Vulnerability To Erosion
Mostrando 1-12 de 25 artigos, teses e dissertações.
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1. Risk of genetic vulnerability and aspects of the reproductive biology of Psychotria ipecacuanha (Rubiaceae), a threatened medicinal plant species of Brazilian forests
ABSTRACT Psychotria ipecacuanha, commonly known as Ipeca, is a medicinal plant of pharmacological and economic value. The species is distylous; it has populations with two floral morphs, one with long and one with short styles. Apart from the presence of two floral morphs in a balanced ratio (1:1), reciprocal herkogamy of the reproductive organs between alte
Acta Bot. Bras.. Publicado em: 12/09/2019
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2. Diagnosis of the Accelerated Soil Erosion in São Paulo State (Brazil) by the Soil Lifetime Index Methodology
ABSTRACT: The soil is a key component of the Earth System, and is currently under high pressure, due to the increasing global demands for food, energy and fiber. Moreover, the management of agricultural systems is often inadequate and ignores the agricultural suitability of lands, and particularly the vulnerability of soils. This paper demonstrates the appli
Rev. Bras. Ciênc. Solo. Publicado em: 19/12/2016
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3. Evaluation of the erosion susceptibility and proposal of a strategic zoning plan for the sustainable management of the Piranga River Watershed, MG / Avaliação da suscetibilidade à erosão e proposição de zoneamento estratégico com vistas à sustentabilidade da bacia hidrográfica do rio Piranga, MG
The Piranga River watershed lies within a region in Brazil which requires special attention because of negative environmental impacts from uncontrolled deforestation during the expansion of the agricultural activity, inadequate soil management and untreated effluent discharge, and also because of its low level of socioeconomic development. In addition, the P
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2012
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4. Aplicação e comparação de metodologias de análise ambiental no trecho leste do Rodoanel Metropolitano de São Paulo / Aplication and comparison of methodologies for environmental analysis in the Section East of the São Paulo Metropolitan Beltway
Este trabalho visa aplicar e comparar duas metodologias de análise ambiental, a de Ross (1994) e a de Crepani et al. (2001), que abordam o ambiente dentro de uma perspectiva sistêmica, utilizando o conceito de Unidades Ecodinâmicas proposto por Tricart (1977). O objeto do presente trabalho é o Trecho Leste do Rodoanel Metropolitano de São Paulo, parte d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/10/2011
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5. Geoprocessamento Aplicado a Analise da Vulnerabilidade à ErosÃo na Bacia Hidrografica do Rio Jaibaras - Cearà / Geoprocessing Applied to Analysis of Vulnerability to Erosion in River Basin Jaibaras - CearÃ
A bacia hidrogrÃfica do rio Jaibaras localiza-se na porÃÃo centro-norte do Estado do CearÃ, banhando nove municÃpios, Ã uma importante subbacia da bacia hidrogrÃfica do rio Acarau. Para a anÃlise dos recursos naturais foi considerado a bacia hidrogrÃfica como unidade territorial para o desenvolvimento do estudo, fundamentando-se com base teÃrico-me
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2011
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6. Análise dos processos erosivos e as relações com as perdas aceitáveis de solos na Bacia do Alto-Paraíba/PB
The aim of this study was to determine if the soil losses by erosion in Alto Paraíba basin soils are below the maximum tolerance determined by the Soils Department and Rural Engineering of Paraíba Federal University, campus of Areia/PB. by the Soils Department and Rural Engineering of Paraíba Federal University, campus of Areia/PB. This analysis was based
Publicado em: 2011
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7. Desenvolvimento de um sistema computacional para geração automática de mapas de vulnerabilidade como ferramenta de auxílio às ações de prevenção ao derramamento de óleo em áreas costeiras
The northern portion of the Rio Grande do Norte State is characterized by intense coastal dynamics affecting areas with ecosystems of moderate to high environmental sensitivity. In this region are installed the main socioeconomic activities of RN State: salt industry, shrimp farm, fruit industry and oil industry. The oil industry suffers the effects of coast
Publicado em: 2010
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8. Utilização de sistemas de informação geográfica na identificação de áreas vulneráveis à contaminação do lençol freático : o caso da bacia do alto e médio curso do rio Uberabinha - MG
Due to the necessity of finding an efficient way of management for the water resources, the drainage basin has been proposed as the basic unity for its planning and management. As mentioned, it has been chosen the basin portion of the Uberabinha River situated in the city of Uberlandia as the area to be studied. As the drainage basin of the Uberabinha River
Publicado em: 2009
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9. Relações entre a morfodinâmica e a utilização em trechos da costa oceânica da Ilha de Santa Catarina, SC, Brasil
This Doctorate dissertation analyzes the relation among morphodynamic characteristics of oceanic sandy beaches and the use of its coast. The study area is the oceanic coast of Santa Catarina Island, in Florianópolis, SC, southern Brazil. First of all, data about forty beach profiles, which had been monitored, were collected. Several parameters were analyzed
Publicado em: 2009
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10. Vulnerabilidade do litoral sul de pernambuco à erosÃo
This study proposes a methodology to estimate the vulnerability of coastal segments to erosion through a semi-quantitative approach and its application to 14 beaches on the southern coast of Pernambuco State, Northeast Brazil. Such analyses are important tools in the process of coastal management, aimed to establish priority areas for management. After resea
Publicado em: 2008
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11. O litoral de JoÃo Pessoa (PB), frente ao problema da erosÃo costeira
The JoÃo Pessoa- PB coast like other places of the Brazilian Northeastern, show erosive problems associated to natural process and a urban disorder occupation, that happened from the 70 decade, of last century, when the city began expanding towards the beaches. This work was onjective to classify the study area in relation to coastal erosion vulnerability.
Publicado em: 2008
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12. Mapeamento geomorfolÃgico e de processos erosivos da bacia hidrogrÃfica do rio Botafogo â PE utilizando tÃcnicas de geoprocessamento
This work presents the result of geomorphological and sedimentlogical studies and also erosion processes at the Botafogo Watershade, located 40 km north of Recife, Pernambuco State, Northeastern Brazil. In order to treat and analyse cartographic charts and remote sensing products , geoprocessing techniques were used. The data were validated and taken togethe
Publicado em: 2008