Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance

Different growth parameters and thermal performances of selected plant species grown on vertical system modules in urban tropical climate have been investigated under the study. Further, outdoor thermal comfort simulation has been modeled by ENVImet 4.4.5 to investigate the applicability of selecte...

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Autores principales:	T.A.N.T. Perera, G.Y. Jayasinghe, R.U. Halwatura, H.T. Rupasinghe
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	ENVI-met Leaf Area Index Mean temperature difference Plant physiological parameters Urban microclimate Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/c1e81ca241d6471f88f445d8434afcfe
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spelling	oai:doaj.org-article:c1e81ca241d6471f88f445d8434afcfe2021-12-01T04:53:55ZModelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance1470-160X10.1016/j.ecolind.2021.107816https://doaj.org/article/c1e81ca241d6471f88f445d8434afcfe2021-09-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21004817https://doaj.org/toc/1470-160XDifferent growth parameters and thermal performances of selected plant species grown on vertical system modules in urban tropical climate have been investigated under the study. Further, outdoor thermal comfort simulation has been modeled by ENVImet 4.4.5 to investigate the applicability of selected plant species in three different tropical conditions (Colombo Sethsiripaya administrative complex, Matara urban council building and Kandy Urban council building). Sample modular vertical green living wall panels were fabricated by using timber frames (60 × 40 × 5 cm) packed with cocopeat medium with a depth of 3.8 cm. Nine plant species; such as Desmodium triflorum, Roheo spathacea, Centella asiatica, Axonopus fissifoliu, Axonopus compressus, Elusine indica, Dieffenbachiae spp, Tectaria spp, and Bigonia spp were selected for the study. Plant survival percentages, plant height and leaf area index (LAI) were recorded for 8 weeks. Thermal performances were evaluated by considering temperatures at (a) 20 cm distance in front of the green wall, (b) substrate surface of the green wall modules and (c) inside the green wall compared to (d) adjacent bare wall (Control). The highest LAI was recorded from Roheo spp (3.99) followed by Axonopus f. (3.20) and Elusine spp (2.21). Axonopus f. exhibited the highest coverage on the living wall due to high LAI (>1). The highest temperature reduction (5.06 °C) was displayed by Axonopus f. compared to the other species as it covers large extent of the wall. The simulation study of the green walls developed with Axonopus f. signified a possible maximum temperature reduction of 2.07 °C, 3.29 °C and 2.03 °C in Colombo Sethsiripaya administrative complex, Matara urban council building and Kandy urban council building, respectively. Hence, modelling vertical greening with Axonopus f. can effectively enhance the thermal performance in urban context due to their LAI values and the thermal performances.T.A.N.T. PereraG.Y. JayasingheR.U. HalwaturaH.T. RupasingheElsevierarticleENVI-metLeaf Area IndexMean temperature differencePlant physiological parametersUrban microclimateEcologyQH540-549.5ENEcological Indicators, Vol 128, Iss , Pp 107816- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ENVI-met Leaf Area Index Mean temperature difference Plant physiological parameters Urban microclimate Ecology QH540-549.5
spellingShingle	ENVI-met Leaf Area Index Mean temperature difference Plant physiological parameters Urban microclimate Ecology QH540-549.5 T.A.N.T. Perera G.Y. Jayasinghe R.U. Halwatura H.T. Rupasinghe Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
description	Different growth parameters and thermal performances of selected plant species grown on vertical system modules in urban tropical climate have been investigated under the study. Further, outdoor thermal comfort simulation has been modeled by ENVImet 4.4.5 to investigate the applicability of selected plant species in three different tropical conditions (Colombo Sethsiripaya administrative complex, Matara urban council building and Kandy Urban council building). Sample modular vertical green living wall panels were fabricated by using timber frames (60 × 40 × 5 cm) packed with cocopeat medium with a depth of 3.8 cm. Nine plant species; such as Desmodium triflorum, Roheo spathacea, Centella asiatica, Axonopus fissifoliu, Axonopus compressus, Elusine indica, Dieffenbachiae spp, Tectaria spp, and Bigonia spp were selected for the study. Plant survival percentages, plant height and leaf area index (LAI) were recorded for 8 weeks. Thermal performances were evaluated by considering temperatures at (a) 20 cm distance in front of the green wall, (b) substrate surface of the green wall modules and (c) inside the green wall compared to (d) adjacent bare wall (Control). The highest LAI was recorded from Roheo spp (3.99) followed by Axonopus f. (3.20) and Elusine spp (2.21). Axonopus f. exhibited the highest coverage on the living wall due to high LAI (>1). The highest temperature reduction (5.06 °C) was displayed by Axonopus f. compared to the other species as it covers large extent of the wall. The simulation study of the green walls developed with Axonopus f. signified a possible maximum temperature reduction of 2.07 °C, 3.29 °C and 2.03 °C in Colombo Sethsiripaya administrative complex, Matara urban council building and Kandy urban council building, respectively. Hence, modelling vertical greening with Axonopus f. can effectively enhance the thermal performance in urban context due to their LAI values and the thermal performances.
format	article
author	T.A.N.T. Perera G.Y. Jayasinghe R.U. Halwatura H.T. Rupasinghe
author_facet	T.A.N.T. Perera G.Y. Jayasinghe R.U. Halwatura H.T. Rupasinghe
author_sort	T.A.N.T. Perera
title	Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
title_short	Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
title_full	Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
title_fullStr	Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
title_full_unstemmed	Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
title_sort	modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/c1e81ca241d6471f88f445d8434afcfe
work_keys_str_mv	AT tantperera modellingofverticalgreenerysystemwithselectedtropicalplantsinurbancontexttoappraiseplantthermalperformance AT gyjayasinghe modellingofverticalgreenerysystemwithselectedtropicalplantsinurbancontexttoappraiseplantthermalperformance AT ruhalwatura modellingofverticalgreenerysystemwithselectedtropicalplantsinurbancontexttoappraiseplantthermalperformance AT htrupasinghe modellingofverticalgreenerysystemwithselectedtropicalplantsinurbancontexttoappraiseplantthermalperformance
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Modelling of vertical greenery system with selected tropical plants in urban context to appraise plant thermal performance

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