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| Registros recuperados: 10 | |
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| BERGIER, I.; SILVA, A. P. S. e; ABREU, U. G. P. de; OLIVEIRA, L. O. F. de; TOMAZI, M.; DIAS, F. R. T.; URBANETZ, C.; NOGUEIRA, E.; SILVA, J. C. B.. |
| Bovine livestock is a major anthropogenic greenhouse gas source via entericmethane. Brazilian bovine livestock is also responsible for emissions from land-use changes. In contrast, enteric emissions from extensive cattle systems in wetlands might have been overestimated.We provide scientific evidences that the human footprint of bovine products delivered by the Pantanal can be much lower. To assess this, a historical cloud-free imagery of the Landsat-5, spanning 26 years, were processed for mapping spatiotemporal landscapes in a Pantanal farm under cattle intensification studies. Eight landscape categories were identified according to spatiotemporal dynamics of interannual floods. The spatiotemporal map allowed in the field the adoption of stratified... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Beef; Cattle; Floods; Landscapes; Ecology. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1102561 |
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| MIRANAD, R. de Q.; GALVÍNCIO, J. D.; MORAIS, Y. C. B.; MOURA, M. S. B. de; JONES, C. A.; SRINIVASAN, R.. |
| Reliable information on vegetation cover and its dynamics over time is essential for managing life, resources, and supporting policies. Although many related initiatives have been undertaken in Brazil since the 1980s, knowledge about its dry forests is still limited. In this study, we address the drivers of deforestation and their threat to the Brazilian dry forest called Caatinga. We evaluated the land cover dynamics and landscape metrics in the watershed of the Pontal River, as it has become one of the most socially and environmentally important areas in Brazil. The overall process consists of a systematic sampling grid of hydrological samples, where Landsat images (1975 to 2013) combined with the FRAGSTATS package were used to evaluate landscape metrics... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Bacia do rio Pontal; Fragmentação; Semiárido; Sensoriamento Remoto; Caatinga; Floresta; Desmatamento; Cobertura Vegetal; Vegetação; Landscapes; Remote sensing. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100155 |
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| SOUSA, J. E. S. de; NASCIMENTO, A. F. do; CORRÊA, M. M.; SOUZA JÚNIOR, V. S. de. |
| Semi-arid environments occupy a large part of the terrestrial territory, are characterized by quite characteristic climatic conditions, with low rainfall and high temperatures. The soils existing in this landscape are categorically characterized as little weathered, and predominantly rich in bissialitic minerals, showing the climate as a preponderant formation factor, forgetting the importance of the others. From these theories, this study was carried out with the purpose of proving the fundamental influence of the relief and drainage condition on the formation of minerals in the semi-arid environment and consequent evolution of soils. Physical, chemical, mineralogical and petrographic analyzes were carried out, being proved the predominance of processes... |
| Tipo: Resumo em anais de congresso (ALICE) |
Palavras-chave: Kaolinite; Smectite; Hydrolysis; Landscapes; Drainage. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1098932 |
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| LIMA, G. T. N. P. de; BERTOLO, L. S.; SANTOS, R. F. dos; SILVA, J. dos S. V. da. |
| In the last decades, the region of Bonito (Mato Grosso do Sul State - MS) has presented an increase in urban areas, causing impacts on water resources, landscape fragmentation and loss of ecosystem services (ES). Aiming to study the relation chain among land use, water resources and ES, this work determined the influence of the composition from ladscape elements and water quality on the offer of three ES (water quality, erosion control and tourism), also defining the critical points between offer of water services and loss of natural resources for urbanization. For this purpose, the following tasks were accomplished: (i) statistical analysis of Pearson correlation and Principal Components Analysis (PCA) to determine the relations between water quality and... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Serviços ecossistêmicos; Paisagem; Recursos hídricos; Ecosystem services; Landscapes; Water resources. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/967244 |
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| Gheler-Costa,Carla; Verdade,Luciano M.; Almeida,Álvaro F. de. |
| The remaining portion of the Atlantic Forest within the State of Sao Paulo is highly fragmented and most of the remainders are wrapped up in an essentially agricultural mosaic. This study aims at the local surveying of non-volant mammals, including their distribution and relative abundance within the human-altered environments of campus "Luiz de Queiroz", University of Sao Paulo, Piracicaba, São Paulo State, Brazil, an urbanized area bordered by two highways and the Piracicaba River. The landscape of the study area is characterized by a mosaic of small forest fragments surrounded by pastures, agriculture, and planted forests. Small mammals were captured from February to October, 2001, with an effort of 7056 day-traps, sampling the most representative... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammals; Forest; Agricultural mosaic; Landscapes. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600021 |
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| SILVA, J. dos S. V. da; CARVALHO, J. R. P.; SANTOS, R. F. dos; FELGUEIRAS, C. A.. |
| Em zoneamento ambiental delimitam-se unidades territoriais que, para definição de diretrizes, são consideradas homogêneas. No entanto, reconhece-se que há uma variabilidade interna não representada em mapa, particular a cada uma delas, seja na composição, arranjo ou função ambiental. Este estudo tem como objetivo apresentar uma estratégia metodológica para obtenção das zonas a partir da integração de dados ambientais espacializados com informações quantitativas sobre as relações espaciais entre esses dados, de forma a determinar o grau de homogeneidade da área amostra. Foi usada uma base de dados em Sistema de Informações Geográficas, associada a técnicas de análise de agrupamento hierárquico de Ward e análise de correspondência. O estudo de caso foi a... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Análise de correspondência; Análise de agrupamento; Heterogeneidade ambiental; Zoneamento ambiental; Paisagem; Environmental heterogeneity; Environmental zoning; Correspondence analysis; Cluster analysis; Landscapes. |
| Ano: 2007 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1667 |
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| Registros recuperados: 10 | |
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