Soil Rehabilitation
Mostrando 13-24 de 26 artigos, teses e dissertações.
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13. Biomassa e atividade microbiana como indicadoras da reabilitação de áreas contaminadas por elementos-traço / Microbial biomass and activity as indicators of rehabilitation of areas contaminated by trace elements
A fitorremediação tem sido uma das técnicas adotadas para amenizar a toxicidade dos elementos-traço em áreas contaminadas em decorrência de atividades antrópicas, como a mineração. É importante conhecer os efeitos do uso dessas técnicas sobre a comunidade microbiana do solo, pois seus processos bioquímicos, quando alterados, podem comprometer a c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/01/2010
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14. Substratum quality indicators for revegetated areas monitoring: study directed to the sand mining. / Indicadores da qualidade do substrato para monitoramento de áreas revegetadas: estudo dirigido à mineração de areia.
Mining is an agent of significant changes in soil properties. Successful land rehabilitation depends on restoring those characteristics in natural soils or establishing a suitable substratum for plant growth using available materials such as waste rock or mineral tailings. A process for monitoring the quality of the substratum in mine-affected areas was deve
Publicado em: 2010
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15. O ÍNDICE DE SUSTENTABILIDADE AMBIENTAL DO USO DA ÁGUA (ISA) COMO FERRAMENTA DE CONTRIBUIÇÃO ÀS POLITICAS PÚBLICAS DE DESENVOLVIMENTO E CONSERVAÇÃO NA BACIA DO RIO BACANGA, SÃO LUÍS/ MA. / INDEX FOR ENVIRONMENTAL SUSTAINABILITY OF WATER USE (ISA) AS A TOOL FOR CONTRIBUTION TO THE POLICIES PUBLIC DEVELOPMENT AND CONSERVATION IN BACANGA RIVER BASIN, SÃO LUIS / MA.
A hydrographic basin is a complex environmental system, resulting from the interrelations between the physical-natural and socioeconomic subsystems. Its identity as the unifying of environmental processes and human interference is leading to its adoption as a research unit. It allows from the analysis of the physical-chemical, biological and socioeconomic fa
Publicado em: 2010
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16. Avaliação da qualidade dos substratos minerados em cinco cascalheiras revegetadas no Distrito Federal
The activities that cause high impacts to the soils in the Cerrados are causing a significant increase in loss of productivity with respect to areas of agriculture and loss of resilience in degraded environments by mining. In the Federal District (Distrito Federal), the mining is responsible for degradation of a length exceeding 0.6% of the size of territory
Publicado em: 2009
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17. Estoque e qualidade da matéria orgânica do solo em áreas cultivadas com café sob sistemas agroflorestal e a pleno sol / Soil organic matter stock and quality in agroforestry and full sun coffee systems
Soil organic matter (SOM) restoring is considered a main goal in the enhancement of soil quality. The evaluation of changes in the SOM as a result of soil management practices is fundamental to identify strategies to increase agricultural production, avoiding soil degradation and decreasing the emission of greenhouse gases. In Brazil, no-tillage has been bro
Publicado em: 2009
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18. A aplicação de mecanismos economicos para assegurar a reabilitação dos impactos socioambientais causadas pela mineração de saibro no municipio de Ubatuba/SP / The application of economic mechanics to ensure the rehabilitation of socioenvironmental impacts impacts caused by residual soil ("SAIBRO")
The small scale mining industry is substantially pertinent for the social and economic development of the country. Nonetheless, this activity has been frequently associated with adverse social and environmental impacts. There is a growing concern from the society, which is expressed in the regulatory sectors, that aims to properly rehabilitate mined areas. T
Publicado em: 2008
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19. A aqÃicultura como alternativa de reabilitaÃÃo ambiental para Ãreas mineradas na RegiÃo Metropolitana do Recife â RMR e Goiana/PE
Currently, the Mineral Industry seeks to support the sector in models of social and environmental sustainability, because of conservation policies and increasing social demands. To this end, with complex environmental management systems that enable the creation of appropriate conditions (recovery) for future use (rehabilitation) of the exploited area (degrad
Publicado em: 2008
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20. The forest topsoil seed bank as a degraded area rehabilitation strategy / O uso do banco de sementes florestal contido no topsoil como estrategia de recuperação de areas degradadas
After the nineties, the awareness of the society and enhancement of legal environmental requirements resulted in a greater number of initiatives on degraded lands rehabilitation. The use of topsoil, which contains the forest seed bank and high concentrations of organic matter, has been successfully used, but its application still restrict to flat or low-decl
Publicado em: 2007
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21. BACK ANALYSIS OF FORMATION OF SOFT MINING TAILINGS DEPOSITS / RETROANÁLISE DA FORMAÇÃO DE UM DEPÓSITO DE REJEITOS FINOS DE MINERAÇÃO CONSTRUÍDO PELO MÉTODO SUBAÉREO
The growing mineral exploration generates increasing amounts of mining tailings that need to be properly disposed, requiring larger and larger areas. The conventional way of tailings disposal consists of spigotting tailings in a pulp form within an impoundment. This practice generates low density, compressible and soft deposits. These characteristics, which
Publicado em: 2006
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22. Behavior of B, Zn, Cu, Mn e Pb in contaminated soil under plant cultivation and organic matter addition for metal toxicity amelioration / Comportamento de B, Zn, Cu, Mn e Pb em solo contaminado sob cultivo de plantas e adição de fontes de matéria orgânica como amenizantes do efeito tóxico
Two pot trials were carried out using a heavy metal accidentally contaminated soil. In the first one it was evaluated the plant absorbing, translocating and accumulating power for zinc, copper, manganese, lead and boron by the following vegetal species: Brassica juncea, Raphunus sativus L., Hybiscus cannabinus and Amaranthus crentus, so they could help in th
Publicado em: 2005
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23. Rehabilitation potential of a mine spoil trhough revegetation and microbial management. / Potencial de reabilitação do solo de uma área degradada, através da revegetação e do manejo microbiano.
The increasing degraded soil areas caused by open cast mining activities has brought critical damages to the environment. The mine spoil must be ameliorated with anthropogenic interferences, consisting of revegetating soils, introducing organic matter and microbial diversity, basic conditions for a sustainable soil biological activity. The objective of this
Publicado em: 2004
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24. Dinâmica da regeneração natural de espécies arbóreas e arbustivas no sub-bosque de povoamento de Mimosa scabrella Bentham, em área minerada, em Poços de Caldas-MG / Dynamics of natural regeneration of tree and shrub community in understory of stands of Mimosa scabrella Bentham in mined area, Poços de Caldas, Brazil
In 1982/1983 as part of its mine rehabilitation strategy, ALCOA Alumínio S.A. hydroseeded herbaceous species and planted tree seedlings of Mimosa scabrella Bentham in Retiro-Branco bauxite mining site. In 1997, 19 sample plots of 50m2 were implanted in this area for initial characterization of natural regeneration process. Sampling sufficiency and ideal siz
Publicado em: 2002