Fastest spatial expansion observed among OECD metropolitan areas with population growth under 1% per annum (2000-06)

2020 ◽  
Vol 13 (1) ◽  
pp. 423
Author(s):  
Rudá Peixoto Teles ◽  
Maria Lucineide Gomes da Silva ◽  
Antonio Junior Alves Ribeiro

Na região Nordeste do Brasil existe uma gama de aglomerações urbanas, dentre as quais se destaca a conurbação urbana, conhecida como Crajubar, localizada na Região Metropolitana do Cariri (RMC), no sul do Ceará, onde existe uma percepção de ausência de limites urbanos entre os três municípios: Crato, Juazeiro do Norte e Barbalha. Assim, este trabalho busca compreender a dinâmica da expansão do Crajubar, por meio de técnicas de Geoprocessamento. Para tanto, utilizou-se arquivos vetoriais da delimitação territorial com mancha urbana do ano de 2005 e imagens orbitais dos satélites GeoEye do ano de 2018. Para o processamento dos dados foi utilizado o software QGIS. O Google Earth foi usado para identificar estabelecimentos responsáveis por atraírem crescimento urbano para o seu entorno, ainda foram utilizadas informações oficiais de crescimento populacional e informações econômicas geradas pelos órgãos oficiais. Como resultados, geraram-se arquivos vetoriais com duas manchas urbanas da região, sendo uma de 2005 e outra de 2018, as quais apresentam a conurbação dos três municípios para as duas situações. A partir do mapa gerado, construiu-se o entendimento dos fatores que impulsionam a expansão espacial urbana do Crajubar, tais como serviços públicos nas áreas de infraestrutura, saúde e educação. Evaluation of expansion of Crajubar urban agglomerate using geomatics A B S T R A C TIn the Northeast region of Brazil there is a range of urban agglomerations, among which the urban conurbation known as Crajubar. It is located in the metropolitan area of Cariri (MAC), in the south of Ceará, where there is a perception of the absence of urban boundaries between the three towns: Crato, Juazeiro do Norte and Barbalha. This work tries to understand the dynamics of the expansion of Crajubar, using Geoprocessing techniques. It was used shapefiles of the territorial delimitation with urban area of the year of 2005 and GeoEye satellites images of the year of 2018. The QGIS software was used for data processing. The Google Earth was used to identify companies and institutions responsible for attracting urban growth for the around their area, official information on population growth and economic information generated by government institutions was also used. As a result, shapefiles were generated with two urban areas in the region, one of area in 2005 and another area in 2018, where each one presents the conurbation of the three towns for both situations. From the generated map, the understanding of the factors that have influenced the urban spatial expansion of Crajubar was constructed, such as public services of infrastructure, health and education.Keywords: Urbanization, Population Growth, Geoprocessing.


2018 ◽  
Vol 33 (3) ◽  
pp. 287-298 ◽  
Author(s):  
Quan Yuan

With the rapid spatial expansion of the warehousing industry in major metropolitan areas, environmental impacts associated with warehousing activities have been growing in the recent decades. This study focuses on the disproportionate distribution of warehousing facilities in disadvantaged neighborhoods and discusses how the disparities result from the interactions between various socioeconomic processes. From the perspective of environmental justice, warehousing-related environmental hazards affect the spatial relationship between warehouses and local communities. The changing factors in the firm location choice of warehousing facilities and the housing location choice of disadvantaged population jointly lead to the environmental justice problem in warehousing location.


1962 ◽  
Vol 16 (1) ◽  
pp. 37-56 ◽  
Author(s):  
Harold Karan Jacobson

Colonialism, at least as it is generally defined in the United Nations as Western rule of non-metropolitan areas, is rapidly being brought to a close. As a consequence, within a few years some of the activities of the United Nations will be reduced to almost insignificant proportions. Seven of the eleven territories that were once included within the trusteeship system have already achieved self-government or independence, and another, Ruanda-Urundi, will soon attain that goal. Unless new territories are added, only Nauru, New Guinea, and the Pacific Islands will remain under trusteeship. The list of territories which according to the General Assembly are subject to the provisions of Chapter XI of the Charter has not been cut as drastically, but in terms of the number of people involved, the reduction is equally impressive. Even with the high rate of population growth and the addition of the Spanish and Portuguese dependencies, the number of people living in such areas is about one-fifth of the 1946 figure of 215,000,000. With a few important exceptions such as Kenya, Uganda, Nyasaland and the Rhodesias, and Angola and Mozambique, the territories which in the UN's view “have not yet attained a full measure of self-government” are small and have populations of less than one million. It has already been recommended that the future of the Department of Trusteeship and Information from Non-Self-Governing Territories and the possibility of allocating its duties to other departments be reviewed in the light of these developments.


2016 ◽  
Vol 3 ◽  
pp. 55-78
Author(s):  
Alejandro Mendoza Jaramillo

Resumen: El presente artículo hace un breve recorrido por las lógicas y procesos en torno a uno de los fenómenos de ocupación del suelo más difundidos en las ciudades latinoamericanas –Urbanizaciones Cerradas (UC) –, aterrizado en las áreas metropolitanas de Bogotá y Buenos Aires. En este sentido, se busca develar las particularidades y similitudes en la instalación de ese producto inmobiliario y su posible incidencia en la configuración de dos metrópolis, leído a través de tres dimensiones (crecimiento poblacional, instalación de UC y configuración urbana). ___Palabras clave: Urbanizaciones cerradas, áreas metropolitanas, ciudad latinoamericana. ___Abstract: The present article makes a brief tour of the logics and processes around one of the phenomena of land occupation most widespread in the Latin American cities –Closed Urbanizations (UC)–, landed in the metropolitan areas of Bogota and Buenos Aires. In this sense, we seek to uncover the peculiarities and similarities in the installation of this real estate product and its possible impact on the configuration of two metropolis, read through three dimensions (population growth, UC installation and urban configuration). ___Keywords: Closed urbanizations, metropolitan areas, Latin American city. ___Recibido: 31 de Julio de 2016. Aceptado: 5 Septiembre de 2016.


2016 ◽  
Vol 41 (2) ◽  
pp. 233-255 ◽  
Author(s):  
Benjamin Bellman ◽  
Seth E. Spielman ◽  
Rachel S. Franklin

While population growth has been consistently tied to decreasing racial segregation at the metropolitan level in the United States, little work has been done to relate small-scale changes in population size to integration. We address this question through a novel technique that tracks population changes by race and ethnicity for comparable geographies in both 2000 and 2010. Using the Theil index, we analyze the fifty most populous metropolitan statistical areas in 2010 for changes in multigroup segregation. We classify local areas by their net population change between 2000 and 2010 using a unique unit of analysis based on aggregating census blocks. We find strong evidence that growing parts of rapidly growing metropolitan areas of the United States are crucial to understanding regional differences in segregation that have emerged in past decades. Multigroup segregation declined the most in growing parts of growing metropolitan areas. Comparatively, growing parts of shrinking or stagnant metropolitan areas were less diverse and had smaller declines in segregation. We also find that local areas with shrinking populations had disproportionately high minority representation in 2000 before population loss took place. We conclude that the regional context of population growth or decline has important consequences for the residential mixing of racial groups.


2013 ◽  
pp. 193-202 ◽  
Author(s):  
Silvana Audrá Cutolo ◽  
Giuliana Carolina Talamini ◽  
Juliane Gaviolli ◽  
Paulo Nascimento ◽  
Leandro Luiz Giatti

ZooKeys ◽  
2020 ◽  
Vol 953 ◽  
pp. 137-159
Author(s):  
Julio A. Lemos-Espinal ◽  
Geoffrey R. Smith

The State of Mexico has a unique combination of geographic characteristics and topography that promotes a high biodiversity. Unfortunately, continued human population growth of the metropolitan areas of Mexico City and Toluca have degraded the environment of the State of Mexico, which threatened its wildlife. An updated checklist of the amphibians and reptiles of the State of Mexico is provided and their conservation status summarized. The State of Mexico has 49 species of amphibians and 101 species of reptiles. The majority of the amphibians (73.5%) and reptiles (70.3%) found in the State of Mexico are endemic to Mexico. Of the amphibian and reptile species in the State of Mexico, 20.1% are IUCN listed (i.e., Vulnerable, Near Threatened, or Endangered), 18.4% are placed in a protected category by SEMARNAT (excluding NL and Pr, this last category is equivalent to the LC category of IUCN), and 34.9% are categorized as high risk by the EVS. The importance of forested habitats for the protected amphibians and reptiles in the State of Mexico suggest that management of these habitats to maintain or expand them needs to be considered.


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