Impacts of green roofs on water, temperature, and air quality: A bibliometric review

Liu, Hongqing; Kong, Fanhua; Yin, Hui; Middel, Ariane; Zheng, Xiandi; Huang, Jing; Xu, Hongwei; Wang, Ding; Wen, Zhihao

doi:10.1016/j.buildenv.2021.107794

Cited by 109 publications

(63 citation statements)

References 90 publications

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“…One of the modular green roof types was proposed by the authors E. Korol and N. Shushunova [29,30]. However, no standard assessment methods exist to value green roofs, and balance between different services is lacking [3]. There is still a lack of comprehensive calculation of the economic merit of green roofs and walls, including their installation process, which has restricted the decision-making process [33].…”

Section: Discussionmentioning

confidence: 99%

“…A quantitative analysis of 1623 English language sources indexed in Scopus from 1981 to 2020 shows that research on green roofs has steadily increased. Approximately 40.9% of the articles focus on regulating services in water, 30.0% on the thermal environment, and 3.5% on air quality [3]. Green roofs showed a surface temperature cooling effect [4,5].…”

Section: Introductionmentioning

confidence: 99%

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Modular Green Roofs for the Sustainability of the Built Environment: The Installation Process

2021

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The research object is the installation process of modular green roofs with planters placed on the concrete roof’s surface. These roofs effectively reduce rainfall disposal, prolong the lifespan of the roof coating, and enhance urban aesthetic and recreational spaces. Green roofs reduce houses’ gas emissions and increase green spaces in densely built areas. The spatial–technological model was developed for the proposed modular green roof based on network planning, scheduling theory, and graph theory. The sequence and composition of technological processes and operations were established for the installation process. The functional model of installing a modular green roof has been developed. The model makes it possible to optimise the principles of saving labour contribution (working hours) and time.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modular Green Roofs for the Sustainability of the Built Environment: The Installation Process

2021

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“…Bibliometric analysis on Scopus data set was done using bibliometric R packages [15] and visualization of similarities (VOS) using software viewer [16]. Bibliometric R packages was used to extract information such as rate of yearly publication, number of author and frequency of citatio n [17]. Software R version 4.0.0 and R Studio 1.4.1106 was used this research with Biblioshiny Tools [18].…”

Section: Bibliometric Analysismentioning

confidence: 99%

An Overview and Future Outlook of Indonesian Agroforestry: a Bibliographic and Literature Review

2021

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Indonesian agroforestry has been developed along the history, since been reported that home garden was practiced from 3,000 BC in Java Island. However, agroforestry practices were recognized to have less contribution to people welfare and environmental sustainability. Bibliometric and literature studies extracting baseline information from thousands of publications were done to analyse history and future projection of Indonesian agroforestry. Research and publication on Indonesian agroforestry is steadily increasing in number and quality. Topics related with traditional land use system and ecosystem services were frequently found, and therefore classified as motor themes. There were 16 most attractive commodities stated in the publications, including palm oil and rubber. Rubber agroforest was the only system that pay interest in several decades. There were many researches on indigenous agroforestry practices in the islands, but mostly (77%) concentrated in Java Island, especially studying private forest and home garden. The research on the issues of population pressure on forestland and efficient use of resources are the most popular topic in the decades. In the recent decade, broader theme of research was found including climate change and long-term livelihood. Based on the study, indigenous agroforestry is still important subject to study, but future roadmap of agroforestry must be developed by integrating forestry and agriculture approaches.

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“…Another promising alternative is the use of natural walls and roofs such as vertical greening systems or green roofs which can be a replacement to conventional roofs especially in crowded urbanized areas [9]. Green roofs have been receiving attention recently as effective nature-based solution to eco-environmental problems arising from climate change and rapid urbanization [10]. They can retain storm water via absorption into the substrate [11,12], reduce the building energy demand by improving the thermal insulation [13], lower noise pollution [14], in addition to improving the roof aesthetic values.…”

Section: Introductionmentioning

confidence: 99%

Towards an experimental approach for measuring the removal of urban air pollutants by green roofs

Arbid

Richard

Sleiman

2021

Building and Environment

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Green roofs are a promising approach to mitigate air pollution in urban environments, but limited experimental data is yet available. In this study, we developed a laboratory-scale setup to measure the removal nitrogen dioxide (NO 2 ) and ozone (O 3 ) using a variety of common green roof species.Experiments were conducted on detached leaves and whole plants using two chambers (0.6 L and 12 L), visible lighting, NOx/O 3 sources and online analyzers. Three species were the best performant (Thymus vulgaris, Sedum sexangulare and Heuchera Americana L.) with deposition velocities ranging from 1.6 to 4.82 m/h for NO 2 , and 1.7 to 5.56 m/h for O 3 . In both cases, thyme was the most effective plant likely due to its higher stomatal area and the reactivity of its volatile metabolites with O 3 leading to several oxidized by-products. Furthermore, NO 2 uptake was found to be enhanced by surface water released by leaf transpiration leading to the production of nitrous acid (HONO). Similar values of were observed (3.84 -4.65 m/h) when whole thyme plant was used. The soil was also found to be competitive in removing O 3 but less performant in capturing NO 2 . Using a dry deposition model, we estimated that the three plant species can uptake up to 9 kg/ha/year of NO 2 and 13.6 kg/ha/year, which fall in agreement with previously reported modeling data. Our experimental approach can be a rapid tool for screening the depollution performances of green roof species enabling an effective prioritization for deployment in urban environments.

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Impacts of green roofs on water, temperature, and air quality: A bibliometric review

Cited by 109 publications

References 90 publications

Modular Green Roofs for the Sustainability of the Built Environment: The Installation Process

Modular Green Roofs for the Sustainability of the Built Environment: The Installation Process

An Overview and Future Outlook of Indonesian Agroforestry: a Bibliographic and Literature Review

Towards an experimental approach for measuring the removal of urban air pollutants by green roofs

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