Navegando por Assunto "Ecologia de paisagem"

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Acesso aberto (Open Access)
Contribuição do cadastro ambiental rural na conservação de recursos naturais nos limites de duas bacias hidrográficas amazônicas
(Universidade Federal do Pará, 2012-09-06) MONTEIRO, Felipe Freire; VENTURIERI, Adriano; http://lattes.cnpq.br/8968863324073508
The conversion from Forest to other kinds of alternative land uses has been occurred rapidly in the Amazon region. This process has been occurred mostly due to the development of the cattle ranching, large scale and familiar agriculture, commercial timber and mining. In this context, objecting to promote the conservation of natural resources, the Brazilian government adopted the system of protected areas, Indian lands and quilombo. And also to promote major environmental protection and conservation of resources, were created tools such as the Cadastro Ambiental Rural – CAR objecting to map and monitoring rural properties to comply with the disposed in the brazilian forestry code, considering mainly the legal reserve and the permanently protected areas. Thereby, this research tried to evaluate the capacity of such legal reserves to ensure the conservation of natural resources, making use of the CAR data and other products of governmental agencies researches. Two Amazon basins were evaluate through principles of landscape ecology with the use of landscape metrics. The results indicate that the two study areas have different characteristics, one having more capacity to maintain the resources and other markedly more fragmented, indicating also different characteristics of rural properties with different importance to the conservation of the natural resources.
Acesso aberto (Open Access)
Ecologia de paisagem aplicada à análise ambiental do sítio arqueológico PA-BA-84: Alunorte em Barcarena-PA
(Universidade Federal do Pará, 2008-08-13) PEREIRA, Elves Marcelo Barreto; GONÇALVES, Nelson Veiga; http://lattes.cnpq.br/8811269146444725; SENNA, Cristina do Socorro Fernandes de; http://lattes.cnpq.br/6622787329862653
One of the task of the archaeological research in Amazon is to understand the relationships between past human populations and tropical rain forest. Is very important to define landscape units on contextual human occupation process and thus, to integrate this environmental data to archaeological sites context. This article aims to define the composition of conceptual landscape units of the archeological site PA-BA-84: ALUNORTE, utilizing the geographic approach of the Landscape Ecology as the efficient tool on archaeological patrimony preservation policy. This systemic approach outstanding the mutual interdependency of the landscape elements and yours interactions, generating two spacial units: microenvironment and macroenvironment of the archaeological site. The taxonomic classification of the landscape units is related to distinct spacial scales of geographic units, where geosystem unit is related to major scale of the site macroenvironment analisys, while geofacies unit and geotop unit are related to minor scales of the site microenvironment analisys. The results show the effort to define the conceptual limits of the archaeological sites and boths geographic and environmental context of the use of the space for distinct activities, that involve fishing, hunting party, searching of vegetable resource, ritual practices and others, generally preserved on boths archaeological artifacts and ecofacts.