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Geoprocessamento e Biodiversidade: contribuições - DPI

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Geoprocessamento e Biodiversidade: contribuições - DPI
THE ROLE OF SETTLEMENTS IN EXTENDED AMAZONIAN URBAN TISSUE
Antônio M. V. Monteiro1, Ana Paula Dal’ Asta1, Carolina M. D. de Pinho1, Fernanda R. Soares1, Maria Isabel S. Escada1, Newton Brigatti2, Silvana Amaral1
Instituto Nacional de Pesquisas Espaciais (INPE) – Coordenação de Observação da Terra (OBT)
Caixa Postal 515 - 12245-970 - São José dos Campos - SP, Brazil
1{miguel,
Projeto URBISAmazônia
anapdalasta, carolina, ferocha, isabel, silvana,}@dpi.inpe.br
[email protected]
PROJETO CENÁRIOS
Introduction
In the Amazon, the urban phenomenon is not restricted to cities and formal
villages, but it spreads out across the territory including other forms of settlements,
such as indigenous areas and riverside communities. We assumed that every unit of
human settlements is part of the urban space.
Our goal is to identify and describe the settlements, as well as to analyze its
articulation in the urban space. The urban space is understood from the urban network
concept: a set of functional and articulated locals in which there is the generation,
appropriation and circulation of surplus value.
Indentification
Study Site
Description
Articulation
Indentification
Description
Digital image processing steps to identify spatial units of human occupation: (A) original TM5 image in the west Santarém ; (B) 3 × 3
average filtering; (C) limits from segmentation procedure; (D) image classification of subtraction image (TM5 - TM4).
Intra-urban occupation patterns and the respective
settlements description
Riverine communities categories from hierarchical
clustering analysis
Hierarchical Clustering
Spatial units of human occupation identified using Landsat TM digital
Classification: (A) city of Belterra, (B) village of Itacimpasa, (C) district of
Mojuí dos Campos, (D) São Jorge community, (E) Santarém urban sprawl area,
(F) sawmill at Moraes de Almeida District, (G) Curitimbó riverine community and (H)
district of Brasília Legal.
Limits of the spatial unit of human occupation obtained for Novo
Progresso: (A) Landsat TM and CBERS-CCD/HRC merged image color
composition; (B) spatial patterns mapping.
A set of 30 description variables was used to define a typology for
the riverine communities in the Baixo Tapajós. Qualitative and
quantitative techniques such as Principal Components Analysis
and Hierarchical Clustering resulted in five groups of communities.
Communities inside official conservation units at both Tapajós
riverbanks showed a distinct situation from others, and the
presence of the state providing federal assistance program, was
essential to maintain all the communities.
Articulation
We propose a methodology to characterize the networks of people and goods circulation at local scale. These networks would link both
the settlements themselves, and the settlements with the cities in the Amazonian urban space. From the social networking analysis, we selected
some metrics and techniques to be applied in a spatial context. Based on fieldwork data obtained for riverine communities along Baixo Tapajós
River, we identified six networks: education, health care center, hospital, public transportation (ground and river), purchase of goods, and
production sales.
Components map of health center
care network. Baixo Tapajós. 2009.
IC synthesis map. Baixo Tapajós. 2009
Networks resulted from the displacement of people seeking for education and basic level health represented the connection and the
articulation between communities. Networks resulted from goods trade, mainly from selling local products expressed the
connection between the settlements and the formal cities network. .
Blockmodelling map transportation network. Baixo Tapajós. 2009
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