "Latin Roots" from World Cafe
Originating in coastal Peru and featuring contributions from African
Often accompanied by competitive and lively dancing
World Cafe host David Dye talks with Novalima members Grimaldo Del Solar (arranger
programming) and Alfonso Montesinos (bass) about the century-old style of festejo and the different forms it can take through varying rhythms
Festejo has influenced the band's live improvisations
while inspiring Novalima to become more spontaneous and less like a studio project
Listen to Novalima talk about its song "Festejo" and listen to a Spotify playlist here
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Novalima is a collective of four Lima-based producers: Ramón Pérez Prieto
They combine the rich musical traditions of Peru with subtle electronic textures
The result is a fascinating percussive framework that includes acoustic musical instruments along with cutting edge digital sounds
Novalima uses traditional instruments such as the native cajón
The founders of Novalima became friends while in high school in Lima
Rafael and Carlos were well-educated and well-traveled
and while they grew up listening to the popular and folk music of Latin America
Novalima developed with the help of modern technology
The group came was formed parts of the world
they started emailing song ideas to each other
These long-distance experiments resulted in their 2002 debut album
The reception to the album exceeded their wildest expectations
eventually reaching platinum sales status in Peru
and for their next album they invited more Afro-Peruvian musicians to join their recording sessions
an album that was released worldwide in 2006 to remarkable acclaim and put Novalima on the international music map
The founders of Novalima have since returned to Lima and invited some of their favorite Afro-Peruvian musicians to become permanent members of their band: Juan Medrano Cotito
a renowned local drummer and percussionist
The partnership between the original cosmopolitan quartet and members of the Afro-Peruvian community has generated a lot of attention at home
principally because the divide between black and white in Peru has made these types of collaborations rare
Novalima expanded on the formula they developed with their two previous recordings
while taking their fusion in new directions
The album’s title is derived from an Afro-Peruvian expression used to incite musicians
much like shouting “Go for it!” or “Take it!” to a musician in the midst of a great solo
Novalima explores further into the African roots of Afro-Peruvian music
bringing in influences from its Afro-rooted musical cousins such as reggae
They took a more organic approach this time around
and the songs more accurately reflected the live sound of the band
thanks to time spent working together as an actual band rather than a studio project
The 2012 Karimba takes the listener on a trip through the history and travels of Afro-rooted music
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Something about tradition inspires reverence and creativity. Throughout Latin America and parts of the U.S., musicians are exhuming centuries-old musical cultures and infusing them with new life to create songs that sound both familiar and new. Peru's Novalima is doing just that with Afro-Peruvian music
the group has addressed the legacy of slavery in Peru in the form of the traditional lando
deliberate beats are played out on a variety of traditional instruments — most notably the cajon
a big rectangular box that drummers hit before drawing sounds out with their palms and fingers
but can also hit the high-pitched pops of finely tuned bongos or Middle Eastern dumbeks
Novalima also adds electronic sounds to those beats and arrangements
the group's core members crafted their songs by trading files over the Internet
layering their own ideas over traditional rhythms
but over the work of two talented percussionists
the playing zigzags between Afro-Peruvian grooves and more familiar Afro-Cuban rhythms associated with salsa
For this Tiny Desk Concert at the NPR Music offices
The beats are pounded out by hand — not with sticks — and the singing recalls tradition while feeling here and now
and made many of us reluctant to get back to our cubicles
Producer: Felix Contreras; Editor and Videographer: Michael Katzif; Audio Engineer: Kevin Wait; photo by Doriane Raiman/NPR