Ecosystem Assessment
Mostrando 13-24 de 43 artigos, teses e dissertações.
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13. Mutagênese ambiental: estabelecimento de valores de referência para manguezais da Baía de Ilha Grande / Environmental mutagenesis: establishment of reference valves for mangroves of Ilha Grande Bay
Environmental studies have shown that substances generated by anthropogenic processes can cause adverse effects by interfering with the ecosystem natural balance. Mangroves perform essential functions in biological cycles and are Permanent Protection Area in Brazil. Unfortunately, they are being degraded above its support limit, leading to a reduction of the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
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14. OS IMPACTOS SOCIOAMBIENTAIS GERADOS NA OCUPAÇÃO URBANA DO BAIRRO JARDINS- ARACAJU-SERGIPE. / SOCIAL AND ENVIRONMENTAL IMPACTS OF URBAN EMPLOYMENT GENERATED IN NEIGHBORHOOD GARDEN-ARACAJU-SERGIPE.
The rapid rate of population growth, increasing urbanization coupled processes that are often disorderly, intensifying deforestation and causes the transformation of the natural environment, giving rise to questions about the depletion of natural resources. In this scenario, the housing boom has been one of the strongest factors of environmental degradation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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15. Impacts of AKST on development and sustainability goals.
Assessment and analysis of AKST impacts; Agriculture productivity, production factors and consumption; impacts of akst on sustainability, through integrated technologies and the delivery of ecosystem services and public goods; Impacts of akst on livehoods, capacoty strenthening and empowerment; relationshipsbetween akst, coordination and regulatory processes
MCLNTYRE. Publicado em: 2011
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16. Avaliação da produção de sedimento na bacia hidrográfica do rio Potengi através do modelo SWAT
Anthropic disturbances in watersheds, such as inappropriate building development, disorderly land occupation and unplanned land use, may strengthen the sediment yield and the inflow into the estuary, leading to siltation, changes in the reach channel conformation, and ecosystem/water quality problems. Faced with such context, this study aims to assess the ap
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/12/2010
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17. Uso do sensoriamento remoto orbital e de superfície para o estudo do comportamento espectral do corpo de água do reservatório de Manso, MT, Brasil / Use of orbital and surface remoto sensing to the study of the spectral signature of the reservoir water Body, MT, Brazil
The monitoring of water quality of a reservoir allows for preservation of the environment as well as bringing social-economic benefits. Remote Sensing accomplishes this monitoring in a synoptic way, because it considers spatial and time scales necessary to evaluate an aquatic ecosystem. For this, a Moderate Resolution Imaging Spectroradiometer (MODIS) sensor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2009
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18. Avaliação ecotoxicológica da adição de nitrato em sedimentos eutrofizados da Represa Ibirité (Betim MG): experimentos em microcosmos
The objective of the present dissertation was to make a toxicity assessment of the application of calcium nitrate solution as a remediation procedure for sediments of a eutrophic aquatic ecosystem. The study was carried out using microcosms with superficial sediments and water from sediment-water interface of the Ibirité Reservoir located in the metropolita
Publicado em: 2009
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19. Frequência e diversidade de colifagos somáticos isolados de amostras de água do mar, plâncton e bivalves da baixada santista, canal de São Sebastião e Ubatuba. / Frequency and diversity of somatic coliphages isolated from seawater, plankton and bivalves samples from baixada Santista, Canal de São Sebastião e Ubatuba.
The somatic coliphages (SC) are the better indicator for fecal pollution. In this research, it was obtained the SC abundance in seawater, plankton and bivalves samples collected from Santos, São Sebastiâo and Ubatuba. SC counts were correlated with marine viable bacteria, thermotolerant coliforms, E. coli and intestinal enterococci, and the correlation was
Publicado em: 2009
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20. Assessment of polarimetric ALOS PALSAR data for Amazon land cover classification / Avaliação de dados polarimétricos do sensor ALOS PALSAR para classificação da cobertura da terra da Amazônia
Amazon Forest is considered the largest tropical forest of the planet. It keeps considerable part of the biodiversity and has great importance to the biogeochemistry cycles. The anthropic actions cause destructive processes such as deforestations and burnings, which can provoke unbalances on the ecosystem. This scenario highlights the importance of the monit
Publicado em: 2009
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21. Levantamento ambiental e pesqueiro dos rios Jaboatão e Pirapama no Estado de Pernambuco, Brasil
The increasing human populations that live on, work with and use resources of coastal areas place pressure on these resources, which, together with pressure from natural sources, must be monitored and understood in order to ensure the preservation of the environment and maintenance of quality of life. The rivers that empty along the coast of the state of Per
Publicado em: 2009
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22. Uso do sensoriamento remoto orbital e de superfície para o estudo do comportamento espectral do corpo de água do reservatório de Manso, MT, Brasil / Use of orbital and surface remoto sensing to the study of the spectral signature of the reservoir water Body, MT, Brazil
The monitoring of water quality of a reservoir allows for preservation of the environment as well as bringing social-economic benefits. Remote Sensing accomplishes this monitoring in a synoptic way, because it considers spatial and time scales necessary to evaluate an aquatic ecosystem. For this, a Moderate Resolution Imaging Spectroradiometer (MODIS) sensor
Publicado em: 2009
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23. AvaliaÃÃo das concentraÃÃes de elementos quÃmicos nos sedimentos de fundo do estuÃrio do Rio Formoso (PE)
The estuary of Formoso river is located in the south coastal zone of the Pernambuco state, in an environmental protection area, named APA of Guadalupe. This is an important coastal ecosystem with a rich biodiversity, which plays an important socioeconomic role for the local population. Anthropogenic activities such as shrimp farming, sugar cane cultivation,
Publicado em: 2009
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24. Drenagem urbana sob cenários de longo prazo visando incentivos ambientais / Urban drainage in long term scenarios subsidizing environmental incentives
This research discussed the study of regional scenarios of urban drainage of the main sub-basins belonging to the urban area of San Carlos/SP and the application of environmental incentives in lot scale. The projections of time made are related to changes of use and occupation of land for the years of 2025, 2050, 2075 and 2100. The scenarios of use and occup
Publicado em: 2008