Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green 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. Plant growth on green roofs affects the environmental performance of the roof. Thus, it is important to examine which parameters influence th...

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Main Authors: Christina Marouli, Pinelopi Savvidou, Maria Koutsokali, Paraskevi Papadopoulou, Anastasia Misseyanni, Georgia Tsiliki, Dimitris Georgas
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-01-01
Series:Frontiers in Sustainable Cities
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/frsc.2021.796441/full
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author Christina Marouli
Pinelopi Savvidou
Maria Koutsokali
Paraskevi Papadopoulou
Anastasia Misseyanni
Georgia Tsiliki
Dimitris Georgas
author_facet Christina Marouli
Pinelopi Savvidou
Maria Koutsokali
Paraskevi Papadopoulou
Anastasia Misseyanni
Georgia Tsiliki
Dimitris Georgas
author_sort Christina Marouli
collection DOAJ
description Green roofs have been proposed as a significant method of “renaturing” the city, mitigating the urban heat island effect and controlling storm water movement. Plant growth on green roofs affects the environmental performance of the roof. Thus, it is important to examine which parameters influence this growth. Green roofs in the Mediterranean region, due to the climatic specificities of the area, have been a challenge. What types of plants are appropriate, how green roofs should be constructed and other related topics have concerned scientists in the recent years. 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). Data were analyzed using multiple regression with Analysis of Variance. 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. 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. 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.
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spelling doaj.art-995ec19a8dd14c4fa01e290af9d7f5792022-12-22T04:16:20ZengFrontiers Media S.A.Frontiers in Sustainable Cities2624-96342022-01-01310.3389/frsc.2021.796441796441Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green RoofChristina MarouliPinelopi SavvidouMaria KoutsokaliParaskevi PapadopoulouAnastasia MisseyanniGeorgia TsilikiDimitris GeorgasGreen roofs have been proposed as a significant method of “renaturing” the city, mitigating the urban heat island effect and controlling storm water movement. Plant growth on green roofs affects the environmental performance of the roof. Thus, it is important to examine which parameters influence this growth. Green roofs in the Mediterranean region, due to the climatic specificities of the area, have been a challenge. What types of plants are appropriate, how green roofs should be constructed and other related topics have concerned scientists in the recent years. 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). Data were analyzed using multiple regression with Analysis of Variance. 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. 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. 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.https://www.frontiersin.org/articles/10.3389/frsc.2021.796441/fullMediterranean green roofplant growthsubstrate depthorganic contentmodular and open systemsustainable cities
spellingShingle Christina Marouli
Pinelopi Savvidou
Maria Koutsokali
Paraskevi Papadopoulou
Anastasia Misseyanni
Georgia Tsiliki
Dimitris Georgas
Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green Roof
Frontiers in Sustainable Cities
Mediterranean green roof
plant growth
substrate depth
organic content
modular and open system
sustainable cities
title Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green Roof
title_full Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green Roof
title_fullStr Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green Roof
title_full_unstemmed Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green Roof
title_short Plant Growth on a Mediterranean Green Roof: A Pilot Study on Influence of Substrate Depth, Substrate Composition, and Type of Green Roof
title_sort plant growth on a mediterranean green roof a pilot study on influence of substrate depth substrate composition and type of green roof
topic Mediterranean green roof
plant growth
substrate depth
organic content
modular and open system
sustainable cities
url https://www.frontiersin.org/articles/10.3389/frsc.2021.796441/full
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