Procesos urbanos recientes en el Área Metropolitana de Concepción: transformaciones morfológicas y tipologías de ocupación

Abstract

RESUMENPara conocer los recientes procesos de ocupación metropolitanos se ha elaborado una metodología basada en la fotointerpretación de imágenes aéreas e información censal. Esta metodología se aplica en el Área Metropolitana de Concepción (AMC), para los años censales 1992 y 2002. Del análisis se obtienen mapas y tablas estadísticas que sintetizan aspectos relevantes del proceso de crecimiento de las áreas urbanas desde una perspectiva morfológica, así como las tipologías de ocupación de suelo urbano y el impacto que estas tienen sobre la variación de densidad de población urbana, a escala metropolitana y comunal. Los resultados muestran que durante el periodo de estudio el AMC tiene un crecimiento urbano importante, producto principalmente del consumo de suelo industrial y residencial, que a su vez impacta negativamente en la densidad de población urbana.Palabras clave: Área Metropolitana de Concepción, ocupación urbana, crecimiento urbano, expansión urbana, consumo de suelo. ABSTRACTTo understand the recent processes of metropolitan occupation, a methodology based on visual interpretation of aerial and satellite images and census data has been developed. This methodology has been applied on the Metropolitan Area of Concepción (MAC), for the census years 1992 and 2002. This analysis provides maps and statistical tables that allow synthesizing relevant aspects of the growth processes of urban areas from a morphological perspective; as well as the types of occupation of urban land and the impact these have on the variation of urban population density on a metropolitan and municipal scale. The results show that during the study period, the MAC had a significant urban growth, mainly resulting from the consumption of industrial and residential land, condition that, at the same time, produced a negative impact on the urban population density.

Sacrifice zones and the construction of urban energy landscapes in Concepción, Chile

“…With nearly one million people distributed in eleven boroughs, and run by eleven mayors, Concepción is the country's second largest metropolitan area and the capital of the Bio Bio region. Spread along the Bio Bio river and the Pacific coastal shore in a halved radial structure, since the 1990s its expansion has been filling in the gaps between central and peripheral boroughs, increasing the population and urban areas to form a metropolitan conurbation (Salinas Varela et al 2010). Despite this spatial transition, the functional structure of jobs and services still concentrates on the two main central boroughs, which suggests an unbalanced bi-central structure (Rojas Quezada et al 2009).…”

The Role of Planning Policies in Promoting Urban Sprawl in Intermediate Cities: Evidence from Chile

“…The photointerpretation consisted of categorizing land uses with 2011 satellite images available in Google Earth software, based on the classification of Salinas and Pérez [6], which consists of a typology of five residential types (dense continuous, mid-dense continuous, discontinuous blocks, discontinuous low density, disperse discontinuous) and three non-residential types (industrial, services, and artificial zones). Through this classification, it is possible to identify land uses that reveal the morphological composition of urban sprawl, as fragmentation beyond the urban boundary increases.…”

“…The data were constructed based on photointerpretation of the periurban areas of these cities between 2003 and 2011; the images are from Google Earth (2011). The categories used in the photointerpretation are based on a typology initially proposed by Salinas and Pérez [6], which identifies residential use areas-differentiated by morphology (continuous or discontinuous) and density (high, medium or low) criteria-as well as categories of industrial and service areas. This typology reveals not only the urban sprawl that has taken place but also its composition: The different uses that have been developed and their forms.…”

Análisis de la relación entre temperaturas superficiales y tejidos urbanos como insumo para la planificación urbana. El caso Temuco-Padre Las Casas, 2013

“…En las últimas décadas, en las ciudades chilenas han ocurrido importantes procesos de expansión urbana impulsados por las transformaciones económicas, sociales, culturales y ambientales que han experimentado (Romero y Molina, 2007). Esto se ha reflejado en complejos patrones de ocupación del suelo que se expresan en un mosaico de diversas tipologías de ocupación (Salinas y Pérez, 2011).…”