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Como e onde actuam as Green Walls. Aptidão e potencial
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Face a uma urgência climática global e dentro de uma preocupação generalizada quanto às suas consequências, esta dissertação parte da pergunta: porque está uma vasta área da cidade despida de função ecológica? Este estudo, relativo à instalação de sistemas de Green Walls, surge como um caminho que tentativamente responde à pergunta colocada. Neste sentido, é feita uma revisão bibliográfica que pretende demonstrar o potencial abiótico e o potencial biótico que estes sistemas podem representar. Evidencia-se de uma forma sintética alguns dos processos responsáveis pela regulação da temperatura destes sistemas, bem como são apresentados valores de regulação da temperatura das estruturas em que estes são instalados, salientando consequências na paisagem. São apresentados estudos científicos que consideram as Green Walls como uma forma de constructed wetlands, onde se registaram valores de remoção de contaminantes promissores no tratamento de águas residuais cinzentas. São explorados também estudos científicos que investigam o potencial de sequestro de carbono destes sistemas, em diferentes condições climáticas, procurando relacionar alguns dos valores destas investigações com o resultado do trabalho prático. São explorados os conceitos de continuidade e conectividade em relação à biodiversidade considerando que o aumento de área verde que pode surgir destes sistemas pode ser sinónimo de habitat. O trabalho prático explora noções de aptidão para a instalação destes sistemas e desenvolve uma metodologia de cartografia do conceito desenvolvido de espaços de oportunidade para a instalação de Green Walls. São definidos e cartografados três critérios de aptidão para a instalação destes sistemas: o critério de aptidão de exposição solar, o critério de aptidão de disponibilidade de água e o critério de aptidão de estabilidade estrutural. Procura-se relacionar os resultados da área destes espaços de oportunidade com algumas questões estudadas relativamente ao potencial das Green Walls.
Faced with a global climate emergency and widespread concern about its consequences, this dissertation is based on the question: why is a vast area of the city deprived of its ecological function? This study of the installation of Green Walls systems emerges as a way of tentatively answering this question. To this end, a literature review is carried out to demonstrate the abiotic and biotic potential that these systems can represent. It is shown in a synthetic way some of the responsible processes for regulating the temperature of these systems, as well as temperature regulation values for the structures in which they are installed, highlighting the consequences for the landscape. Scientific studies that consider Green Walls as a form of constructed wetlands, where promising contaminant removal values have been recorded in the treatment of gray wastewater, are presented. Scientific studies investigating the potential of carbon sequestration of these systems in different climatic conditions are also explored, seeking to relate some of the values of these investigations to the results of the practical work. The concepts of continuity and connectivity in relation to biodiversity are explored, considering that the increase in green areas that can arise from these systems can be synonymous of habitat. The practical work explores notions of suitability for the installation of Green Walls and develops a methodology for mapping the developed concept of opportunity spaces for the installation of Green Walls. Three suitability criteria for installing these systems are defined and mapped: the solar exposure suitability criterion, the water availability suitability criterion and the structural stability suitability criterion. The aim is to relate the results of the area of these opportunity spaces to some of the issues studied in relation to the potential of Green Walls.
Faced with a global climate emergency and widespread concern about its consequences, this dissertation is based on the question: why is a vast area of the city deprived of its ecological function? This study of the installation of Green Walls systems emerges as a way of tentatively answering this question. To this end, a literature review is carried out to demonstrate the abiotic and biotic potential that these systems can represent. It is shown in a synthetic way some of the responsible processes for regulating the temperature of these systems, as well as temperature regulation values for the structures in which they are installed, highlighting the consequences for the landscape. Scientific studies that consider Green Walls as a form of constructed wetlands, where promising contaminant removal values have been recorded in the treatment of gray wastewater, are presented. Scientific studies investigating the potential of carbon sequestration of these systems in different climatic conditions are also explored, seeking to relate some of the values of these investigations to the results of the practical work. The concepts of continuity and connectivity in relation to biodiversity are explored, considering that the increase in green areas that can arise from these systems can be synonymous of habitat. The practical work explores notions of suitability for the installation of Green Walls and develops a methodology for mapping the developed concept of opportunity spaces for the installation of Green Walls. Three suitability criteria for installing these systems are defined and mapped: the solar exposure suitability criterion, the water availability suitability criterion and the structural stability suitability criterion. The aim is to relate the results of the area of these opportunity spaces to some of the issues studied in relation to the potential of Green Walls.
Descrição
Dissertação de Mestrado, Arquitetura Paisagista, 2025, Universidade de Lisboa, Instituto Superior de Agronomia.
Palavras-chave
opportunity spaces cartographic record three-dimensional modeling hours of direct sunlight and increase in green area Green Walls espaços de oportunidade registo cartográfico modelação tridimensional horas de sol directo e aumento de área verde