![]() ![]() The need to “renature” cities, find nature-based solutions to urban problems, and thus, make cities greener and more respectful of natural laws, has been recognized (e.g., European Commission, 2021). Contemporary cities violate nature and its laws, as they are made of concrete, are designed around the use of private cars and fossil fuels, with a high density of human population and human activities, importing resources for inhabitants' needs and used with a linear logic, generating much waste. Furthermore, although the type of the green roof-open or modular-could not be directly associated with plant performance, it may be worth examining its impact on plant community performance in future studies.Ĭities continue to grow and to attract an increasing number of people at present, cities house more than half of the global human population. A main insight arising from this study is that plant communities and interspecies relations should be examined more closely in future green roof research as they may affect the impact of selected parameters on plant growth on Mediterranean green roofs. The results indicated that substrate depth, type of green roof and substrate organic content are not significantly important parameters affecting the growth of plants and cannot predict plant performance by themselves. Data were analyzed using multiple regression with Analysis of Variance. The aim of this pilot study was to explore the growth of five plants- Sedum sediforme, Drosanthemum floribundum and Lampranthus spectabilis, Medicago arborea, and Lavandula angustifolia-on a pilot Mediterranean green roof in relation to substrate depth, organic content of substrate and type of green roof (open and modular). What types of plants are appropriate, how green roofs should be constructed and other related topics have concerned scientists in the recent years. Green roofs in the Mediterranean region, due to the climatic specificities of the area, have been a challenge. Thus, it is important to examine which parameters influence this growth. Plant growth on green roofs affects the environmental performance of the roof. ![]() Green roofs have been proposed as a significant method of “renaturing” the city, mitigating the urban heat island effect and controlling storm water movement. Environmental Studies Program, Science and Mathematics Department-Deree, The American College of Greece, Aghia Paraskevi, Greece.Christina Marouli * † Pinelopi Savvidou † Maria Koutsokali † Paraskevi Papadopoulou † Anastasia Misseyanni † Georgia Tsiliki † Dimitris Georgas †
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