Land Cover Structure
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. MODELAGEM DA EXPANSÃO DO REFLORESTAMENTO COM EUCALIPTO E EFEITOS NA ESTRUTURA DA PAISAGEM
Resumo Neste artigo trabalhamos uma metodologia combinada de sensoriamento remoto, modelagem ambiental e ecologia da paisagem para análise dos impactos da expansão do reflorestamento com eucalipto na estrutura da paisagem. O uso combinado dessas técnicas possibilitou a simulação de cenários futuros, utilizando-os não apenas como uma ferramenta de aná
Mercator (Fortaleza). Publicado em: 09/12/2019
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2. Landscape Ecology in a Watershed of the Ocoy River, Western Parana State, Brazil
ABSTRACT This study evaluated the landscape structure of a watershed located in a region considered strategic for the implementation of the Paraná River Biodiversity Corridor. Based on land-use/land-cover mapping, four different scenarios were generated: 1) real situation, 2) considering the edge effect, 3) without Permanent Preservation Areas (APPs), and
Floresta Ambient.. Publicado em: 07/02/2019
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3. Effects of deforestation on headwater stream fish assemblages in the Upper Xingu River Basin, Southeastern Amazonia
RESUMO A expansão da fronteira agrícola amazônica representa a mais ampla mudança na cobertura e uso da terra no mundo contemporâneo, e ameaça a integridade de ecossistemas de riachos que abrigam a maior diversidade de peixes de água doce do planeta. Nosso objetivo foi testar as hipóteses de que o desmatamento afeta a abundância, a riqueza e a estru
Neotrop. ichthyol.. Publicado em: 31/01/2019
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4. Effects of forest conversion on the assemblages' structure of aquatic insects in subtropical regions
The effects of forest conversion to agricultural land uses on assemblages of aquatic insects were analyzed in subtropical streams. Organisms and environmental variables were collected in six low-order streams: three streams located in a forested area, and three in areas converted to agricultural land uses. We expected that the aquatic insects' assemblage att
Rev. Bras. entomol.. Publicado em: 2015-03
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5. CARACTERIZACIÓN Y CUANTIFICACIÓN DE FRAGMENTOS DE BOSQUE NATIVO, EN UN SECTOR DEL SECANO INTERIOR DE LA REGIÓN DEL MAULE, CHILE
ABSTRACT In general, the Mediterranean forests have suffered high levels of fragmentation, mainly by anthropogenic action, as result of the productive activities of agriculture and livestock, human settlements and forest plantations of fast growing exotic species, leading to loss of continuity of natural forests, and thus a decrease of biodiversity. In this
Ciênc. Florest.. Publicado em: 2013-09
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6. Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
Soybean is the most important oilseed cultivated in the world and Brazil is the second major producer. Expansion of soybean cultivation has direct and indirect impacts on natural habitats of high conservation value, such as the Brazilian savannas (Cerrado). In addition to deforestation, land conversion includes the use of fertilizers and pesticides and can l
Brazilian Journal of Microbiology. Publicado em: 2010-06
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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. Estrutura da vegetação, cobertura florestal e preferências de uso da paisagem associadas a vertentes: as quase-florestas de São Luiz do Paraitinga / Vegetation structure, land use and land cover related to slopes: quasiforests in a fragmented landscape (Southeastern Brazil)
O município de São Luiz do Paraitinga, SP, originalmente coberto pela Floresta Atlântica estabelecida sobre os mares de morros do Planalto Atlântico, testemunhou o uso intensivo da terra que resultou em uma paisagem onde predominam pequenos fragmentos de floresta secundária. Considerando práticas agrícolas orientadas pela topografia nesta paisagem, av
Publicado em: 2010
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9. A desigualdade social no nordeste metropolitano : análise do período 1981 a 2008 / The inequality in Northeast metropolitan : analysis of the period 1981 to 2008
This paper analyzes the evolution, between 1981 and 2008, of social inequality in metropolitan areas of Salvador, Recife and Fortaleza. First of all, the main structural causes of social inequality in Brazil are discussed: the land property concentration, the structure of labor market, social policies and regional question. The national overview supports the
Publicado em: 2010
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10. Effects of habitat and landscape characteristics on medium and large mammal species richness and composition in northern Uruguay
The increasing world population and demand for food and other products has accelerated the conversion of natural habitats into agricultural lands, plantations and urban areas. Changes in habitat and landscape characteristics due to land-use change can have a significant effect on species presence, abundance, and distribution. Multi-scale approaches have been
Zoologia (Curitiba). Publicado em: 2010
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11. Classificação da cobertura da terra e do uso do solo urbano utilizando o sistema InterIMAGE e imagens do sensor QuickBird / Urban land cover and land use classification using the InterIMAGE system and QuickBird imagery
The object-based image analysis approach is presently the state of art for the classification of high spatial resolution imagery, specially in urban areas. Nevertheless, the cost of licenses of commercial software packages for these tasks is very high. InterIMAGE is an open source knowledge-based classification system whose image analysis concept is highly f
Publicado em: 2009
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12. Análise da cobertura da terra em áreas de preservação permanente em Rondônia: avaliação com imagens de videografia e do sensor TM / Analysis of land cover in areas of preservation permanent in Rondonia: videography and TM sensor images evaluation
Análises do desmatamento na Amazônia têm mostrado que os dispositivos do Código Florestal relativos à preservação de Reserva Legal frequentemente são infringidos nas regiões em que o desmatamento se concentra. Ao mesmo tempo, poucos estudos tratam da manutenção das Áreas de Preservação Permanente (APPs) na Amazônia. O presente estudo tem como
Publicado em: 2009