Using Chlorophyll a Fluorescence Imaging to Select Desiccation-Tolerant Native Moss Species for Water-Sustainable Green Roofs

Green roofs have been more thoroughly investigated in the last few years due to the potential benefits they offer to ecosystems in urban areas (e.g., carbon sequestration, particle retention, heat island effect attenuation). However, current climate change models predict an increase in desertificati...

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Veröffentlicht in:Water (Basel) 2020-06, Vol.12 (6), p.1748
Hauptverfasser: Cruz de Carvalho, Ricardo, Afonso do Paço, Teresa, Branquinho, Cristina, Marques da Silva, Jorge
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container_issue 6
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container_title Water (Basel)
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creator Cruz de Carvalho, Ricardo
Afonso do Paço, Teresa
Branquinho, Cristina
Marques da Silva, Jorge
description Green roofs have been more thoroughly investigated in the last few years due to the potential benefits they offer to ecosystems in urban areas (e.g., carbon sequestration, particle retention, heat island effect attenuation). However, current climate change models predict an increase in desertification, with an increase in temperature and decrease in rainfall, which means there is an increasing demand for green roofs with lower water consumption. Vegetation with very little water requirements, such as desiccation-tolerant mosses, has shown a potential to complement or substitute for vascular species, increasing the sustainability of lower water use in green roofs. In this study, we use chlorophyll a fluorescence imaging to screen for bryophytes with adequate physiology to be used in green roofs placed in at-risk areas with prolonged drought episodes. Apart from Hypnum cupressiforme, all selected species presented a high potential for use in those conditions, particularly Didymodon fallax, Grimmia lisae, Pleurochaete squarrosa, and Targionia hypophylla. Chlorophyll a fluorescence imaging technology proved to be a simple and non-invasive tool for a fast screening of these poikilohydric organisms, to be used in future studies of bryophyte biology, but more importantly in the green roof industry.
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subjects Aesthetics
Aquatic plants
Attenuation
Bryophytes
Chlorophyll
Climate change
Climate change models
Climate effects
Climate models
Climate prediction
Cyanobacteria
Desertification
Desiccation
Drought
Environmental changes
Environmental risk
Flowers & plants
Fluorescence
Green buildings
Green roofs
Heat
Humidity
Imaging
Indigenous species
Irrigation
Light
Mosses
Photosynthesis
Rain
Rainfall
Roofs
Sustainability
Sustainable design
Urban areas
Urban heat islands
Water consumption
Water requirements
Water shortages
Water use
title Using Chlorophyll a Fluorescence Imaging to Select Desiccation-Tolerant Native Moss Species for Water-Sustainable Green Roofs
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