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| Registros recuperados: 37 | |
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| Gomes, João Bosco Vasconcellos; Curcio, Gustavo Ribas; Dedecek, Renato Antonio; Ramos, Michele Ribeiro. |
| Establishing Comperj (petrochemical complex Petrobras and partner companies at Itaboraí city, Rio de Janeiro State, Brazil) involves a great impact on natural environment, while it is an opportunity for actions of environmental compensation. The objectives of this study were to characterize soil chemistry and mineralogy of Comperjarea, based on landscape, particle size distribution and soil morphology, also considering different parent materials, landscape positions (shoulder, backslope and footslope at the hillslope and toeslope at floodplain) and vegetation cover groups. Different landscape positions, comparing toeslope and average hillslope, have differential behavior on several chemical attributes, besides those associated with landscape position... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Secondary forests; Pastures; Rio de Janeiro Caracterização ambiental Florestas secundárias; Pastagens; Rio de Janeiro. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/567 |
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| SÁ, T. D. de A.; ARAUJO, A. C. de; MÖLLER, M. R. F.; HOLSCHER, D.; BASTOS, T. X.. |
| É apresentada uma análise da variação da chuva sob dossel (CSD) durante 55 meses, em duas vegetações secundárias (capoeiras), respectivamente de 2,5 (A) e 10 (B) anos em pousio. O monitoramento foi realizado, em cada vegetação, mediante quinze coletores periodicamente realocados aleatoriamente. Os valores médios de CSD foram de, respectivamente, 69,7±0,99 e 53,4±1,05% da chuva bruta (CB), para as capoeiras A e B, considerando o período completo. No início do estudo, contudo, maior quantidade de chuva alcançava o solo via CSD na capoeira A (78,5±2,85%) em comparação com a capoeira B (35,8±2,19%), enquanto que no final, houve uma inversão de comportamento (57,6±2,12 em A e 67,7±1,51% em B). Maior amplitude de variação em CSD foi observada em classes de baixa... |
| Tipo: Parte de livro |
Palavras-chave: Pará; Brasil; Capoeira; Chuva; Vegetação Secundária; Amazonia; Rain; Secondary forests. |
| Ano: 1999 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/395109 |
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| Fraser, James A.; Lancaster Environment Centre, Lancaster University, Lancaster, UK; james.angus.fraser@gmail.com; Narmah, Woulay; College of Agriculture and Forestry, University of Liberia, Capitol Hill, Monrovia, Liberia; narmahwoulay@yahoo.com; Guilavogui, Kaman; IRAG, CRA, Seredou, Guinea; guilavoguikm@yahoo.fr; de Foresta, Hubert; IRD, UMR AMAP, Montpellier, France; hubert.de.foresta@ird.fr. |
| The cultural valuation of biodiversity has taken on renewed importance over the last two decades as the ecosystem services framework has become widely adopted. Conservation initiatives increasingly use ecosystem service frameworks to render tropical forest landscapes and their peoples legible to market-oriented initiatives such as REDD+ and biodiversity offsetting schemes. Ecosystem service approaches have been widely criticized by scholars in the social sciences and humanities for their narrow focus on a small number of easily quantifiable and marketable services and a reductionist and sometimes simplistic approach to culture. We address the need to combine methods from each of the “three cultures” of natural science, quantitative... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Anthropogenic landscapes; Conservation science; Cultural heritage; Ecosystem services; Sacred forests; Secondary forests. |
| Ano: 2016 |
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| ALMEIDA, D. R. A. de; ZAMBRANO, A. M. A.; BROADBENT, E. N.; WENDT, A. L.; FOSTER, P.; WILKINSON, B. E.; SALK, C.; PAPA, D. de A.; STARK, S. C.; VALBUENA, R.; GORGENS, E. B.; SILVA, C. A.; BRANCALION, P. H. S.; FAGAN, M.; MELI, P.; CHAZDON, R.. |
| Drone-based remote sensing is a promising new technology that combines the benefits of ground-based and satellite-derived forest monitoring by collecting fine-scale data over relatively large areas in a cost-effective manner. Here, we explore the potential of the GatorEye drone-lidar system to monitor tropical forest succession by canopy structural attributes including canopy height, spatial heterogeneity, gap fraction, leaf area density (LAD) vertical distribution, canopy Shannon index (an index of LAD), leaf area index (LAI), and understory LAI. We focus on these variables? relationship to aboveground biomass (AGB) stocks and species diversity. In the Caribbean lowlands of northeastern Costa Rica, we analyze nine tropical forests stands (seven... |
| Tipo: Artigo de periódico |
Palavras-chave: Drone; GatorEye; Aerial surveys; Regeneração florestal; Biomassa aérea; Bosques lluviosos; Monitoreo; Restauración de bosques; Bosques secundarios; Biomasa aérea; Teledetección; Vehículos aéreos no tripulados; Sarapiquí; Heredia Province; Caribbean lowlands; Northeastern Costa Rica; Floresta Tropical; Reconhecimento Florestal; Floresta Secundaria; Sensoriamento Remoto; Raio Laser; Rain forests; Monitoring; Forest restoration; Secondary forests; Aboveground biomass; Remote sensing; Unmanned aerial vehicles; Lidar. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124130 |
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| PEQUENO, M. V.. |
| O objetivo deste estudo foi avaliar a aproximação de florestas secundárias (sistema agroflorestal e capoeira) com a floresta primária, levando em consideração sua estrutura, diversidade e similaridade dos componentes arbóreo, arbustivo e palmeiras. O experimento foi conduzido no município de Senador Guiomard no estado do Acre, tendo como referência valores da floresta primária. Calculou-se a aproximação dessas áreas, quanto à estrutura e diversidade, através dos índices de diversidade Shannon-Weaver, dominância, Simpson e de equitabilidade de Pielou, Fisher Alpha, usando o Teste "T" de Hutchenson ao nível de 5%. na área de floresta foram registrados 632 indivíduos, pertencentes a 123 espécies e 39 famílias. No sistema agroflorestal foram encontrados 511... |
| Tipo: Teses |
Palavras-chave: Sistema agroflorestal (SAF); Floresta primária; Aproximação; Approximation; Reforestación; Senador Guiomard (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Agrossilvicultura; Capoeira; Floresta Secundaria; Reflorestamento; Agroforestry; Primary forests; Secondary forests; Reforestation. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1033013 |
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| Coomes, Oliver T.; Department of Geography, McGill University; oliver.coomes@mcgill.ca; Takasaki, Yoshito; Graduate School of Economics, University of Tokyo; takasaki@e.u-tokyo.ac.jp; Rhemtulla, Jeanine M.; Department of Forest & Conservation Sciences, University of British Columbia; jeanine.rhemtulla@ubc.ca. |
| Can social inequality be seen imprinted in a forest landscape? We studied the relationship between land holding, land use, and inequality in a peasant community in the Peruvian Amazon where farmers practice swidden-fallow cultivation. Longitudinal data on land holding, land use, and land cover were gathered through field-level surveys (n = 316) and household interviews (n = 51) in 1994/1995 and 2007. Forest cover change between 1965 and 2007 was documented through interpretation of air photos and satellite imagery. We introduce the concept of “land use inequality” to capture differences across households in the distribution of forest fallowing and orchard raising as key land uses that affect household welfare and the sustainability of... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Amazonia; Land inequality; Land use and land cover change; Path dependency; Secondary forests. |
| Ano: 2016 |
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| Registros recuperados: 37 | |
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