Land Use And Land Cover Change
Mostrando 13-24 de 44 artigos, teses e dissertações.
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13. Estoque de carbono nos solos da bacia do Rio Araguari-MG: estimativas, modelagem e cenários
The soils can act as a source or carbon sink to the atmosphere, depending on the climate conditions and, especially, the type of use and management adopted. Taking into consideration the stock/sequestration carbon potential, admittedly, attributed to several land uses, as in planted forests (Pinus and Eucaliptus), and no-till areas, as well as the efficiency
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/09/2010
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14. Atividade e diversidade catabólica da biomassa microbiana do solo alterada pelo uso da terra / Effects of soil land use on microbial activity and catabolic diversity
The increasing demand for food creates environmental problems, mainly due to the removal of native vegetation cover for agriculture expansion in Brazil. These changes in land use leads to changes in the soil organic matter dynamics. The vegetation type also affects the soil biota and, therefore, its change causes modifications in the microbial biomass, as sh
Publicado em: 2010
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15. Effects of habitat and landscape characteristics on medium and large mammal species richness and composition in northern Uruguay
The increasing world population and demand for food and other products has accelerated the conversion of natural habitats into agricultural lands, plantations and urban areas. Changes in habitat and landscape characteristics due to land-use change can have a significant effect on species presence, abundance, and distribution. Multi-scale approaches have been
Zoologia (Curitiba). Publicado em: 2010
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16. Algebraic modelling of spatiotemporal objects: understanding change in the Brazilian Amazon / Modelagem algébrica de dados espaço-temporais: entendendo as mudanças na Amazônia
This thesis proposes an algebra to describe how spatiotemporal objects evolve, named geospatial algebra, and a model to apply it. This algebra is composed of a set of operations, axioms and rules defined by the application. Specifically, we handle evolving objects, which are objects that evolve by changing their boundaries and attributes. These objects appea
Publicado em: 2009
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17. Influence of land usage changes in soil properties in an ecosystem of the Amazon south occidental. / Influência da mudança no uso do solo nas propriedades edáficas em ecossistema da Amazônia Sul Ocidental.
The inadequate land management causes soil degradation, which, if reversible, will require time and resources for recovering. Evaluations of changes in soil properties using soil quality indicators contribute to avoid soils more susceptible to decrease their natural productive capacity. The aim of this study was to verify the influence of changes in land usa
Publicado em: 2009
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18. Análise por vetor de mudanças para a avaliação multitemporal e multissensores da cobertura das terras do cerrado / Change vector analysis for multitemporal and multisensor assessment of Cerrado land cover
The main objective was to study the multitemporal expansion of agriculture for 33 years using there different satellites/sensors, by applying Principal Components Analysis techniques in order to generate the components of brightness and greenness for each dataset. The use of these components for the Change Vector Analysis can thus provide information on the
Publicado em: 2009
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19. Análise por vetor de mudanças para a avaliação multitemporal e multissensores da cobertura das terras do cerrado / Change vector analysis for multitemporal and multisensor assessment of Cerrado land cover
The main objective was to study the multitemporal expansion of agriculture for 33 years using there different satellites/sensors, by applying Principal Components Analysis techniques in order to generate the components of brightness and greenness for each dataset. The use of these components for the Change Vector Analysis can thus provide information on the
Publicado em: 2009
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20. Avaliação da susceptibilidade erosiva da bacia do rio Carinhanha (MG/BA) por meio da EUPS : equação universal de perda de solos
Mathematical models are suitable for a quick and economical assessment of erosion susceptibility. The Universal Soil Loss Equation (USLE), one of the most well-known and used models, predicts erosion susceptibility based on rainfall erosivity (R-factor), slope length (L-factor), slope-steepness (S-factor), cover and management (C-factor), and support practic
Publicado em: 2009
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21. Detecção de mudanças no uso e na cobertura do solo em uma série temporal de imagens da Região da Campanha do Rio Grande do Sul
A detecção de mudanças no uso e na cobertura do solo pode ser considerada a função do sensoriamento remoto que agrega uma dimensão temporal à análise das informações contidas nas imagens. Ao confrontá-las duas a duas, para identificar, localizar e qualificar as transformações que ocorreram na cobertura e no uso do solo em determinados espaço e
Publicado em: 2009
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22. Análise multitemporal da cobertura e uso da terra, impactos ambientais e aspectos socioeconômicos do Pólo Agroflorestal Custódio Freire, Rio Branco AC / Multitemporal analysis of land use/land cover, environmental impacts and socioeconomic aspects of the Custodio Freire Agroforestry Pole, Rio Branco - AC
Amazon colonization has been carried out in a disordered way with major environmental impacts and low economic and social returns. Aiming to minimize impacts and growth of periphery of cities, the State of Acre has the Agroforestry Systems (SAF s) as a means of improving rural production and consequently reducing deforestation in the state, seeking equilibri
Publicado em: 2008
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23. Análise metodológica do tratamento de dados sar r99b para discriminar incremento de desflorestamento no sudoeste da amazônia brasileira
- The estimate and mapping of deforestation in Brazilian Amazon has been carried out yarly, with the objective to monitor the forest resources, and as a mean for giving support to governmental control actions. This systematic monitoring is executed by the PRODES Digital project, developed by the Brazilian National Institute for Space Research (INPE), using L
Publicado em: 2008
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24. Land use change and hydrologic behavior analysis in the Preto river and Entre Ribeiros creek basins / Mudanças no uso do solo e comportamento hidrológico nas bacias do rio Preto e ribeirão Entre Ribeiros
The water resources planning and management have the objective to discuss and propose solutions for the watersheds problems looking for the sustainable water use in the urban and rural areas. The relationships between the land use and water resources have been marked by the failure, with environment significant damages, what has transformed in losses for all
Publicado em: 2007