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Registros recuperados: 5
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An analysis of landscape fragmentation in the Brazilian Amazon based on deforestation data derived from Landsat imagery. Repositório Alice
ALVES, D. S.; BATISTELLA, M.; LINHARES, C. A..
Deforestation in the Brazilian Amazon has produced fragmentation of the largest tropical rain forest in the planet resulting in impacts over biodiversity and the functioning of ecosystems. Most of the deforestation is known to be concentrated near major roads and areas of pioneer colonization, but few studies have quantitatively analyzed patterns and processes of landscape fragmentation associated with this spatial dynamics. In this paper we evaluate the effect of forest clearing based on two landscape metrics - percent cleared and percolation - for areas in the states of Mato Grosso, Pará, and Rondônia where the largest rates of deforestation have been observed. Deforestation data included one data set derived from Landsat MSS imagery for the 1970?s and...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Florestas Amazonica; Fragmentação da Floresta; Amazônia.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/31677
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Human dimensions in LBA. Repositório Alice
BECKER, B. K.; ALVES, D. S.; REIS, E. J.; VIEIRA, I. C.; BATISTELLA, M..
By focusing on the linkages between human-induced land cover/use change and the functioning of Amazonian systems, LBA research needs significant contributions from the social and human sciences.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Land cover.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/17767
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Landscape fragmentation in the Brazilian Amazon: an analysis based on deforestation data derived form Landsat imagery. Repositório Alice
ALVES, D. S.; BATISTELLA, M.; LINHARES, C. A.; MORAN, E. F..
2006
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Land use and land cover change.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1008601
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People and environment in Amazonia: the LBA experience and other perspectives. change. Repositório Alice
BATISTELLA, M.; ALVES, D. S.; MORAN, E. F.; SOUZA, Jr. C.; WALKER, R.; WALSH, S. J..
Amazonia is the arena for an ongoing extraordinary transformation of nature and society. This process of change can be depicted in many and by various disciplines, with emphasis on the biosphere or the atmosphere, as demonstrated by the Large-Scale Biosphere-Atmosphere Experiment in amazonia (LBA). However, the human factors behind environmental change should not be neglected. This chapter introduces the section on people and environment in the region proposing an examination of the human dimensions of land use and land cover change from the LBA experience and other perspectives. As a basis for this approach, we provide a brief review on related topics and insights about opportunities for integrative research. Selected findings produced by LBA projects are...
Tipo: Capítulo em livro científico (ALICE) Palavras-chave: LBA; Amazonia; Large-Scale; Climate.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/662940
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The changing rates and patterns of deforestation and land use in Brazilian Amazonia. Repositório Alice
ALVES, D. S.; MORTON, D. C.; BATISTELLA, M.; ROBERTS, D. A.; SOUZA JR, C..
Investigating the rates and patterns of land cover and land use change (LCLUC) in Amazonia is a central issue for Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) research. LCLUC, along with climatic changes affects the biological, chemical, and physical functions of Amazonia, thereby linking environmental chance at the local, regional, and global scales. Considerable research has focused on estimating rates of forest conversion in Amazonia, mainly through the use of satellite remote sensing and evaluating factors that influence these rates, Beyond the rates of forest loss, LCLUC research in Amazonia has also considered the variety of agricultural uses that reokace firest civer, forest degradation from logging and fire, and secondary...
Tipo: Capítulo em livro científico (ALICE) Palavras-chave: Amazonia; Climate changes; LBA; Vegetation; Global scales.
Ano: 2009 URL: http://www.alice.cnptia.embrapa.br/handle/doc/663199
Registros recuperados: 5
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