Combining the needs related to human activities with environmental balances is one of the critical points in the application of models of sustainable development to the urban context. In order to promote strategies aimed at resolving this conflict, European policies have proposed a method of analysing the urban environment which is based on a number of indicators that can bring out different levels of sustainability. Biodiversity, air and water quality, soil consumption / water, waste production, are some of these indicators which are used and usable for answering the specific needs of urban sustainability (Toppetti, 2014). Based on this approach, the recovery of urban open spaces contributes to the achievement of urban quality in its various manifestations. In the presence of micro-climatic conditions which are particularly unfavourable, and if the environmental and ecological balance is seriously compromised, the role of the system of urban open spaces gets values even more complex that must necessarily be the focus of any projects according to an eco-oriented approach. The present study aims at analysing urban contexts characterized by a state of precariousness and degradation of the natural environment. These urban contexts are constantly exposed to factors such as urban air, water and soil pollution. These factors accelerate the degradation process and constitute a threat to people's health as well as for local biodiversity. This problem is typical of many medium-sized cities in the semi-arid region of north-eastern Brazil. In particular, the reflection will be conducted in two cities located on the edge of the São Francisco river: Juazeiro (BA) and Petrolina (PE). Both are characterized by a limited presence of permeable surfaces and by the presence of significant degraded "green" areas which are configured, in most cases, as a result of spaces between built environments. Starting from the analysis of the characteristics of eco-landscape and fruition of natural areas in the cities, the authors will endeavour to identify the potential for environmental and technological purposes for an intervention of recovery with conservative and requalification objectives. The participatory study of the social context of the examined cities, in connection with the specific needs of use of space on the urban scale, constitutes a further field instrumental investigation aimed at implementing shared and durable interventions.

Il recupero degli spazi naturali nelle città medie dei nord-est del Brasile

FRANCHINO, Rossella;FRETTOLOSO, Caterina;
2015

Abstract

Combining the needs related to human activities with environmental balances is one of the critical points in the application of models of sustainable development to the urban context. In order to promote strategies aimed at resolving this conflict, European policies have proposed a method of analysing the urban environment which is based on a number of indicators that can bring out different levels of sustainability. Biodiversity, air and water quality, soil consumption / water, waste production, are some of these indicators which are used and usable for answering the specific needs of urban sustainability (Toppetti, 2014). Based on this approach, the recovery of urban open spaces contributes to the achievement of urban quality in its various manifestations. In the presence of micro-climatic conditions which are particularly unfavourable, and if the environmental and ecological balance is seriously compromised, the role of the system of urban open spaces gets values even more complex that must necessarily be the focus of any projects according to an eco-oriented approach. The present study aims at analysing urban contexts characterized by a state of precariousness and degradation of the natural environment. These urban contexts are constantly exposed to factors such as urban air, water and soil pollution. These factors accelerate the degradation process and constitute a threat to people's health as well as for local biodiversity. This problem is typical of many medium-sized cities in the semi-arid region of north-eastern Brazil. In particular, the reflection will be conducted in two cities located on the edge of the São Francisco river: Juazeiro (BA) and Petrolina (PE). Both are characterized by a limited presence of permeable surfaces and by the presence of significant degraded "green" areas which are configured, in most cases, as a result of spaces between built environments. Starting from the analysis of the characteristics of eco-landscape and fruition of natural areas in the cities, the authors will endeavour to identify the potential for environmental and technological purposes for an intervention of recovery with conservative and requalification objectives. The participatory study of the social context of the examined cities, in connection with the specific needs of use of space on the urban scale, constitutes a further field instrumental investigation aimed at implementing shared and durable interventions.
2015
9788884975447
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11591/348561
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