Amazon Wetlands
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Predicting the potential distribution of aquatic herbaceous plants in oligotrophic Central Amazonian wetland ecosystems
ABSTRACT Aquatic herbaceous plants are especially suitable for mapping environmental variability in wetlands, as they respond quickly to environmental gradients and are good indicators of habitat preference. We describe the composition of herbaceous species in two oligotrophic wetland ecosystems, floodplains along black-water rivers (igapó) and wetlands upo
Acta Bot. Bras.. Publicado em: 2021-03
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2. Implications of global climate change for the development and ecological interactions between two key Amazonian aquatic macrophytes
ABSTRACT Amazon wetlands are among the most vulnerable ecosystem to be impacted by climate change, which may increase the frequency of extreme droughts and floods. We used Eichhornia crassipes and Pistia stratiotes, two abundant aquatic plants in the Amazon floodplains, to evaluate the effects of combined temperature and [CO2] increase on growth, physiology
Acta Bot. Bras.. Publicado em: 2021-03
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3. Aquatic vascular plants of South Brazil: checklist and a comparative floristic approach
ABSTRACT Aquatic ecosystems support species diversity, and knowledge of plant communities is essential for wetland conservation programs. This study provides a checklist of aquatic vascular plants of South Brazil and establishes their floristic affinities with bordering South America phytogeographical domains. The checklist was based on 52 sources, including
Acta Bot. Bras.. Publicado em: 07/10/2019
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4. Establishing a standard for handmade Brazilian cassava flour from Baixada Cuiabana (Mato Grosso, Brazil) to support its processing and sale
Abstract The Baixada Cuiabana region contains the confluence of the Brazilian Savannah, Amazon and wetlands biomes. This region brings together small producers of cassava who prepare dry flour by hand, maintaining a bank of active ethno-varieties of this crop and that are of cultural, social, economic and genetic importance. This study aimed to establish a
Food Sci. Technol. Publicado em: 13/12/2018
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5. Xyridaceae of Viruá National Park, Roraima state, Brazil
Abstract A taxonomic treatment of the Xyridaceae in the Viruá National Park is presented. Located in Roraima state, northern Brazil, the park comprises a mosaic of lowland vegetation types, including forests, wetlands, and one of the largest continuous areas of campinarana in the Brazilian Amazon Basin. Xyridaceae are represented in the park by 20 species i
Rodriguésia. Publicado em: 2015-06
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6. Effects of flooding and shading on growth and gas exchange of Vochysia divergens Pohl (Vochysiaceae) of invasive species in the Brazilian Pantanal
Vochysia divergens Pohl (commonly known as cambara) is a pioneer tree species that is native to the Amazon Basin but has been invading the seasonally flooded wetlands of the Brazilian Pantanal, forming monospecific communities. The physiological aspects associated with cambara invasion, including the effects of flooding and shading on growth and leaf gas exc
Braz. J. Plant Physiol.. Publicado em: 2012-06
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7. Alteração no uso e cobertura do solo na bacia do médio rio Araguaia, Brasil central / Land use land and cover changes in the middle Araguaia river basin, central Brazil
The central region of the Araguaia river basin encompasses a transition area between the Tropical Rain Forest and the Cerrado in Brazil. Despite of the fact that during the last four decades, this area has undergone an intense deforestation process, the quantification and impact of these changes are still unknown. Thus this study aimed to evaluate the dynami
Publicado em: 2010
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8. Biblioteca espectral: determinação de espectros de referência para a classificação de tipos de água das áreas alagáveis da Amazônia / Spectral library: references for water types classification in Amazon wetlands
Atualmente, os métodos para a caracterização de propriedades de águas continentais a partir de dados hiperespectrais baseiam-se em modelos semi-analíticos e empíricos. Uma alternativa a esses modelos é a construção de uma biblioteca espectral de referência que permita caracterizar diferentes tipos de água a partir da classificação do comportamen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/03/2009
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9. Biblioteca espectral: determinação de espectros de referência para a classificação de tipos de água das áreas alagáveis da Amazônia / Spectral library: references for water types classification in Amazon wetlands
The advent of orbital hyperspectral sensors increased the possibility of assessing water properties in complex inland waters, such as that of Amazon wetlands. The current methods for water properties assessment are based upon empirical and semi-analytical models. An alternative to those methods is to build a water spectral library as reference to classify di
Publicado em: 2009
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10. Biblioteca espectral: determinação de espectros de referência para a classificação de tipos de água das áreas alagáveis da Amazônia / Spectral library: references for water types classification in Amazon wetlands
Atualmente, os métodos para a caracterização de propriedades de águas continentais a partir de dados hiperespectrais baseiam-se em modelos semi-analíticos e empíricos. Uma alternativa a esses modelos é a construção de uma biblioteca espectral de referência que permita caracterizar diferentes tipos de água a partir da classificação do comportamen
Publicado em: 2009
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11. Fatores que influem na emissão de CO2 e CH4 em áreas alagáveis interfluviais do médio Rio Negro
Wetlands in the Amazon basin have been shown to be a globally significant source of methane and carbon dioxide, important greenhouse gases. However interfluvial savanna wetlands of Negro River basin have not been characterized. Here we describe the hydrometeorology and their influence on emissions of CO2 and CH4 from these wetlands to improve regional emissi
Publicado em: 2007
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12. Imagens EOS-MODIS e LANDSAT 5 TM no estudo da dinâmica das comunidades de macrófitas na várzea amazônica / EOS-MODIS and LANDSAT 5 images for the study of macrophyte community dinamics in the Amazon varzea
Wetlands encompass about 4 to 6% of the terrestrial surface, occurring in all climates, from the tropics to the tundra, in all continents, and exhibit considerable function in the global carbon cycle, being responsible for up to 72% of the global total methane emissions by non-anthropogenic sources. The Amazon river floodplain is one of the most extensive ar
Publicado em: 2004