Drought tolerance in different vegetation types for extensive green roofs: Effects of watering and diversity

Nagase, Ayako; Dunnett, Nigel

doi:10.1016/j.landurbplan.2010.07.005

Cited by 259 publications

(117 citation statements)

References 22 publications

Supporting

Mentioning

108

Contrasting

Unclassified

Order By: Relevance

“…These include a reduction in cooling costs due to reduced energy consumption (Takebayashi and Moriyama 2007;Alexandri and Jones 2008); a reduction in noise pollution (Dunnett and Kingsbury 2004;van Renterghem and Booteldooren 2009); a reduction in air pollution because of lower temperatures and enhanced the air quality (Currie and Bass 2008;Feng et al 2010); an increase in amenity and aesthetic value (Fernandez-Cañero et al 2013); encouragement of biodiversity by becoming wildlife habitats (Dunnett et al 2008;Gedge and Kadas 2005); a reduction in flood risk and the removal of pollutants from urban runoff (Berndtsson 2010;Razzaghmanesh, Beecham and Kazemi 2014a); and an increase in infrastructure value (Nagase and Dunnett 2010).…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Greywater Irrigated Green Roof Systems in an Arid Climate

Chowdhury

Abaya

2018

JWMM

View full text Add to dashboard Cite

Green roofs provide multi-functional benefits to the built environment. They minimize urban heat island effects, enhance biodiversity, reduce carbon footprints, provide hydraulic benefits to urban runoff, and improve overall environmental sustainability.However, their application is limited or rare in arid climates. On the other hand, greywater is becoming a popular alternative water resource in water-scarce regions. A greywater-fed green roof system was developed and studied in the city of Al Ain, United Arab Emirates (UAE). The effluent (treated greywater) from the green roofs can be used to irrigate amenity plantations. Two intensive and two extensive green roof prototypes were constructed, planted with reed canary grass (Phalaris arundinacea L.), and irrigated with greywater. The greywater influents and the green roof effluents were monitored for changes in greywater quality. The study showed that the intensive system performed well, which is attributable to the greater depth of soil media. Treated greywater effluent from the green roofs met the local standards for recycled wastewater-based irrigation for a number of parameters (pH, electrical conductivity, salinity, and total dissolved solids), but exceeded the maximum allowable limits for turbidity, COD, and sodium ions (Na + ), which may be because of the short retention time of the experiment. Both the intensive and the extensive systems were inefficient in reducing the total bacterial count of the greywater.

show abstract

Section: Introductionmentioning

confidence: 99%

An Experimental Study of Greywater Irrigated Green Roof Systems in an Arid Climate

Chowdhury

Abaya

2018

JWMM

View full text Add to dashboard Cite

show abstract

“…This suggests that the physiological responses of Sedum species to soil water regimes severely affect the carbon sequestration and the cooling effect of a Sedum green roof. However, the investigation of Sedum species in green roofs has tended to focus primarily on their drought tolerance (Monterusso et al, 2005;VanWoert et al, 2005;Nagase and Dunnett, 2010;Thuring et al, 2010), and less attention has been paid to their physiological traits in wet conditions.…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic and Transpiration Rates of Three <I>Sedum</I> Species Used for Green Roofs

Kuronuma

Watanabe

2017

Environmental Control in Biology

View full text Add to dashboard Cite

“…The performance and efficiency of green roofs also depend on the nature of the substrate layer [42]. Research conducted by [43] showed that a substrate layer of clay is able to increase the thermal resistance of the roof by 0.4 m 2 ·kW for each 10 cm increase in thickness. Also, changes in the physical characteristics of plants influence their environmental contribution [44].…”

Section: Overview Of Green Roof Technologymentioning

confidence: 99%

Energy and Economic Evaluation of Green Roofs for Residential Buildings in Hot-Humid Climates

et al. 2017

View full text Add to dashboard Cite

Green roofs may be considered a passive energy saving technology that also offer benefits like environmental friendliness and enhancement of aesthetic and architectural qualities of buildings. This paper examines the energy and economic viability of the green roof technology in the hot humid climate of Saudi Arabia by considering a modern four bedroom residential building in the city of Dhahran as a case study. The base case and green roof modelling of the selected building has been developed with the help of DesignBuilder software. The base case model has been validated with the help of 3-month measured data about the energy consumption without a green roof installed. The result shows that the energy consumption for the base case is 169 kWh/m 2 while the energy consumption due to the application of a green roof on the entire roof surface is 110 kWh/m 2 . For the three investigated green roof options, energy saving is found to be in the range of 24% to 35%. The economic evaluation based on the net present value (NPV) approach for 40 years with consideration to other environmental advantages indicates that the benefits of the green roof technology are realized towards the end of the life cycle of the building.

show abstract

Drought tolerance in different vegetation types for extensive green roofs: Effects of watering and diversity

Cited by 259 publications

References 22 publications

An Experimental Study of Greywater Irrigated Green Roof Systems in an Arid Climate

An Experimental Study of Greywater Irrigated Green Roof Systems in an Arid Climate

Photosynthetic and Transpiration Rates of Three <I>Sedum</I> Species Used for Green Roofs

Energy and Economic Evaluation of Green Roofs for Residential Buildings in Hot-Humid Climates

Contact Info

Product

Resources

About