Suelo permeable y vegetación continua en los conjuntos habitacionales modernos: análisis de tres casos en el sector sur de Santiago de Chile

Rodrigo Eduardo Gertosio Swanston; Francisca Pantoja Lira

doi:10.29393/UR14-4SERF20004

Authors

Rodrigo Eduardo Gertosio Swanston Facultad de Arquitectura, Diseño y Estudios Urbanos, Universidad Católica de Chile, Santiago, Chile
Francisca Pantoja Lira Facultad de Arquitectura, Diseño y Estudios Urbanos, Universidad Católica de Chile, Santiago, Chile

DOI:

https://doi.org/10.29393/UR14-4SERF20004

Keywords:

Urban vegetation , ecosystem services , modern architecture , CORVI , urban landscape

Abstract

Increasing urban vegetation is one of the strategies to mitigate the effects of climate change for several reasons, including slowing the rise in temperature in cities. This is not only about increasing the number of trees but also about finding where it is best to do so on a large scale.
The objective of this study is to demon-strate that the housing complexes of the Corporación de la Vivienda (CORVI) built at the end of the 1960s, have three particular soil conditions that not only allow for the presence of continuous masses of vegetation but can also accommodate its increase on an urban scale, and thus contribute to lowering the temperature inside the complexes.
Through a cross reading of satellite images, vegetation indices (NDVI), and soil surface temperature (LST) maps, three cases are analyzed in different communes in the south of Santiago, which have low rates of green areas per inhabitant.
The results indicate that independent of the location of the cases in the capital, the large percentages of soil that have not been sealed allow the presence of tree, shrub, and herbaceous vegetation cover concentrated between the blocks and continuous outside their boundaries. Even in the case of little vegetation but with unsealed soil, the surface temperature also decreases in its immediate context. It is important to note that these characteristics are not exclusive to these examples but are present in various forms in 105 assemblages and their 2082 blocks in Chile. This broad universe of cases makes them potentially suitable areas for increasing urban vegetation and reducing the increase in urban temperature due to climate change.

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