Polígonos de Voronoi como alternativa aos problemas das áreas mínimas comparáveis: uma análise das mudanças populacionais na região norte do Brasil

Silva, Renilson Rodrigues da; Bacha, Carlos José Caetano

doi:10.1590/s0102-30982011000100007

Cited by 4 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The vector point file used to identify the populations and their family income was spatialized by the Voronoi triangulation method, widely used for data or social phenomena decomposition [46] of a given space. The generated polygons were converted from vector to matrix form, generating a continuous family income surface of localities near the cultivation areas.…”

Section: Social and Environmental Vulnerability Indicatorsmentioning

confidence: 99%

Seaweed Production Potential in the Brazilian Northeast: A Study on the Eastern Coast of the State of Rio Grande do Norte, RN, Brazil

et al. 2020

View full text Add to dashboard Cite

Seaweed is a source of multipurpose bioresources, providing millions of dollars to the world’s economy and performing various ecosystem services that aid in maintaining marine balance, reducing eutrophication, providing nutrients and mitigating atmospheric CO2. In this context, this study aims to evaluate the potentialities of the cultivation of the Crassiphycus birdiae seaweed on the eastern coast of the state of Rio Grande do Norte (RN), Brazil, considering the physical and environmental aspects. Estimates concerning suitable areas and their productive potential for the Biomass, Bioethanol, Biofertilizer and Agar bioproducts were carried out. These estimates were based on the Modular Ferry System (MFS) installed on the state coast. Suitable cultivation areas were determined by applying an Analytic Hierarchy Process (AHP) and change detection analysis based on physical and infrastructure factors, such as areas sheltered by winds, sea currents and waves, proximity to seaweed banks, road infrastructure and socioeconomic and environmental factors. Areas identified as suitable for seaweed cultivation totaled 2227.59 ha in area, with a productive potential of 195 thousand tons of fresh biomass/year, over two million liters of ethanol/year and about 43 tons of agar/year. These findings demonstrate that the northeastern coast of Brazil has the potential to generate employment and income through seaweed cultivation, stimulating the coastal region’s development in a sustainable manner.

show abstract

Section: Social and Environmental Vulnerability Indicatorsmentioning

confidence: 99%

Seaweed Production Potential in the Brazilian Northeast: A Study on the Eastern Coast of the State of Rio Grande do Norte, RN, Brazil

et al. 2020

View full text Add to dashboard Cite

show abstract

Minimum comparable areas for the period 1872-2010: an aggregation of Brazilian municipalities

Ehrl

2017

Estud. Econ.

View full text Add to dashboard Cite

Since the imperial era, the number of municipalities in Brazil has risen continually and substantially. These changes in the delineation of spatial units pose a difficulty for any research that intends to use regional data from different years. The present paper develops a routine for the generation of time-consistent 'Minimum Comparable Areas' (AMC) for any arbitrary sub-period between two census years in the range between the first and last demographic census 1872-2010. It relies on recently compiled material by the Brazilian Institute for Geography and Statistics (IBGE). The corresponding Stata code is provided in the Appendix of the paper. Thus, the developed AMCs are immediately accessible and enable long-term panel studies with regional data.

show abstract

Acessibilidade e aglomerações na Região Norte do Brasil sob o enfoque da Nova Geografia Econômica

Silva

Bacha

2014

Nova econ.

Self Cite

View full text Add to dashboard Cite

O objetivo deste artigo é quantificar e analisar os determinantes do crescimento populacional desigual dos municípios da Região Norte do Brasil, de 1980 a 2000, fundamentado na Nova Geografia Econômica (NGE). Utiliza-se como variável explicativa um índice de potencial de mercado desenvolvido para a Amazônia, o qual substitui a equação dos salários da NGE. As equações são estimadas aplicando o método de econometria espacial. Constatou-se que os municípios mais pobres da Região Norte têm no fator isolamento geográfico um dos determinantes da sua condição econômica. As dificuldades de acesso impedem esses municípios de escoar sua produção, basicamente oriunda da agropecuária, aos mercados potenciais. Confirmou-se também que houve redução nos custos de transportes, que culminou na melhoria da acessibilidade e na formação das aglomerações populacionais.

show abstract

Polígonos de Voronoi como alternativa aos problemas das áreas mínimas comparáveis: uma análise das mudanças populacionais na região norte do Brasil

Cited by 4 publications

References 3 publications

Seaweed Production Potential in the Brazilian Northeast: A Study on the Eastern Coast of the State of Rio Grande do Norte, RN, Brazil

Seaweed Production Potential in the Brazilian Northeast: A Study on the Eastern Coast of the State of Rio Grande do Norte, RN, Brazil

Minimum comparable areas for the period 1872-2010: an aggregation of Brazilian municipalities

Acessibilidade e aglomerações na Região Norte do Brasil sob o enfoque da Nova Geografia Econômica

Contact Info

Product

Resources

About