12 documents found, page 1 of 2

Macrohabitat classification of wetlands as a powerful tool for management and p...

Made available in DSpace on 2022-05-01T09:30:31Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; The construction of four large reservoirs for hydroelectric power generation in the main channel of the Paraná River and many others in the tributaries has eliminated important wetlands, except over an area of ∼2000 km2 between the reservoirs of the UHE Engenheiro Sérgio Motta (Porto Primavera) and the ...

Laboratório Flutuante "Harald Sioli" - Os primeiros dois anos

Apresenta-se um relatório sobre o uso do laboratório flutuante "Harald Sioli" do INPA, Manaus nos primeiros dois anos de sua existência e as pesquisas em andamento sobre a várzea Amazônica na Ilha de Marchantaria, Rio Solimões.

Química da água e macrófitas aquáticas de rios e igarapés na Bacia Amazônica e ...

Ao longo do trecho entre Cuiabá-Porto Velho-Manaus (cerca de 2300 km) foram tomadas 46 amostras de água de igarapés e rios, e analisadas quanto aos seguintes parâmetros químicospH, condutividade elétrica, Ca, Mg, Sr, Ba, Na, K. Mn, Fe, Al, Cu, Zn, org. C tot., P tot., Kjeldahl N. Paralelamente, foi anotada a ocorrência de macrófitas aquáticas. A análise dos resultados, em combinação com as informações existente...

Chemistry of different Amazonian water types for river classification: A prelim...

Water chemistry provides important parameters for the study of river ecology and management options of rivers and connected wetlands. Sioli, in the 1950s, established three water types (whitewater, blackwater and clearwater) for explaining limnological characteristics of the large Amazonian rivers, and related the physico-chemical parameters of these water types with the geological properties of their basins; a...

Áreas inundáveis - Um desafio para Limnologia

No decorrer de estudos limnológicos nas áreas inundáveis (várzea) do Médio Amazonas, encontraram-se dificuldades na aplicação da terminologia, dos conceitos e da metodologia desenvolvidas para os sistemas clássicos de água parada e água corrente. As pronunciadas oscilações periódicas do nível de água, em combinação com mudanças entre a fase aquática e a fase terrestre em grande escala, provocam condições, que n...

The effect of flooding on the exchange of the volatile C 2-compounds ethanol, a...

The effect of root inundation on the leaf emissions of ethanol, acetaldehyde and acetic acid in relation to assimilation and transpiration was investigated with 2ĝ€"3 years old tree seedlings of four Amazonian floodplain species by applying dynamic cuvette systems under greenhouse conditions. Emissions were monitored over a period of several days of inundation using a combination of Proton Transfer Reaction Mas...

The Brazilian freshwater wetscape: Changes in tree community diversity and comp...

Wetlands harbor an important compliment of regional plant diversity, but in many regions data on wetland diversity and composition is still lacking, thus hindering our understanding of the processes that control it. While patterns of broad-scale terrestrial diversity and composition typically correlate with contemporary climate it is not clear to what extent patterns in wetlands are complimentary, or conflictin...

Physicochemical features of Amazonian water typologies for water resources mana...

Today, an increasing amount of hydrochemical data indicate that the chemical composition of Amazonian rivers varies much more than the traditional classification indicates. In this first comprehensive review of Amazonian river chemistry, we synthesized critical information from 400 scientific publications and distinguish the types: white, black, clear, intermediate type A and type B. We show the distribution of...

Dendrochronological records of a pioneer tree species containing ENSO signal in...

The Pantanal is subjected to a monomodal and predictable flood pulse of low amplitude which is the main driver of ecological processes and patterns of biodiversity in one of the largest wetlands in the world. Nevertheless, little is known about how the plant communities of this wetland respond to predicted climate changes. In this paper, we used tree-ring analyses of Vochysia divergens Pohl (Vochysiaceae), a li...

Aquatic herbaceous plants of the Amazon floodplains: state of the art and resea...