Sedimentation Dynamics
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Sediment Morphology, Distribution, and Recent Transport Dynamics in a Reforested Fragment
Abstract Erosion generates large amounts of sediment, which may be deposited at the site of origin, on the slope of a hill, or along waterways. The transportability of each type of sediment by runoff and its potential for subsequent deposition largely depends on its morphological features and particle size distribution. The aim of this study is to describe a
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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2. Circulation and suspended sediment dynamics in a tropical estuary under different morphological setting
ABSTRACT Estuarine processes are directly related to the interaction of its forcing conditions with the local morphology. In this study we assess the implications of the opening of a new inlet on the hydrodynamics and suspended sediment concentration (SSC). A set of physical parameters have been measured in the Itanhém river estuary, a small, shallow and ma
An. Acad. Bras. Ciênc.. Publicado em: 01/09/2016
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3. Dinâmica da sedimentação em solos sob matas ciliares / Sedimentation dynamic under riparian forested soils
A expansão agrícola no Cerrado brasileiro vem causando severos impactos negativos decorrentes do manejo inadequado das terras. Um destes impactos é a erosão em campos de cultivo que gera grande quantidade de sedimentos, os quais podem ser interceptados em faixas vegetadas com espécies arbóreas ou gramíneas. Várias medidas conservacionistas são indic
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2011
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4. Morfodinâmica da embocadura da Lagoa do Peixe e da linha de praia adjacente
The investigation of morphological change in lagoonal inlets and shorelines can be instrumental to describe the influence of short term coastal processes. The Lagoa do Peixe (LP) is set within the Parque Nacional da Lagoa do Peixe (PNLP), 344 km², located on the mid-section of the Rio Grande do Sul coastal plain. The objective of this work was to describe t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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5. Population dynamics of the migratory fish Prochilodus lineatus in a neotropical river: the relationships with river discharge, flood pulse, El Niño and fluvial megafan behaviour
The relative importance of flood pulse dynamics and megafan behaviour for the Sábalo (Prochilodus lineatus) catches in the neotropical Pilcomayo River is studied. The Sábalo catches can mainly be explained by decreased river discharges in the preceding years resulting in smaller inundated areas during rainy season floods and thereby in a decreased area of
Neotropical Ichthyology. Publicado em: 26/02/2010
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6. Dinâmica costeira das praias de Tambaú e Manaíra-PB
The purpose of this study is characterize several aspects that set up the scenery of the beaches Tambaú and Manaíra in the city of João Pessoa/PB, where are emphasized the natural and anthropogenic characters that have influence in coastal dynamics as a subsidy to the planning of the area. The studied beaches have an extension of approximately 3,000 meter
Publicado em: 2010
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7. Os Nematoda da plataforma continental da região sudeste brasileira sob a influência da Água Central do Atlântico Sul: Cabo Frio (RJ) e Ubatuba (SP) / The Nematoda of the continental shelf of the Brazil\ s southern region under the influence of the South Atlantic Central Water intrusion: Cabo Frio (RJ) and Ubatuba (SP)
Meiofauna is an important component of the marine benthic ecosystem as its densities are usually high in continental shelf sediments and respond quickly to environmental changes. Nematoda is the dominant group among meiofauna organisms, is highly diverse and can be used, as well as meiofauna, as a tool for natural and anthropogenic impacts monitoring. This s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/09/2009
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8. Proteção social ao idoso. Conquistas e desafios
This document intends to considerer the age, the aging process as a biological and a social problem in the same way of its protection and pretends to register what becomes a journey of the elderly throughout the history of mankind, attempting to its values in different civilizations. Watching the consequences of aging, we try to find out an answer to the que
Publicado em: 2009
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9. A influência da implantação de um terminal aquaviário na dinâmica sedimentar local da Baía de Guanabara / The influence of the implantation of an aquaviary terminal in local dynamics sedimentary f the Guanabara Bay, RJ
Since the beginning of the XIX century, interventions on the Guanabaras Bay drainage basin result in severe environmental degradation. This work aimed to analyze the implementation of an Aquaviary Terminal of Liquefied Natural Gas (LNG), and its putative consequences on the local sedimentation processes, and the availability and possible associated contamina
Publicado em: 2008
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10. DinÃmica vegetacional e climÃtica holocÃnica da Caatinga, na regiÃo do Parque Nacional do Catimbau, BuÃque - PE
The main objective of the present work was to describe the Holocene dynamics of the Caatinga vegetation, in the region of the National Park of Catimbau, BuÃque, PE, Brazil. Palynological analyses were carried out from clay, rich in plant organic-matter, deposited on the low slopes of the Serra do JerusalÃm, in the Brejo de SÃo Josà Farm (8 32â 45ââS
Publicado em: 2008
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11. Estudos sedimentolÃgico, morfolÃgico e hidrodinÃmico do Canal de Santa Cruz â PE
The Chanal of Santa Cruz is estuarine system with 22 Km of extension, two connections of the sea and 36.6 Km2 of area. Itâs situated on Pernambuco North cost and separating ItamaracÂa Island from to the continent. They discharge a set of rivers and streams, being main the Itapessoca, Carrapicho, Botafogo and Igarassu. The mongrove ecossistem it was much de
Publicado em: 2008
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12. Evolution of holocene lagunar sedimentation in Jaguaruna, Santa Catarina State, Brazil: a sedimentary and micropaleontological approach / Evolução da sedimentação lagunar holocênica na região de Jaguaruna, Estado de Santa Catarina: uma abordagem sedimentológica-micropaleontológica integrada
O estudo de três testemunhos rasos (até 2,5m de profundidade) coletados na região de Jaguaruna, litoral centro-sul de Santa Catarina, permitiu reconstituir parte da história de evolução sedimentar holocênica na área. Para isso, foi feita a análise integrada de quatro tipos de variáveis: sedimentológicas, diatomológicas, palinológicas e geoquími
Publicado em: 2008